Updated on 2025/04/03

Information

 

写真a

 
OKIBE NAOKO
 
Organization
Faculty of Engineering Department of Earth Resources Engineering Professor
Research Center for Synchrotron Light Applications （Concurrent）
Faculty of Engineering Research Center for Environmental Engineering（Concurrent）
School of Engineering （Concurrent）
Graduate School of Engineering Department of Earth Resources Engineering（Concurrent）
Title
Professor
Contact information
メールアドレス
Profile
(1)低品位・難処理性鉱石を対象としたケミカル/バイオリーチングによる銅浸出法の開発 (2)都市鉱山を対象としたクリティカルメタルのケミカル/バイオリーチング法の開発 (3)各種金属汚染水のバイオ処理法（パッシブトリートメント法）の開発 (5)高機能性のバイオナノメタル生成法の開発
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Degree

  • PhD　(Bangor University, UK)

Research History

  • University of Wales, Bangor (UK)  Academic Researcher Postdoctoral Fellow

    2025 - 2026

  • Kyushu University Faculty of Engineering Department of Earth Resources Engineering  Professor 

    2011.1 - Present

  • 財団法人　地球環境産業技術研究機構 (RITE)  研究員 研究員

    2006 - 2010.12

  • Otsuka Frankfurt Research Institute (Frankfurt, Germany)  Assistant Management 

    Otsuka Frankfurt Research Institute (Frankfurt, Germany)

    2024.1 - 2024.12

Research Interests・Research Keywords

  • Research theme： Alternative hydrometallurgical technologies for deep sea mineral resources

    Keyword： deep sea, hydrothermal diposit, cobalt rich crust, hydrometallurgy

    Research period： 2023.9

  • Research theme： Heavy metal removal by using iron sludge from the mine water treatment process

    Keyword： Mine waters, Iron sludge, Heavy metals

    Research period： 2021.4

  • Research theme： Organic hydroprocessing of urban mine wastes

    Keyword： Urban mine, Waste catalyst, Base metals, Rare metals, Organic leaching

    Research period： 2020.4 - 2024.3

  • Research theme： Bioleaching of waste catalysts

    Keyword： Urban mine, Waste catalyst, Base metals, Rare metals, Bioleaching

    Research period： 2016.4

  • Research theme： Bioleaching of refractory copper sulfides

    Keyword： Chalcopyrite, Enargite, Extreme acidophiles, Iron-and sulfur-oxidizing microbes, bioleaching

    Research period： 2015.4

  • Research theme： Bioleaching of nickel laterite

    Keyword： Nickel laterite, bioleaching, Fe(III)-reducing microbes

    Research period： 2015.4

  • Research theme： Bioleaching of waste PCBs

    Keyword： Urban mine, Cu, Precious metals, Bioleaching, PCB

    Research period： 2015.4

  • Research theme： Manganese removal from refinery waste waters using Mn(II)-oxidizing bacteria

    Keyword： Refinery waste waters, Manganese, Mn(II)-oxidizing bacteria

    Research period： 2015.4

  • Research theme： Oxidation and immobilization of arsenite using moderate thermophilic iron-oxidizing bacteria

    Keyword： Arsenite, Immobilization, Extreme thermophiles, Iron-oxidizing bacteria

    Research period： 2013.4

  • Research theme： Biooxidation of refractory gold-bearing minerals

    Keyword： Arsenopyprite, Extreme acidophiles, Iron-and sulfur-oxidizing archaea, biooxidation

    Research period： 2013.4

  • Research theme： Biorecovery of rare metals and precious metals using acidophilic iron-reducing bacteria

    Keyword： rare metals, precious metals, iron-reducing bacteria, biorecovery

    Research period： 2012.4

  • Research theme： Biomineralization

    Keyword： Manganese oxide, Microorganisms, Rare metals

    Research period： 2011.4 - 2013.3

  • Research theme： 2011~: Recovery of selenate from industrial waste water using selenate-reducing bacteria

    Keyword： Selenate, Waster water, Selenate-reducing bacteria

    Research period： 2011.4 - 2013.3

  • Research theme： Bioremediation of toxic heavy metals using acidophilic iron-reducing bacteria

    Keyword： Chromate, reduction, iron-reducing bacteria, bioremediation

    Research period： 2011.4

  • Research theme： 2011~: Immobilization of arsenite from the refining discharge using Acidianus brierleyi in the presence of pyrite

    Keyword： Arsenite, Immobilization, Extreme thermophiles, Iron-oxidizing archaea

    Research period： 2011.4

Awards

  • ナイスステップな研究者2020

    2020.12   文部科学省 科学技術・学術政策研究所  

  • 工学講義賞

    2017.8   九州大学  

  • 奨励賞

    2015.3   資源・素材学会   「超好酸性微生物の鉱物処理および環境修復への利用に関する研究」

  • クリタ水・環境科学研究優秀賞

    2014.8   「新規好酸性細菌由来EPS（細胞外ポリマー）を利用した排水からのレアメタル回収技術の開発」

  • The Institution of Mining and Metallurgy, Bosworth Smith Trust Fund (UK)

    2001.9  

  • Gen Foundation grant

    2001.9   The Gen Foundation （UK)   International Scholar

  • The GlaxoSmithKline International Scholarship

    1999.9   British Council, The GlaxoSmithKline International Scholarship Charitable Trust Fund   International Scholar

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Papers

  • Re-use of passive treatment Fe-sludge for remediation of As-contaminated waters

    Yuika Kawazoe, Kazuma Kimura, Yusei Masaki, Kengo Horiuchi, Takaya Hamai, Naoko Okibe

    Hydrometallurgy   221   2023.8

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    Language：Others   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.hydromet.2023.106123

  • Microbiological passive treatment of Mn/Zn-containing mine water

    Naoko Okibe, Kohei Nonaka, Taiki Kondo, Kazuhiko Shimada, Peiyu Liu

    Hydrometallurgy   219   2023.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.hydromet.2023.106084

  • Utilization of amino acid for selective leaching of critical metals from spent hydrodesulfurization catalyst International journal

    Idol Phann, Yu Tanaka, Sae Yamamoto, Naoko Okibe

    Frontiers in Chemistry   10   1011518 - 1011518   2022.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.3389/fchem.2022.1011518

  • Bioleaching of enargite/pyrite-rich "dirty" concentrate and arsenic immobilization

    Naoko Okibe, Kaito Hayashi, Keishi Oyama, Kazuhiko Shimada, Yuji Aoki, Takahiro Suwa, Tsuyoshi Hirajima

    Minerals   12 ( 4 )   2022.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.3390/min12040449

  • Biomining Microorganisms: Diversity and Modus Operandi

    Mark Dopson, Naoko Okibe

    Biomining Technologies: Extracting and Recovering Metals from Ores and Wastes   89 - 110   2022.1

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    Language：Others  

    DOI： 10.1007/978-3-031-05382-5_5

  • Biogenic platinum nanoparticles’ production by extremely acidophilic Fe(III)-Reducing bacteria

    Takahiro Matsumoto, Idol Phann, Naoko Okibe

    Minerals   11 ( 11 )   2021.11

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    Language：Others   Publishing type：Research paper (scientific journal)  

    DOI： 10.3390/min11111175

  • Simultaneous arsenic and iron oxidation for one-step scorodite crystallization using Mn oxide Reviewed International journal

    #Ryohei Nishi, @Santisak Kitjanukit, #Taiki Kondo, @Naoko Okibe

    Materials Transactions   11   2021.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi:10.2320/matertrans.MT-M2021120

    Repository Public URL： http://hdl.handle.net/2324/4737403

  • Carbon-assisted bioleaching of chalcopyrite and three chalcopyrite/enargite-bearing complex concentrates International journal

    Keishi Oyama, Kyohei Takamatsu, Kaito Hayashi, Yuji Aoki, Shigeto Kuroiwa, Tsuyoshi Hirajima, Naoko Okibe

    Minerals   11 ( 4 )   2021.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.3390/min11040432

  • Oxidation of arsenite by self-regenerative bioactive birnessite in a continuous flow column reactor Reviewed International journal

    Ryohei Nishi, Santisak Kitjanukit, Kohei Nonaka, Naoko Okibe

    Hydrometallurgy   196   105416   2020.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.hydromet.2020.105416

    Repository Public URL： http://hdl.handle.net/2324/4739237

  • Recovering secondary REE value from spent oil refinery catalysts using biogenic organic acids Reviewed International journal

    Melisa Pramesti Dewi, Himawan Tri Bayu Murti Petrus, Naoko Okibe

    Catalysts   10 ( 9 )   1090 - 15   2020.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.3390/catal10091090

    Repository Public URL： http://hdl.handle.net/2324/4706209

  • Catalytic mechanism of activated carbon-assisted bioleaching of enargite concentrate Reviewed International journal

    Keishi Oyama, Kazuhiko Shimada, Jun-ichiro Ishibashi, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Hydrometallurgy   196   105417   2020.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.hydromet.2020.105417

    Repository Public URL： http://hdl.handle.net/2324/4737402

  • The role of bioleaching microorganisms in saline water leaching of chalcopyrite concentrate Reviewed International journal

    Haruki Noguchi, Naoko Okibe

    Hydrometallurgy   195   105397   2020.8

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.hydromet.2020.105397

    Repository Public URL： http://hdl.handle.net/2324/4737401

  • The effect of heterogeneous seed crystals on arsenite removal as biogenic scorodite Reviewed International journal

    Naoko Okibe, Ryohei Nishi, Yuta Era, Takeharu Sugiyama

    Materials Transactions   61 ( 2 )   387 - 395   2019.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi.org/10.2320/matertrans.M-M2019858

    Repository Public URL： http://hdl.handle.net/2324/4739240

  • Bioremediation of highly toxic arsenic via carbon-fiber-assisted indirect As(III) oxidation by moderately-thermophilic, acidophilic Fe-oxidizing bacteria Reviewed International journal

    Naoko Okibe, Yuken Fukano

    Biotechnology Letters   41   1403 - 1413   2019.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： http://hdl.handle.net/2324/4737409

  • Production of highly catalytic, archaeal Pd(0) bionanoparticles using Sulfolobus tokodaii Reviewed International journal

    Santisak Kitjanukit, Keiko Sasaki, Naoko Okibe

    Extremophiles   23 ( 5 )   549 - 556   2019.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： http://hdl.handle.net/2324/4737395

  • Natural attenuation of Mn(II) in metal refinery wastewater: Microbial community structure analysis and isolation of a new Mn(II)-oxidizing bacterium Pseudomonas sp. SK3 Reviewed International journal

    Santisak Kitjanukit, Kyohei Takamatsu, Naoko Okibe

    Water   11   507   2019.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： http://hdl.handle.net/2324/4737408

  • Thiourea bioleaching for gold recycling from e-waste Reviewed International journal

    Intan Nurul Rizki, Yu Tanaka, Naoko Okibe

    Waste Management   84   158 - 165   2019.2

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： http://hdl.handle.net/2324/4737410

  • Iron redox transformation by the thermo-acidophilic archaea from the genus Sulfolobus Reviewed International journal

    Yusei Masaki, Katsutoshi Tsutsumi, Naoko Okibe

    Geomicrobiology Journal   35 ( 9 )   757 - 767   2018.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi.org/10.1080/01490451.2018.1465491

    Repository Public URL： http://hdl.handle.net/2324/4737397

  • Behavior of sulfate ions during biogenic scorodite crystallization from dilute As(III)-bearing acidic waters Reviewed International journal

    Masahito Tanaka, Keiko Sasaki, Naoko Okibe

    Hydrometallurgy   180   144 - 152   2018.7

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： http://hdl.handle.net/2324/4737399

  • Microbiological redox potential control to improve the efficiency of chalcopyrite bioleaching Reviewed International journal

    Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Geomicrobiology Journal   35 ( 8 )   648 - 656   2018.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： http://hdl.handle.net/2324/4737396

  • Silver-catalyzed bioleaching of enargite concentrate using moderately thermophilic microorganisms Reviewed International journal

    Keishi Oyama, Kazuhiko Shimada, Jun-ichiro Ishibashi, Hajime Miki, Naoko Okibe

    Hydrometallurgy   177   197 - 204   2018.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： http://hdl.handle.net/2324/4737398

  • Size-controlled production of gold bionanoparticles using the extremely acidophilic Fe(III)-reducing bacterium, Acidocella aromatica Reviewed International journal

    Intan Nurul Rizki, Naoko Okibe

    Minerals   8 ( 81 )   1 - 11   2018.2

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： http://hdl.handle.net/2324/4737405

  • Factors to enable crystallization of environmentally stable bioscorodite from dilute As(III)-contaminated waters Reviewed International journal

    Masahito Tanaka, Naoko Okibe

    Minerals   8 ( 23 )   1 - 16   2018.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： http://hdl.handle.net/2324/4737404

  • Palladium bionanoparticles production from acidic Pd(II) solutions and spent catalyst leachate using acidophilic Fe(III)-reducing bacteria. Reviewed International journal

    Naoko Okibe, Daisuke Nakayama, Takahiro Matsumoto

    Extremophiles : life under extreme conditions   21 ( 6 )   1091 - 1100   2017.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s00792-017-0969-4

  • Optimization of bioscorodite crystallization for treatment of As(III)-bearing wastewaters Reviewed International journal

    Masahito Tanaka, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Solid State Phenomena   262   555 - 558   2017.8

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Microbiological As(III) oxidation and immobilization as scorodite at moderate temperatures Reviewed International journal

    Yuta Era, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Solid State Phenomena   262   664 - 667   2017.8

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Manganese removal from metal refinery wastewater using Mn(II)-oxidizing bacteria Reviewed International journal

    Santisak Kitjanukit, Kyohei Takamatsu, Kenji Takeda, Satoshi Asano, Naoko Okibe

    Solid State Phenomena   262   673 - 676   2017.8

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Mechanism of silver-catalyzed bioleaching of enargite concentrate Reviewed International journal

    Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Solid State Phenomena   262   273 - 276   2017.8

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Bioscorodite crystallization using Acidianus brierleyi: Effects caused by Cu(II) present in As(III)-bearing copper refinery wastewaters Reviewed

    Naoko Okibe, Shiori Morishita, Masahito Tanaka, Keiko Sasaki, Tsuyoshi Hirajima, Kazuhiro Hatano, Atsuko Ohata

    Hydrometallurgy   168   121 - 126   2017.3

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    Bioscorodite crystallization using Acidianus brierleyi: Effects caused by Cu(II) present in As(III)-bearing copper refinery wastewaters
    © 2016 Elsevier B.V. This study investigated the effect caused by Cu(II) in synthetic As(III)-bearing copper refinery wastewaters, on microbial scorodite (FeAsO4·2H2O) formation using the thermo-acidophilic Fe(II)- and As(III)-oxidizing archaeon, Acidianus brierleyi. Microbial Fe(II) oxidation and cell growth became only marginal in the presence of 8–16 mM Cu(II), with its As(III) oxidation ability being severely inhibited. Consequently, scorodite formation was disabled by Cu(II) addition. However, feeding scorodite seed crystals readily alleviated Fe(II)- and As(III)-oxidation ability of Ac. brierleyi at 8 mM Cu(II), forming crystalline scorodite within 24 days in shake flasks. Zeta potential analysis indicated cell attachment to the scorodite seed crystal surface, implying its role in providing the immediate support for microbial colonization and enabling more robust microbial reactions. Most of Cu(II) was neither adsorbed nor co-precipitated and remained in the solution phase during scorodite crystallization, with or without the presence of seed crystals. Addition of seed crystals at 0.015, 0.03, 0.075 and 0.15% resulted in As immobilization of 96, 97, 97 and 98%, respectively, by day 24. This study demonstrated that despite of its inhibitory effect on Ac. brierleyi cells, scorodite can still be crystallized in the presence of Cu(II) by feeding scorodite seeds from synthetic copper refinery As(III)-bearing wastewaters.

    DOI： 10.1016/j.hydromet.2016.07.003

  • Microbial community profiling of the Chinoike Jigoku ("Blood Pond Hell") hot spring in Beppu, Japan: isolation and characterization of Fe(III)-reducing Sulfolobus sp. strain GA1. Reviewed International journal

    Yusei Masaki, Katsutoshi Tsutsumi, Shin-Ichi Hirano, Naoko Okibe

    Research in Microbiology   167 ( 7 )   595 - 603   2016.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.resmic.2016.04.011

  • Microbial recovery of vanadium by the acidophilic bacterium, Acidocella aromatica. Reviewed International journal

    Naoko Okibe, Masashi Maki, Daisuke Nakayama, Keiko Sasaki

    Biotechnology Letters   38 ( 9 )   1475 - 81   2016.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s10529-016-2131-2

  • “Bioscorodite crystallization using Acidianus brierleyi: Effects caused by Cu(II) present in As(III)-bearing copper refinery wastewaters.” Reviewed International journal

    Naoko Okibe, Shiori Morishita, Masahito Tanaka, Keiko Sasaki, Tsuyoshi Hirajima, Kazuhiro Hatano, Atsuko Ohata

    Hydrometallurgy   ( 168 )   121 - 126   2016.7

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Comparison of atmospheric citric acid leaching kinetics of nickel from different Indonesian saprolitic ores Reviewed

    Astuti Widi, Hirajima Tsuyoshi, Sasaki Keiko, Okibe Naoko

    HYDROMETALLURGY   161   138 - 151   2016.5

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    Language：Others   Publishing type：Research paper (scientific journal)  

    Comparison of atmospheric citric acid leaching kinetics of nickel from different Indonesian saprolitic ores
    © 2016 Elsevier B.V. All rights reserved. Saprolitic ores from Sulawesi Island (SS ore) contain serpentine and goethite as major minerals, whereas the main minerals in saprolitic ore from Halmahera Island (SH ore) are talc and goethite. Most of the nickel was incorporated in a magnesium-silica-containing mineral. The effects on nickel extraction of leaching temperature, citric acid concentration, and ore particle size were determined to investigate the leaching performances and leaching kinetics of the two saprolitic ores. Nickel leaching efficiency from SS ore is always higher than that from SH ore under the same leaching conditions. The mineral contents of the ores significantly affected the leaching performances and mineral dissolution behaviors of the samples. The results of nickel leaching efficiency and analysis of the solid residues suggest that all dissolved nickel originated from serpentine, which is more easily leached than goethite and talc. The rate of nickel extraction for SS ore was faster than that for SH ore. Nickel leaching from SS ore and SH ore followed the shrinking-core model and was controlled by diffusion of a reactant or product through the solid product layer.

    DOI： 10.1016/j.hydromet.2015.12.015

  • Suppression of pyrite oxidation in acid mine drainage by carrier microencapsulation using liquid product of hydrothermal treatment of low-rank coal, and electrochemical behavior of resultant encapsulating coatings Reviewed

    Yuniati Mutia Dewi, Kitagawa Keitaro, Hirajima Tsuyoshi, Miki Hajime, Okibe Naoko, Sasaki Keiko

    HYDROMETALLURGY   158   83 - 93   2015.12

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    Suppression of pyrite oxidation in acid mine drainage by carrier microencapsulation using liquid product of hydrothermal treatment of low-rank coal, and electrochemical behavior of resultant encapsulating coatings
    © 2015 Elsevier B.V. Pyrite is a mineral sulfide found extensively in acid mine drainage; this is one of the most serious environmental problems in the mining industry. Suppression of pyrite oxidation via carrier microencapsulation (CME) with silicon (Si) and organic carriers has been proposed. In the present study, use of the hydrothermal treatment liquid (HTL) produced from low-rank coal as a carrier in CME was investigated. In dissolution tests for 51 days with pyrite and iron-oxidizing bacteria, treatment with a mixture of HTL and a silicon reagent (Si-HTL) lowered the ferric ion concentration and limited bacterial attachment compared with untreated pyrite. This might be caused by catechol present in the HTL. A mixture of catechol and a silicon reagent (Si-Cat) was also used, and the coatings obtained using Si-HTL and Si-Cat were compared. The electrochemical behavior of the treated pyrite samples showed oxidative decomposition of the Si-Cat complex and formation of an encapsulating layer at 690 mV for Si-HTL and 550 mV for Si-Cat. The two semi-circular curves in the Nyquist plot simulations showed that the total impedances of the treated pyrite samples increased. Microscopic observations showed that the oxidative layer was silica rich. These data indicate that a silica-quinone coating is created and the pyrite oxidation rate can be suppressed by pretreatment with either Si-HTL or Si-Cat for 1 h.

    DOI： 10.1016/j.hydromet.2015.09.028

  • “Microbial community structure analysis of Blood Pond Hell hot spring in Japan and search for metal-reducing microbes.” Reviewed International journal

    Yusei Masaki, Shin-ichi Hirano, Naoko Okibe

    Advanced Materials Research   1130   45 - 49   2015.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.4028/www.scientific.net/AMR.1130.45

  • “Utilization of metabolic citric acid from Aspergillus niger using corn starch in the nickel leaching of Indonesian saprolitic ore.” Reviewed International journal

    Widi Astuti, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Advanced Materials Research   1130   251 - 254   2015.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.4028/www.scientific.net/AMR.1130.251

  • “Effect of Cu(II) on bio-scorodite crystallization using Acidianus brierleyi.” Reviewed International journal

    Naoko Okibe, Shiori Morishita, Masahito Tanaka, Tsuyoshi Hirajima, Keiko Sasaki

    Advanced Materials Research   1130   101 - 104   2015.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.4028/www.scientific.net/AMR.1130.101

  • Kinetics of nickel extraction from Indonesian saprolitic ore by citric acid leaching under atmospheric pressure Reviewed

    W. Astuti, T. Hirajima, K. Sasaki, N. Okibe

    Minerals and Metallurgical Processing   32 ( 3 )   176 - 185   2015.8

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    Language：Others   Publishing type：Research paper (scientific journal)  

  • Biooxidation of Gold-, Silver, and Antimony- Bearing Highly Refractory Polymetallic Sulfide Concentrates, and its Comparison with Abiotic Pretreatment Techniques Reviewed

    Tanaka Masahito, Yamaji Yuta, Fukano Yuken, Shimada Kazuhiko, Ishibashi Jun-Ichiro, Hirajima Tsuyoshi, Sasaki Keiko, Sawada Mitsuru, Okibe Naoko

    GEOMICROBIOLOGY JOURNAL   32 ( 6 )   538 - 548   2015.7

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    Biooxidation of Gold-, Silver, and Antimony-Bearing Highly Refractory Polymetallic Sulfide Concentrates, and its Comparison with Abiotic Pretreatment Techniques
    © 2015, Copyright © Taylor & Francis Group, LLC. Effectiveness of different pure and mixed cultures of three moderately thermophilic, extremely acidophilic bacterial strains (Acidimicrobium ferrooxidans ICP, Sulfobacillus sibiricus N1, Acidithiobacillus caldus KU) were investigated for biooxidation of highly refractory polymetallic gold ore concentrates. Despite of its complex mineralogy and the presence of a mixture of potentially inhibitory metals and metalloids, the concentrate was readily dissolved in defined mixed cultures including both iron and sulfur oxidizers, releasing as much as 80% of soluble Fe and 61% of soluble As. Factors to affect microbial mineral dissolution efficiencies (i.e. microbial As(III) oxidation ability, formation of secondary mineral precipitation (e.g. jarosite, elemental sulfur, scorodite, anglesite), and microbial population dynamics during biooxidation) were studied, based on which roles of individual microbes and their synergistic interactions during biooxidation were discussed. Applying the biooxidation pretreatment using the most efficient mixed cultures containing all three strains significantly improved the recovery of both Au (from 1.1% to 86%) and Ag (from 3.2% to 87%). Finally, this study provides one of the very few available comparisons of the effectiveness of different pretreatment techniques for refractory gold ore concentrates: Compared with other abiotic pretreatment approaches (roasting, pressure oxidation, and alkali dissolution), biooxidation was shown to be one of the most effective options in terms of the recovery of Au and Ag.

    DOI： 10.1080/01490451.2014.981645

  • “Selenium (Se) removal from copper refinery wastewater using a combination of zero-valent iron (ZVI) and Se(VI)-reducing bacterium, Thaurea selenatis.” Reviewed International journal

    Naoko Okibe, Kiyomasa Sueishi, Mikoto Koga, Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Shinichi Heguri, Satoshi Asano

    Materials Transactions   56 ( 6 )   889 - 894   2015.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.2320/matertrans.M2014457

  • Bioreduction and immobilization of hexavalent chromium by the extremely acidophilic Fe(III)-reducing bacterium Acidocella aromatica strain PFBC. Reviewed International journal

    Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Extremophiles : life under extreme conditions   19 ( 2 )   495 - 503   2015.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s00792-015-0733-6

  • Speciation of arsenic in a thermoacidophilic iron-oxidizing archaeon, Acidianus brierleyi, and its culture medium by inductively coupled plasma-optical emission spectroscopy combined with flow injection pretreatment using an anion-exchange mini-column. Reviewed International journal

    Naoki Higashidani, Takashi Kaneta, Nobuyuki Takeyasu, Shoji Motomizu, Naoko Okibe, Keiko Sasaki

    Talanta   122   240 - 5   2014.5

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    DOI： 10.1016/j.talanta.2014.01.057

  • Microbial formation of crystalline scorodite for treatment of As(III)-bearing copper refinery process solution using Acidianus brierleyi Reviewed

    Okibe Naoko, Koga Masaharu, Morishita Shiori, Tanaka Masahito, Heguri Shinichi, Asano Satoshi, Sasaki Keiko, Hirajima Tsuyoshi

    HYDROMETALLURGY   143   34 - 41   2014.3

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    Microbial formation of crystalline scorodite for treatment of As(III)-bearing copper refinery process solution using Acidianus brierleyi
    Scorodite (FeAsO4·2H2O) is a thermodynamically stable mineral with advantages as an arsenic disposal compound. With an aim to immobilize highly toxic As(III) contained in the copper refinery process solution, eventually in the form of crystalline scorodite, the use of thermo-acidophilic iron-oxidizing archaeon, Acidianus brierleyi, was investigated. The extent of As(III) oxidation by Ac. brierleyi became greater at elevated culture As(III) concentrations, especially in the presence of yeast extract. Microbial growth on yeast extract was also implied to facilitate As(III) oxidation by Fe(III) on cell surface. When the initial Fe(II)/As(III) ratio was set at 1.4 in the presence of yeast extract, both ions were readily oxidized and 86-100% of As was precipitated as crystalline scorodite. The molar ratio of microbially-oxidized Fe(II) and As(III) was an important factor to determine the type of the secondary mineral formed. Phosphate concentration was another critical factor for scorodite biomineralization. Biogenic scorodite was crystallized with almond-shaped polyhedron habit of 1 μm in size. This study demonstrates the applicability of a one-step bioprocess which enables treatment of As(III)-bearing copper refinery process solution by producing biogenic crystalline scorodite. © 2014 Elsevier B.V.

    DOI： 10.1016/j.hydromet.2014.01.008

  • pCGR2 copy number depends on the par locus that forms a ParC-ParB-DNA partition complex in Corynebacterium glutamicum. Reviewed International journal

    Naoko Okibe, Nobuaki Suzuki, Masayuki Inui, Hideaki Yukawa

    Journal of Applied Microbiology   115 ( 2 )   495 - 508   2013.8

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    DOI： 10.1111/jam.12257

  • “Simultaneous oxidation and immobilization of arsenite from refinery waste water by thermoacidophilic iron-oxidizing archaeon, Acidianus brierleyi” Reviewed International journal

    Naoko Okibe, Masaharu Koga, Keiko Sasaki, Tsuyoshi Hirajima, Shinichi Heguri, Satoshi Asano

    Minerals Engineering   48   126 - 134   2013.7

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  • “Mn(II)-oxidizing activity of Pseudomonas sp. strain MM1 is involved in the formation of massive Mn sediments around Sambe hot springs in Japan” Reviewed International journal

    Naoko Okibe, Masashi Maki, Keiko Sasaki, Tsuyoshi Hirajima

    Materials Transactions   54   2027 - 2031   2013.7

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  • Geochemical and Microbiological Analysis of Sambe Hot Springs, Shimane Prefecture, Japan Reviewed

    Sasaki Keiko, Uejima Yoshitaka, Sakamoto Atsushi, Yu Qianqian, Ishibashi Junichiro, Okibe Naoko, Hirajima Tsuyoshi

    RESOURCE GEOLOGY   63 ( 2 )   155 - 165   2013.4

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    Geochemical and Microbiological Analysis of Sambe Hot Springs, Shimane Prefecture, Japan
    Microbiological contribution to the formation of the manganese deposits in Sambe hot springs, Shimane, was investigated in combination with water chemistry, characterization of sediments and microbial community structure. Analysis of bacterial and fungal community structure based on DNA extracted from a Mn-oxidizing enrichment culture indicated close matches with Pseudomonas putida, Phoma sp. and Plectosphaerella cucumerina, all Mn-oxidizing microorganisms. These sediments were poorly crystalline and formed at neutral pH values, which is characteristic of biogenic precipitates. The EPMA results demonstrated a positive correlation between Mn and Ba contents in well-crystalline Mn oxide grains. Substantial Ba contents were observed inside Mn oxide grains. These findings indicated that Ba contents in sediments are influenced by not only aqueous Ba2+ concentrations but also crystallinity of biogenic birnessite. Barium would be incorporated in birnessite during biomineralization. © 2013 The Society of Resource Geology.

    DOI： 10.1111/rge.12002

  • Effect of microorganisms on flocculation of quartz Reviewed

    Hirajima Tsuyoshi, Aiba Yuki, Farahat Mohsen, Okibe Naoko, Sasaki Keiko, Tsuruta Takehiko, Doi Katsumi

    INTERNATIONAL JOURNAL OF MINERAL PROCESSING   102-103   107 - 111   2012.1

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    Language：Others   Publishing type：Research paper (scientific journal)  

    Effect of microorganisms on flocculation of quartz
    Application of microorganisms as surface modifiers in flocculation has generated a great deal of interest in recent times. The surface properties such as zeta-potential and hydrophobicity of minerals and microorganisms play a major role in determining the adsorption of microorganisms onto the minerals and hence the efficiency of flocculation. The utility of microorganisms, including Escherichia coli (wild-type and genetically modified strain Sip), Arthrobacter nicotianae, Bacillus licheniformis, and Pseudomonas maltophilia, has been evaluated by measuring their zeta-potentials and carrying out adsorption and flocculation experiments. Of the tested microorganisms, adsorption of E. coli strain Sip significantly modified the quartz surface. The zeta-potential of the quartz became highly positive at acidic pH, and its IEP (isoelectric point) was shifted from pH < 2 to pH 4.3. Moreover, the settling velocity of the bio-treated quartz reached its maximum value at this pH. The number of cells adsorbed onto quartz was low at pH above the IEP due to the identical surface charges of the mineral and bacterial cells. This led to a repulsive force between the mineral particles and bacterial cells, which hindered the adsorption process. For all of the studied strains, the settling velocity of bio-treated quartz was high at their respective IEPs. An interaction model of microorganisms is proposed to explain the flocculation behavior of bio-treated quartz. Potential energies were calculated using the DLVO theory, and the results were found to be in good agreement with the flocculation tests. The settling velocity of the bio-treated quartz was maximized at pH close to the IEP of microbial cells. Interaction between cells is identified as the most likely cause of flocculation of bio-treated quartz. © 2011 Elsevier B.V. All rights reserved.

    DOI： 10.1016/j.minpro.2011.10.001

  • “Flocculation of quarts by microorganisms” International journal

    T Hirajima, Y Aiba, M Farahat, N Okibe, K Sasaki, T Tsuruta, K Doi

    Biohydrometallurgy; biotech key to unlock mineral resources value (G Qiu, T. jiang, W. Qin, X. Liu, Y. Tang and H. Wang eds). Central South University, Changsha, China   2011.9

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  • “Immobilization of arsenite from the refining discharge using Acidianus brierleyi in the presence of pyrite.” International journal

    K Sasaki, M Koga, K Takatsugi, N Okibe, T Hirajima, S Asano, S Heguri

    Biohydrometallurgy; biotech key to unlock mineral resources value (G Qiu, T. jiang, W. Qin, X. Liu, Y. Tang and H. Wang eds). Central South University, Changsha, China   2011.9

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  • A rapid ATP-based method for determining active microbial populations in mineral leach liquors Reviewed

    Okibe Naoko, Johnson D. Barrie

    HYDROMETALLURGY   108 ( 3-4 )   195 - 198   2011.7

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    A rapid ATP-based method for determining active microbial populations in mineral leach liquors
    An empirical technique for the rapid assessment of active biomass of acidophilic microorganisms in pure cultures and in leach liquors from mineral bio-processing operations is described. The method is based on the measurement of ATP concentrations in test solutions, using commercially-available kits and a portable luminometer. The ATP contents of five Gram-negative biomining bacteria mineral-degrading acidophiles assayed varied from 0.87 × 10-20 to 18 × 10-20 mol per cell in actively-growing cultures. Depletion of ferrous iron in cultures of a strain of Leptospirillum ferriphilum resulted in rapid mortality of the iron-oxidizing bacterium (denoted by decreasing numbers of plate isolates) and corresponding changes in ATP concentrations in culture aliquots. The technique was applied successfully to mineral leachates from stirred tank biomining operations, where it was shown to determine populations of active microorganisms in liquors where most of the cells present were not viable. The method is highly sensitive (detecting as few as 103 acidophiles ml-1 of test solution) and would therefore have generic application in monitoring microbial populations in other types of biomining operations, such as heap bioreactors. © 2011 Elsevier B.V. All rights reserved.

    DOI： 10.1016/j.hydromet.2011.04.008

  • Efficient markerless gene replacement in Corynebacterium glutamicum using a new temperature-sensitive plasmid. Reviewed International journal

    Okibe N, Suzuki N, Inui M, Yukawa H

    Journal of microbiological methods   85 ( 2 )   155 - 163   2011.5

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    Efficient markerless gene replacement in Corynebacterium glutamicum using a new temperature-sensitive plasmid
    Random chemical mutation of a Corynebacterium glutamicum- Escherichia coli shuttle vector derived from plasmid pCGR2 was done using hydroxylamine. It brought about amino acid substitutions G109D and E180K within the replicase superfamily domain of the plasmid's RepA protein and rendered the plasmid highly unstable, especially at higher incubation temperatures. Colony formation of C. glutamicum was consequently completely inhibited at 37°C but not at 25°C. G109 is a semi-conserved residue mutation which resulted in major temperature sensitivity. E180 on the other hand is not conserved even among RepA proteins of closely related C. glutamicum pCG1 family plasmids and its independent mutation caused relatively moderate plasmid instability. Nonetheless, simultaneous mutation of both residues was required to achieve temperature-sensitive colony formation. This new pCGR2-derived temperature-sensitive plasmid enabled highly efficient chromosomal integration in a variety of C. glutamicum wild-type strains, proving its usefulness in gene disruption studies. Based on this, an efficient markerless gene replacement system was demonstrated using a selection system incorporating the temperature-sensitive replicon and Bacillus subtilis sacB selection marker, a system hitherto not used in this bacterium. Single-crossover integrants were accurately selected by temperature-dependent manner and 93% of the colonies obtained by the subsequent sucrose selection were successful double-crossover recombinants. © 2011 Elsevier B.V.

    DOI： 10.1016/j.mimet.2011.02.012

  • Antisense-RNA-mediated plasmid copy number control in pCG1-family plasmids, pCGR2 and pCG1, in Corynebacterium glutamicum. Reviewed International journal

    Naoko Okibe, Nobuaki Suzuki, Masayuki Inui, Hideaki Yukawa

    Microbiology   156 ( Pt 12 )   3609 - 3623   2010.12

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    DOI： 10.1099/mic.0.043745-0

  • Isolation, evaluation and use of two strong, carbon source-inducible promoters from Corynebacterium glutamicum Reviewed

    N. Okibe, N. Suzuki, M. Inui, Hideaki Yukawa

    Letters in Applied Microbiology   50 ( 2 )   173 - 180   2010.2

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    DOI： 10.1111/j.1472-765X.2009.02776.x

  • Ferrimicrobium acidiphilum gen. nov., sp. nov. and Ferrithrix thermotolerans gen. nov., sp. nov.: heterotrophic, iron-oxidizing, extremely acidophilic actinobacteria. Reviewed International journal

    D Barrie Johnson, Paula Bacelar-Nicolau, Naoko Okibe, Angharad Thomas, Kevin B Hallberg

    International Journal of Systematic and Evolutionary Microbiology   59 ( Pt 5 )   1082 - 9   2009.5

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    DOI： 10.1099/ijs.0.65409-0

  • Identification of new secreted proteins and secretion of heterologous amylase by C. glutamicum. Reviewed International journal

    Nobuaki Suzuki, Keiro Watanabe, Naoko Okibe, Yoshiki Tsuchida, Masayuki Inui, Hideaki Yukawa

    Applied Microbiology and Biotechnology   82 ( 3 )   491 - 500   2009.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s00253-008-1786-6

  • Scanning the Corynebacterium glutamicum R genome for high-efficiency secretion signal sequences. Reviewed International journal

    Keiro Watanabe, Yoshiki Tsuchida, Naoko Okibe, Haruhiko Teramoto, Nobuaki Suzuki, Masayuki Inui, Hideaki Yukawa

    Microbiology   155 ( Pt 3 )   741 - 750   2009.3

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    DOI： 10.1099/mic.0.024075-0

  • Effect of temperature on the bioleaching of chalcopyrite concentrates containing different concentrations of silver Reviewed

    Johnson D. Barrie, Okibe Naoko, Wakeman Kathryn, Yajie Liu

    HYDROMETALLURGY   94 ( 1-4 )   42 - 47   2008.11

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    Effect of temperature on the bioleaching of chalcopyrite concentrates containing different concentrations of silver
    The primary copper sulfide mineral chalcopyrite (CuFeS2) is recalcitrant to both chemical and biological leaching, due to the supposed passivation of the mineral surface by sulfur and/or ferric iron compounds. Previous work has shown that addition of soluble silver can enhance solubilisation of copper from chalcopyrite by acidophilic bacteria. Silver may also be present in the concentrate itself. Here we describe the bioleaching of chalcopyrite concentrates with silver contents varying from < 1 to 1500 g/t by consortia of thirteen species of mesophilic bacteria and eleven species of moderately thermophilic acidophiles in shake flask cultures incubated at between 30 °C and 45 °C. The compositions of the microbial consortia that established in each culture were determined using a combined cultivation-based and biomolecular approach. The most effective solubilisation of copper from the 1500 and 800 g/t Ag-concentrates occurred at 30 °C, while concentrates that contained < 1 and 26 g/t of silver displayed the opposite (and predicted) pattern of mineral dissolution increasing with incubation temperature. The type strain of Acidithiobacillus ferrooxidans was the sole dominant iron-oxidising autotroph in the 800 and 1500 g/t silver concentrates, and was present in similar numbers to Leptospirillum ferrooxidans in the < 1 and 26 g/t silver concentrates, leached at 30 °C. Obligate and facultatively heterotrophic acidophiles (e.g. Acidiphilium and Gram-positive acidophiles) were also usually present, but in much smaller numbers. In contrast, at 45 °C the dominant (or sole) bacterium present at day 30 was the iron/sulfur-oxidising mixotroph Sulfobacillus thermosulfidooxidans. Sulfobacillus spp. also tended to dominate cultures incubated at 37 °C, although other bacteria, including At. ferrooxidans, were present in some mineral leachates. Highly efficient dissolution of copper (76 to > 98% over 30 days) from the 1500 g/t chalcopyrite concentrate at 30 °C was achieved using pure and mixed cultures of At. ferrooxidans. The results indicated that chalcopyrite concentrates that contain significant concentrations of silver are highly amenable to bioleaching at relatively low temperatures, using well-known acidophilic micro-organisms. © 2008 Elsevier B.V. All rights reserved.

    DOI： 10.1016/j.hydromet.2008.06.005

  • "Bioshrouding": a novel approach for securing reactive mineral tailings. Reviewed International journal

    D Barrie Johnson, Liu Yajie, Naoko Okibe

    Biotechnology Letters   30 ( 3 )   445 - 9   2008.3

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    DOI： 10.1007/s10529-007-9574-4

  • Attachment of acidophilic bacteria to solid surfaces: The significance of species and strain variations Reviewed

    Ghauri M. Afzal, Okibe Naoko, Johnson D. Barrie

    HYDROMETALLURGY   85 ( 2-4 )   72 - 80   2007.3

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    Attachment of acidophilic bacteria to solid surfaces: The significance of species and strain variations
    Sixteen strains of acidophilic bacteria were screened for their abilities to adhere to pyrite ore, glass beads and ferric hydroxysulfates. These were three culture collection and two isolated strains of the iron- and sulfur-oxidizer, Acidithiobacillus ferrooxidans, two each of the sulfur-oxidizer Acidithiobacillus thiooxidans and the iron-oxidizer Leptospirillum ferrooxidans (the type strain and a mine isolate in either case), five heterotrophic acidophiles (four Acidiphilium and one Acidocella sp.) and two moderately thermophilic iron/sulfur-oxidizers (Sulfobacillus thermosulfidooxidans and Sulfobacillus acidophilus). Considerable variations were found between different species of acidophiles, and also between different strains of the same species, in how they attached to the three solid materials tested. Attachment to the solid substrata generally increased with time (over 100 min) though > 99% of one At. ferrooxidans isolate (strain OP14) were attached to pyrite after just 10 min exposure. Most acidophiles attached more readily to pyrite than to glass beads, and attachment to ferric hydroxysulfates was highly variable, though one At. ferrooxidans isolate (strain SJ2) and one heterotrophic acidophile (Acidocella sp. het-4) both attached strongly to ferric iron precipitates (jarosites and schwertmannite) that formed in cultures of At. ferrooxidans grown at pH > 2. The results of these experiments showed that even closely related strains of acidophilic bacteria can display very different propensities to attach to solid materials, an observation that may explain the somewhat disparate results reported on occasions by research groups that have examined single, or limited numbers of strains, of acidophiles (mostly At. ferrooxidans). The significance of differential attachment of mineral-oxidizing and other acidophiles to pyrite and other solids is discussed in the context of biohydrometallurgy. © 2006 Elsevier B.V. All rights reserved.

    DOI： 10.1016/j.hydromet.2006.03.016

  • Erratum: Differentiation and identification of iron-oxidizing acidophilic bacteria using cultivation techniques and amplified ribosomal DNA restriction enzyme analysis (Journal of Microbiological Methods (2005) 60 (299-313) DOI: 10.1016/j.mimet.2004.10.002) Reviewed

    D. Barrie Johnson, Naoko Okibe, Kevin B. Hallberg

    Journal of Microbiological Methods   63 ( 2 )   216 - 217   2005.11

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    DOI： 10.1016/j.mimet.2005.07.016

  • Differentiation and identification of iron-oxidizing acidophilic bacteria using cultivation techniques and amplified ribosomal DNA restriction enzyme analysis. Reviewed International journal

    D Barrie Johnson, Naoko Okibe, Kevin B Hallberg

    Journal of Microbiological Methods   60 ( 3 )   299 - 313   2005.3

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    DOI： 10.1016/j.mimet.2004.10.002

  • “Bioleaching of pyrite by defined mixed populations of moderately thermophilic acidophiles in pH-controlled bioreactors.” International journal

    N Okibe, DB Johnson

    Biohydrometallurgy; a sustainable technology in evolution (Tsezos, M., Hatzikioseyian, A. and Remoudaki, E., eds.). National Technical University of Athens, Zografou, Greece   2004.9

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  • Biooxidation of pyrite by defined mixed cultures of moderately thermophilic acidophiles in pH-controlled bioreactors: significance of microbial interactions. Reviewed International journal

    Naoko Okibe, D Barrie Johnson

    Biotechnology and Bioengineering   87 ( 5 )   574 - 83   2004.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/bit.20138

  • Novel thermo-acidophilic bacteria isolated from geothermal sites in Yellowstone National Park: physiological and phylogenetic characteristics. Reviewed International journal

    D Barrie Johnson, Naoko Okibe, Francisco F Roberto

    Archives of Microbiology   180 ( 1 )   60 - 8   2003.7

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    DOI： 10.1007/s00203-003-0562-3

  • Enumeration and characterization of acidophilic microorganisms isolated from a pilot plant stirred-tank bioleaching operation. Reviewed International journal

    Naoko Okibe, Mariekie Gericke, Kevin B Hallberg, D Barrie Johnson

    Applied and Environmental Microbiology   69 ( 4 )   1936 - 43   2003.4

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    DOI： 10.1128/AEM.69.4.1936-1943.2003

  • Toxicity of flotation reagents to moderately thermophilic bioleaching microorganisms Reviewed

    Naoko Okibe, D. Barrie Johnson

    Biotechnology Letters   24 ( 23 )   2011 - 2016   2002.12

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    Language：Others   Publishing type：Research paper (scientific journal)  

    DOI： 10.1023/A:1021118915720

  • “Role of pure and mixed cultures of Gram-positive eubacteria in mineral leaching.” International journal

    DB Johnson, P Bacelar-Nicolau, N Okibe, A Yahya, KB Hallberg

    Biohydrometallurgy:　Fundamentals, Technology and Sustainable Development. (Ciminelli, V. S. T. and Garcia Jr., O., eds.) Amsterdam, Elsevier   11A   2001.9

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  • “Bioleaching of pyrite by defined mixed cultures of moderately thermophilic acidophiles.” International journal

    N Okibe, DB Johnson

    Biohydrometallurgy: Fundamentals,　Technology and Sustainable Development. (Ciminelli, V. S. T. and Garcia Jr., O., eds.) Amsterdam, Elsevier   11A   2001.9

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  • “Gene cloning and characterization of aldehyde dehydrogenase from a petroleum-degrading bacterium, strain HD-1.” Reviewed International journal

    N Okibe, K Amada, S Hirano, M Haruki, T Imanaka, M Morikawa, S Kanaya

    Journal of Bioscience and Bioengineering   88 ( 1 )   1999.7

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  • The influence of amino acid side chain structure on the leaching behavior of copper from printed circuit boards

    Phann, I; Yamamoto, S; Shubair, T; Okibe, N

    HYDROMETALLURGY   234   2025.6   （ ISSN:0304-386X eISSN:1879-1158 ）

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    Publisher：Hydrometallurgy  

    This study evaluated the potential of 15 biological amino acids as eco-friendly lixiviants for copper (Cu) extraction from printed circuit boards (PCBs) under alkaline conditions. The Cu leaching behaviors, complexation mechanisms, and the effect of temperature were examined. The amino acids were classified by their Cu leaching efficiencies: Type-I (Gly, Val, Ala, Arg, His, Lys), Type-II (Pro, Glu, Asp, Thr, Ser), and Type-III (Asn, Gln, Met, Cys). Type-I amino acids achieved >90 % Cu leaching, while Type-II showed moderate dissolution. Type-III formed solid Cu-amino acid complexes as confirmed by XRD and SEM analyses. Increasing temperatures enhanced Cu leaching in both Type-I and Type-II, particularly during the initial stages. Minimal dissolution of aluminum (Al) and iron (Fe) was observed at pH 10–12 and Eh 0–200 mV, allowing for selective Cu dissolution in liquid or solid phases. Aliphatic and polar positively charged amino acids were the most effective due to their ability to form stable bi- and/or tridentate complexes, while carboxyl- and alcohol-containing side chains hindered Cu dissolution. The precipitation of solid Cu-amino acid complexes was attributed to amide and sulfur-containing side chains, as nitrogen, oxygen, and sulfur can form strong coordination bonds with Cu. This is the first study to evaluate the role of amino acid side chain structures in Cu leaching from e-waste and highlights the potential of less commonly studied amino acids in hydrometallurgical applications.

    DOI： 10.1016/j.hydromet.2025.106469

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  • Effect of oxalic acid on the selective flotation separation of Pb-activated sphalerite from galena

    Eladl, DA; Suyantara, GPW; Miki, H; Ulmaszoda, A; Okibe, N

    ADVANCED POWDER TECHNOLOGY   36 ( 4 )   2025.4   （ ISSN:0921-8831 eISSN:1568-5527 ）

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    Publisher：Advanced Powder Technology  

    The separation of sphalerite (ZnS) and galena (PbS) is challenging owing to activation of the sphalerite surface by unavoidable metal ions, such as lead ions (Pb2+) released from lead-containing minerals. In this study, oxalic acid (OA) was applied for the first time as an environmentally friendly reagent to deactivate the sphalerite surface in lead–zinc (Pb-Zn) flotation separation. Micro-flotation experiments showed that OA, at a concentration of 0.56 mM, significantly reduced sphalerite recovery. Single-mineral flotation tests demonstrated that sphalerite recovery decreased to 20 %, while galena recovery remained at 58.7 % after OA treatment. Further flotation tests on an artificial mixture of sphalerite and galena confirmed effective separation with OA treatment under mildly alkaline conditions, achieving recoveries of 83 % for galena and 17 % for sphalerite. Infrared spectroscopy and X-ray photoelectron spectroscopy analyses showed that OA removes Pb2+ ions from the surface of sphalerite by forming lead oxalate (Pb(II)-Ox) precipitates, which detach from the sphalerite surface, effectively cleaning it. This detachment prevents the adsorption of potassium amyl xanthate (PAX) by forming a dispersed lead oxalate-amyl xanthate (PbOx-AX) complex, which exposes the hydrophilic sphalerite surface and leads to its depression. In contrast, this interaction had a minimal impact on the floatability of galena.

    DOI： 10.1016/j.apt.2025.104818

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  • Selective depression of copper-activated pyrite by oxalic acid: Implications for enhanced chalcopyrite-pyrite separation

    Suyantara, GPW; Ulmaszoda, A; Miki, H; Eladl, DA; Sasaki, K; Okibe, N

    POWDER TECHNOLOGY   454   2025.3   （ ISSN:0032-5910 eISSN:1873-328X ）

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    Publisher：Powder Technology  

    The selective separation of pyrite (FeS2) and chalcopyrite (CuFeS2) in flotation processes poses significant challenges due to the activation of the pyrite surfaces by copper ions dissolved from associated copper sulfide minerals. This study proposes oxalic acid as an environment-friendly reagent to inhibit the copper-induced activation of pyrite. Chalcopyrite was used as a model mineral to evaluate the selectivity of oxalic acid treatment. The flotation experiments demonstrated that oxalic acid reduced the flotation recovery of copper-activated pyrite from 58 % to 16 % at pH 9 while exerting no discernible effect on chalcopyrite flotation. Further tests using artificial mixtures of chalcopyrite and pyrite confirmed the ability of oxalic acid to selectively separate chalcopyrite from copper-activated pyrite under mildly alkaline conditions, improving the separation efficiency from 30 % to 78 % with the addition of 15 kg/t (0.55 mM) oxalic acid at pH 9. The mechanism underlying this selectivity was investigated using infrared spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy. The results revealed that oxalic acid reacts with copper ions to form copper oxalate, which effectively prevents copper deposition on the pyrite surface. This reaction inhibits pyrite activation and suppresses the adsorption of xanthate collectors. These findings highlight the potential of oxalic acid as a sustainable reagent for enhancing the selectivity and efficiency of chalcopyrite–pyrite separation in flotation processes.

    DOI： 10.1016/j.powtec.2025.120681

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  • Extending the accessibility of catalytic active sites through <scp>l</scp>-cysteine assisted sulfidation for promoting the hydrogen evolution reaction

    Prince J. J. Sagayaraj, Kavinkumar S., Keishi Oyama, Naoko Okibe, Hyoung-il Kim, Karthikeyan Sekar

    Energy Advances   4 ( 2 )   296 - 303   2025.2   （ eISSN:2753-1457 ）

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    Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    We report a development in NiS catalysts using a simple hydrothermal method. The synthesized NiS exhibited a millerite phase and a pyrite phase, leading to improved HER (overpotential of 140 mV at −10 mA cm<sup>−2</sup> and Tafel slope of 112.3 mV dec<sup>−1</sup>).

    DOI： 10.1039/d4ya00578c

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  • Enhancing Biogenic Scorodite Formation Using Waste Iron Sludge: A Sustainable Approach for Arsenic Immobilization

    Kimura, K; Okibe, N

    MINERALS   15 ( 1 )   2025.1   （ eISSN:2075-163X ）

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    Publisher：Minerals  

    Arsenic (As) contamination in water poses significant environmental and health risks, particularly in mining regions. Scorodite (FeAsO4·2H2O) is a highly stable compound for As immobilization, traditionally synthesized under high As concentrations and extreme conditions, such as elevated temperatures and pressures. This study explores a sustainable alternative by utilizing Fe-sludge, a waste by-product from acid mine drainage (AMD) treatment, as a novel Fe source for biogenic scorodite formation mediated by the thermo-acidophilic archaeon Acidianus brierleyi. Through a systematic evaluation of Fe-sludge incorporation, the study investigates its impact on microbial activity, As immobilization efficiency, and scorodite crystallization mechanisms. Liquid and solid analyses demonstrate that Fe-sludge enhances the reaction rate and crystallinity of scorodite while bypassing the induction period required in Fe2+-only systems. Cross-sectional SEM imaging and EXAFS analysis reveal dynamic transformations on the Fe-sludge surface, supporting faster As adsorption and scorodite nucleation through Fe-S intermediates. Despite potential challenges to microbial activity at higher Fe-sludge concentrations, optimized conditions successfully balance cell viability and Fe utilization. This approach offers an eco-friendly, cost-effective pathway for As immobilization by repurposing AMD sludge, contributing to sustainable resource management and reducing environmental impact.

    DOI： 10.3390/min15010056

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  • Oxidation of As(III) and adsorption of As(V) using bioactive Mn- and Fe-sludge waste in a continuous dual-column system

    Liu, PY; Okibe, N

    JOURNAL OF WATER PROCESS ENGINEERING   69   2025.1   （ ISSN:2214-7144 ）

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    Publisher：Journal of Water Process Engineering  

    This study investigated the use of waste Mn- and Fe-sludges from abandoned mines in a continuous two-column system for the oxidative removal of As(III) from contaminated water. Batch tests revealed distinct functional roles of the sludges: Mn-sludge primarily catalyzed As(III) oxidation with limited As(V) adsorption capacity (3.1 mg/g), while Fe-sludge acted as the main adsorbent with a significantly higher As(V) adsorption capacity (58.8 mg/g). These results underline the complementary roles of the two sludges in the dual-column system. Over a period of 243 days, the system achieved over 99 % removal of As(III) from an influent concentration of 15 mg/L, consistently meeting the effluent standard of 0.1 mg/L at a hydraulic retention time (HRT) of ≥6 h. In the upper Mn column, microbial Mn oxidation prevented surface passivation and dynamically regenerated Mn oxide (birnessite), as reflected by an increase in the average Mn oxidation state (3.58 to 3.67). In the lower Fe-column, adsorbed As(V) remained stable, with toxicity characteristic leaching procedure (TCLP) results showing minimal As leachability (<0.96 μg/L) over 218 days, ensuring safe disposal. Notably, the system did not require additional carbon feed as the microbial community in the Mn-column provided sufficient bioactivity, while unexpected microbial activity in the Fe-column did not affect the overall results. This study highlights the potential of using waste Mn- and Fe-sludges, exploiting their microbial and mineralogical properties, as a cost-effective and sustainable method for As(III) remediation.

    DOI： 10.1016/j.jwpe.2024.106802

    Web of Science

    Scopus

  • Bioleaching of tennantite concentrate: influence of microbial community and solution redox potential

    Kondo, S; Hayashi, K; Phann, I; Okibe, N

    FRONTIERS IN MICROBIOLOGY   14   1339549   2024.1   （ ISSN:1664-302X eISSN:1664-302X ）

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    Language：English   Publisher：Frontiers in Microbiology  

    Despite its growing importance as a Cu resource, studies on tennantite bioleaching are highly limited. One of the key challenges in processing such Cu-As sulfides is their refractoriness and the solubilisation of toxic As. The ultimate goal is to achieve selective bioleaching of Cu with simultaneous immobilisation of As in the leach residues. This study investigated the effectiveness of activated carbon (AC)-assisted bioleaching of tennantite concentrate using a mixed culture containing various &amp;amp;amp;amp;amp;amp;amp;#x201C;strong&amp;amp;amp;amp;amp;amp;amp;#x201D; and &amp;amp;amp;amp;amp;amp;amp;#x201C;weak&amp;amp;amp;amp;amp;amp;amp;#x201D; Fe-oxidising bacteria/archaea plus a S-oxidising bacterium, with particular emphasis on controlling the solution redox potential (Eh). In the initial flask bioleaching tests, a steady increase in Eh (up to 840 mV) was observed, reflecting the activity of &amp;amp;amp;amp;amp;amp;amp;#x201C;strong&amp;amp;amp;amp;amp;amp;amp;#x201D; Fe-oxidisers. In this situation, AC dosing effectively suppressed the Eh value and the highest Cu dissolution (70%) was obtained in the AC-0.01% system, while simultaneously immobilising As. In order to maximise Cu dissolution and As immobilisation, it was found preferable to target the Eh range of 650&amp;amp;amp;amp;amp;amp;amp;#x2013;700 mV during bioleaching. The next bioreactor tests used the mixed culture of the same origin, but had been subcultured a few generations further on tennantite concentrate. The Eh level remained unexpectedly low (~630 mV) for most of the leaching period, regardless of the AC dosage. It was later found that the bioreactor systems were almost exclusively dominated by Sb. thermosulfidooxidans, a &amp;amp;amp;amp;amp;amp;amp;#x201C;weak&amp;amp;amp;amp;amp;amp;amp;#x201D; Fe oxidiser with high Cu/As tolerance. In this case, there was no need to artificially suppress the Eh level by AC dosing and Cu leached readily to a final Cu dissolution of ~60% while As dissolution was suppressed to ~15%. Thus, depending on the microbial community that develops at the processing site, Eh control can be achieved either naturally by the activity of &amp;amp;amp;amp;amp;amp;amp;#x201C;weak&amp;amp;amp;amp;amp;amp;amp;#x201D; Fe-oxidisers as the predominant survivors under high Cu/As stress, or artificially by the addition of an Eh regulator such as a carbon catalyst.

    DOI： 10.3389/fmicb.2023.1339549

    Web of Science

    Scopus

    PubMed

  • Microbiological passive treatment of Mn/Zn-containing mine water (vol 219, 106084, 2023)

    Okibe, N; Nonaka, K; Kondo, T; Shimada, K; Liu, PY

    HYDROMETALLURGY   222   2023.10   （ ISSN:0304-386X eISSN:1879-1158 ）

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    Publisher：Hydrometallurgy  

    The authors regret to have made errors in the caption of Fig. 7 (a,b). Incorrect: “The ratios of Mn(II) (grey), Mn(III) (black) and Mn(IV) (white) were….” Correct: “The ratios of Mn(II) (white), Mn(III) (black) and Mn(IV) (grey) were….” The bar labels for Mn(II) and Mn(IV) within the image are also reversed. The authors would like to apologise for any inconvenience caused.

    DOI： 10.1016/j.hydromet.2023.106199

    Web of Science

    Scopus

  • Gold Leaching from Printed Circuit Boards Using a Novel Synergistic Effect of Glycine and Thiosulfate

    Godigamuwa, K; Okibe, N

    MINERALS   13 ( 10 )   2023.10   （ eISSN:2075-163X ）

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    Publisher：Minerals  

    Printed circuit boards (PCBs) are a secondary source for the extraction of precious metals, such as gold (Au), silver (Ag), platinum (Pt), palladium (Pd), etc. Thiosulfate and glycine systems have recently gained a significant amount of attention for Au leaching. However, in the thiosulfate system, the stability of leached Au tends to decrease when using lower thiosulfate concentrations. In this study, a copper–ammonia–thiosulfate system (thiosulfate system) and glycine or histidine were combined to leach Au from PCBs. The glycine–thiosulfate system resulted in a higher Au leaching than the histidine–thiosulfate system. The results revealed that the glycine–thiosulfate system exhibited a synergistic effect on Au leaching (93.7%) at pH 9.3 and 40 °C, while the Au leaching percentages were 47.1% and 50.7% for the thiosulfate and glycine systems, respectively. In the dual system, Fe leaching was insignificant, although Ag and Al leaching were 95.3% and 27.0%, respectively. Compared to the thiosulfate system, the dual system maintained the stability of the leached Au. The system required 60 mM thiosulfate and 0.5 M glycine at 40 °C and pH 9.3 in order to leach Au from PCBs. The kinetic study suggested that Au and Ag leaching from PCBs in the dual system followed the diffusion-controlled model. The Au leaching rate in the initial phase of the dual system was similar to that of the glycine–cyanide system. This novel, mild approach could be applied to hydrometallurgy to leach other precious metals from sources, such as ore and spent catalysts.

    DOI： 10.3390/min13101270

    Web of Science

    Scopus

  • Bioprocessing of Natural/Urban Mine Resources and Bioremediation of Metal-Contaminated Waters

    OKIBE Naoko

    Journal of The Surface Finishing Society of Japan   74 ( 9 )   441 - 446   2023.9   （ ISSN:09151869 eISSN:18843409 ）

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    Language：Japanese   Publisher：The Surface Finishing Society of Japan  

    DOI： 10.4139/sfj.74.441

    CiNii Research

  • 九州大学・住友金属鉱山株式会社における「銅原料中からのヒ素低減技術開発」に向けた取り組み

    三木 一, 沖部 奈緒子, SUYANTARA Gde Pandhe Wisnu, 小山 恵史, 笹木 圭子, 平島 剛, 中村 壮志, 青木 悠二, 田中 善之, 諏訪 貴大

    環境資源工学   68 ( 3 )   124 - 131   2022.6

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    Language：Japanese  

    DOI： 10.4144/rpsj.68.124

  • “Microbially facilitated formation of highly catalytic Pd(0) nanoparticles using an extremely acidophilic archaeon, Sulfolobus tokodaii.” International journal

    Santisak Kitjanukit, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2016   2016.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Arsenic immobilization as bioscorodite at moderate temperatures.” International journal

    Yuta Era, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2016   2016.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Recovery of nickel via reductive bioleaching of Indonesian limonite ore.” International journal

    Katsutoshi Tsutsumi, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2016   2016.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Evaluating factors affecting bioscorodite crystallization from As(III)-bearing acidic metal refinery wastewaters.” International journal

    Masahito Tanaka, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2016   2016.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Biorecovery of Pt(0)-nanoparticles using extremely acidophilic Fe(III)-reducing bacteria.” International journal

    Takahiro Matsumoto, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2016   2016.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “The effect of microbiological redox potential control on Cu extraction in the chalcopyrite bioleaching system.” International journal

    Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Proc. CINEST 2016   2016.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Investigating catalytic effect of silver on bioleaching of enargite concentrate.” International journal

    Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Proc. CINEST 2016   2016.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Chalcopyrite bioleaching with redox potential control.” International journal

    Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Proc. Copper 2016   2016.11

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Bioscorodite crystallization for treatment of As(III)-bearing copper refinery wastewaters.” International journal

    Masahito Tanaka, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    Proc. Copper 2016   2016.11

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Selective bioleaching of enargite (Cu3AsS4) over pyrite (FeS2) for copper recovery.” International journal

    Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Proc. Copper 2016   2016.11

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • Comparison of effectiveness of citric acid and other acids in leaching of low-grade Indonesian saprolitic ores Reviewed

    Astuti Widi, Hirajima Tsuyoshi, Sasaki Keiko, Okibe Naoko

    MINERALS ENGINEERING   85   1 - 16   2016.1

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    Language：Others   Publishing type：Research paper (scientific journal)  

    Comparison of effectiveness of citric acid and other acids in leaching of low-grade Indonesian saprolitic ores
    © 2015 Elsevier Ltd. All rights reserved. Comparison effect of chemical citric acid and other leaching reagents including inorganic acid and other organic acid on nickel extraction from low-grade Indonesian saprolitic ores was evaluated. Two saprolitic ores from two different mining areas (Sulawesi Island and Halmahera Island) in Indonesia were used to investigate the leaching performance and mineral dissolution behaviors of different ore samples using different leaching reagents. Leaching was performed using citric, sulfuric, nitric, hydrochloric, lactic, and oxalic acids. The saprolitic ore from Sulawesi Island (SS) has higher serpentine and lower goethite contents than the saprolitic ore from Halmahera Island (SH). These differences significantly affect the leaching performances and metal dissolution behaviors. Citric acid and sulfuric acid were more effective than other acid solutions for nickel extraction from both samples. Citric acid was very effective for dissolving nickel from serpentine, but did not recover nickel from goethite. In contrast, inorganic acids, namely sulfuric, nitric, and hydrochloric acids, can extract nickel from lateritic ores by dissolving goethite as well as serpentine, but the nickel recoveries achieved with sulfuric acid were higher than those achieved with other inorganic acids. A comparison of the leaching performances of the two samples shows that nickel recovery from SS was higher than that from SH when citric acid leaching was used, but the samples gave similar nickel recoveries in all inorganic acid and lactic acid leaching processes. Moreover, oxalic acid is the least effective reagent for nickel extraction from both samples, because of nickel oxalate precipitation after nickel dissolution. In addition, the effect of a sulfuric acid-citric acid mixture on the nickel dissolution rate was investigated to confirm the individual influences of citric acid and sulfuric acid on the leaching behavior of each sample. The results show that an increase in the amount of sulfuric acid affected the dissolution rate of nickel in leaching of SH much more than that in leaching of SS. In general, the effect of citric acid in the mixture of sulfuric acid and citric acid is attractive. Moreover, citric acid offers not only high nickel recovery and high selectivity of leaching but also an environmentally safe process and low acid consumption.

    DOI： 10.1016/j.mineng.2015.10.001

  • “Bioleaching of highly refractory chalcopyrite in the presence of silver catalyst.” International journal

    Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Proc. CINEST 2015   2015.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Application of Fe(II)-oxidizing and Fe(III)-reducing abilities of the thermo-acidophilic archaeon, Sulfolobus tokodaii for bioleaching of waste printed circuit boards (WPCB) and formation of Pd(0)-nanoparticles.” International journal

    Santisak Kitjanukit, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2015   2015.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Effect of Fe(III)-reducing microbes on organic acid leaching of nickel laterite.” International journal

    Katsutoshi Tsutsumi, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2015   2015.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Formation of Pt(0) nanoparticles using the extremely acidophilic Fe(III)-reducing bacteria.” International journal

    Takahiro Matsumoto, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2015   2015.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Mechanism of indirect chemical oxidation of highly toxic As(III), in the presence of carbon fiber via direct microbial Fe(II) oxidation.” International journal

    Yuken Fukano, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2015   2015.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Investigating factors affecting the size and distribution of Bio-Pd(0) nanoparticles.” International journal

    Daisuke Nakayama, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2015   2015.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Selective bioleaching of enargite (Cu3AsS4) over pyrite (FeS2) for Cu recovery.” International journal

    Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Proc. CINEST 2015   2015.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Crystallization of biogenic scorodite (FeAsO4·2H2O) from acidic wastewaters containing diluted concentrations of highly toxic arsenite.” International journal

    Masahito Tanaka, Tsuyoshi Hirajima, Keiko Sasaki, Kazuhiro Hatano, Atsuko Ohata, Naoko Okibe

    Proc. CINEST 2015   2015.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Microbial community structure analysis of Chinoike-Jigoku (Blood-Pond Hell) hot spring and search for useful microorganisms applicable to bioremediation of heavy metals.” International journal

    Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe, Katsutoshi Tsutsumi

    Proc. CINEST 2014   2014.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Microbial synthesis of platinum nanoparticles using extremely acidophilic iron-reducing bacteria.” International journal

    Takahiro Matsumoto, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2014   2014.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Arsenite removal using acidophilic Fe(II)-oxidizing bacteria in the presence of carbon fiber.” International journal

    Yuken Fukano, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2014   2014.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Formation of Bio-Pd(0) nanoparticles using Fe(III)-reducing, extremely acidophilic bacteria.” International journal

    Daisuke Nakayama, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2014   2014.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Effect of Cu(II) on microbial scorodite crystallization from As(III)-containing copper refinery waste-waters.” International journal

    Shiori Morishita, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2014   2014.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Biooxidation of Alaskan refractory gold ore concentrates.” International journal

    Masahito Tanaka, Yuta Yamaji, Yuken Fukano, Tsuyoshi Hirajima, Keiko Sasaki, Mitsuru Sawada, Naoko Okibe

    Proc. CINEST 2014   2014.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Formation of Pd(0) nanoparticles by bioreduction of Pd(II) using Fe(III)-reducing, acidophilic bacteria” International journal

    Daisuke Nakayama, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    Proc. CINEST 2013   2013.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Leaching behavior of nickel from Indonesian nickel laterite ores by atmospheric acid leaching using citric acid” International journal

    Widi Astuti, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Proc. CINEST 2013   2013.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Biorecovery of vanadium (V) using Fe(III)-reducing, acidophilic bacterium, Acidocella aromatica strain PFBC” International journal

    Masashi Maki, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    Proc. CINEST 2013   2013.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Fundamental study on Cr(VI) reduction by acidophilic Fe(III)-reducing bacterium” International journal

    Yusei Masaki, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    Proc. CINEST 2013   2013.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “As(III)-oxidation activity of thermo-acidophilic iron sulfur-oxidizing archaeon, Acidianus brierleyi, and its use in biogenic scorodite (FeAsO4) formation” International journal

    Shiori Morishita, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    Proc. CINEST 2013   2013.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Isolation of a manganese oxidizing bacterium from Sanbe hot spring in Shimane, Japan and study of biogenic manganese oxides” International journal

    Maki Masashi, Naoko Okibe, Keiko Sasaki, Tsuyoshi Hirajima

    Proc. Kick-off Seminar on ASEAN-Japan BUILD-UP Cooperative Education Program for Global Human Resource Development in Earth Resource Engineering   2013.1

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Simultaneous oxidation and immobilization of arsenite from refinery waste water by thermoacidophilic iron-oxidizing archaeon, Acidianus brierleyi”

    N. Okibe, M. Koga, K. Sasaki, T. Hirajima, S. Heguri, S. Asano

    Proc. Biohydrometallurgy 2012   2012.6

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    Language：English   Publishing type：Research paper (other academic)  

  • “Isolation of a manganese oxidizing bacterium from Sanbe hot spring in Shimane, Japan.” International journal

    M Maki, N Okibe, K Sasaki, T Hirajima

    Proc. CINEST 2011   2011.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • “Immobilization of arsenite from the refining discharge using a thermophilic acidophilic iron-oxidizing archaeon, Acidianus brierleyi” International journal

    M Koga, N Okibe, K Sasaki, T Hirajima

    Proc. CINEST 2011   2011.12

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  • “Recovery of selenium from copper refinery waste water using a selenite-reducing bacterium, Thauera selenatis.” International journal

    M Koga, N Okibe, K Sasaki, T Hirajima

    Proc. CINEST 2011   2011.12

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    Language：English   Publishing type：Research paper (international conference proceedings)  

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Books

  • Biomining Technologies Chapter 5: Biomining Microorganisms: Diversity and Modus Operandi

    Mark Dopson, Naoko Okibe（Role：Joint author）

    Springer  2023.1 

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    Language：English   Book type：Scholarly book

Presentations

  • ニッケルラテライト鉱のバイオ/ケミカルリーチングおよびその浸出メカニズム

    #近藤彰太、#Doaa Ashraf Eladl、@沖部奈緒子

    資源・素材学会  2024.3 

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    Event date： 2024.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • 廃棄鉄澱物を利用したバイオスコロダイト(FeIIIAsVO4･2H2O)生成に関する研究

    #木村一真、@沖部奈緒子

    資源・素材学会  2024.3 

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    Event date： 2024.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • Reuse of Fe- and Mn-sludge wastes for As remediation International conference

    #Peiyu Liu, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Poster presentation  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Effect of microbial community and solution redox potential on the bioleaching of tennantite concentrate International conference

    #Shota Kondo, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Combination of microbial As(III) oxidation and waste Fe-sludge for As removal International conference

    #Yuika Kawazoe, Yuya Sato, Taiki Katayama, Tetsuo Yasutaka, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Selective recovery of critical metals from spent catalysts International conference

    #Idol Phann, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • The synergistic effect of the glycine-thiosulfate system for gold leaching International conference

    @Kasun Godigamuwa, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Organic leaching of refractory nickel laterite ore International conference

    #Brian Kisia Nzuki, @Kasun Godigamuwa, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Poster presentation  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Use of amino acids for selective Cu leaching from waste printed circuit boards International conference

    #Sae Yamamoto, #Idol Phann, @Naoko Okibe

    The 2nd International Conference on earth Resources and Geo-environment Technology (EraGET) 2023  2023.9 

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    Event date： 2023.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Institute of Technology of Cambodia   Country：Cambodia  

  • Microbiological treatment of metal-contaminated waters Invited International conference

    @Naoko Okibe

    The 2nd International Conference on earth Resources and Geo-environment Technology (EraGET) 2023  2023.9 

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    Event date： 2023.9

    Language：English   Presentation type：Oral presentation (invited, special)  

    Venue：Institute of Technology of Cambodia   Country：Cambodia  

  • Removal and stabilization of As(V) by reusing Fe-sludge waste International conference

    #Kazuma Kimura, #Yuika Kawazoe, @Yusei Masaki, @Kengo Horiuchi, @Takaya Hamai, @Naoko Okibe

    The 2nd International Conference on earth Resources and Geo-environment Technology (EraGET) 2023  2023.9 

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    Event date： 2023.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Institute of Technology of Cambodia   Country：Cambodia  

  • As(III)酸化細菌と坑廃水処理場鉄澱物の組み合わせによる新規ヒ素汚染水処理法の開発

    #川添唯香、@佐藤由也、@片山泰樹、@保高徹生、@沖部奈緒子

    資源・素材学会  2023.9 

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    Event date： 2023.9

    Language：Japanese  

    Venue：愛媛大学   Country：Japan  

  • テナンタイト精鉱のバイオリーチング：微生物群集構造と溶液電位制御の関わり

    #近藤彰太、@沖部奈緒子

    資源・素材学会  2023.9 

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    Event date： 2023.9

    Language：Japanese  

    Venue：愛媛大学   Country：Japan  

  • Mn/Zn 含有坑廃水の微生物学的パッシブトリートメント技術の開発

    @沖部奈緒子、#近藤大希、#Liu Peiyu

    環境バイオテクノロジー学会  2023.6 

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    Event date： 2023.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：岡山理科大学   Country：Japan  

  • オーガニックリーチングによる廃プリント基板からの有価金属回収

    #山本紗愛、#Phann Idol、@沖部奈緒子

    資源・素材学会  2023.5 

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    Event date： 2023.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 鉄含有廃棄物を活用したヒ素吸着/安定化処理技術の開発

    #木村一真、#川添唯香、@沖部奈緒子

    資源・素材学会  2023.5 

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    Event date： 2023.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • Tennantite精鉱のバイオリーチングに関する研究

    #近藤彰太、@沖部奈緒子

    資源・素材学会  2023.5 

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    Event date： 2023.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 坑廃水脱鉄処理槽の鉄澱物を再利用したヒ素汚染水浄化法の開発

    川添 唯香、木村 一真、沖部奈緒子

    資源・素材学会  2023.3 

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    Event date： 2023.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • Selective leaching of molybdenum and cobalt from the spent catalyst by using amino acid

    Idol Phann, Sae Yamamoto, Naoko Okibe

    資源・素材学会  2023.3 

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    Event date： 2023.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • Biotreatment of Mn/Zn-containing mine water International conference

    #Taiki Kondo, @Naoko Okibe

    International Symposium on Earth Science and Technology 2022  2022.12 

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    Event date： 2022.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Selective dissolution of molybdenum and cobalt from spent hydrodesulfurization catalysts using amino acid International conference

    #Idol Phann, #Sae Yamamoto, @Naoko Okibe

    International Symposium on Earth Science and Technology 2022  2022.12 

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    Event date： 2022.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Waste Fe-sludge from the mine-water treatment plant as a promising adsorbent for As International conference

    #Yuika Kawazoe, #Kazuma Kimura, @Naoko Okibe

    International Symposium on Earth Science and Technology 2022  2022.12 

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    Event date： 2022.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Reusing the passive treatment Fe-sludge for the remediation of As-bearing waters International conference

    #Yuika Kawazoe, #KazumaKimura1, @KengoHoriuchi, @Takaya Hamai, @Naoko Okibe

    International Biohydrometallurgy Symposium 2022  2022.11 

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    Event date： 2022.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Perth   Country：Australia  

  • Biotechnical treatment of metal-bearing mine/process waters Invited International conference

    @Naoko Okibe

    International Biohydrometallurgy Symposium 2022  2022.11 

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    Event date： 2022.11

    Language：English   Presentation type：Oral presentation (invited, special)  

    Venue：Perth   Country：Australia  

  • Carbon-assisted bioleaching of high arsenic-bearing “dirty” concentrates International conference

    #KaitoHayashi, @Keishi Oyama, @Kazuhiko Shimada, @Yuji Aoki, @Takahiro Suwa, @Tsuyoshi Hirajima, @Naoko Okibe

    International Biohydrometallurgy Symposium 2022  2022.11 

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    Event date： 2022.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Perth   Country：Australia  

  • Mn酸化菌を利用した Mn2+/Zn2+含有坑廃水の Passive treatmentプロセスの開発

    近藤大希、沖部奈緒子

    資源・素材学会  2022.9 

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    Event date： 2022.9

    Language：Japanese  

    Venue：福岡工業大学   Country：Japan  

  • 坑廃水処理後の鉄澱物を再利用したヒ素汚染水の新規パッシブトリートメント法の開発

    川添 唯香、木村 一真、沖部奈緒子

    資源・素材学会  2022.9 

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    Event date： 2022.9

    Language：Japanese  

    Venue：福岡工業大学   Country：Japan  

  • ヒ素新規パッシブトリート法の開発

    川添唯香、沖部奈緒子

    資源・素材学会  2022.5 

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    Event date： 2022.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • Mn2+/Zn2+含有坑廃水の微生物学的 Passive treatmentプロセスの開発

    近藤大希、沖部奈緒子

    資源・素材学会  2022.3 

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    Event date： 2022.3 - 2021.3

    Language：Japanese  

    Venue：千葉工業大学（オンライン）   Country：Japan  

  • Alkaline Amino Acid Leaching for Selective Recovery of Molybdenum and Cobalt from Spent Mo/Co-catalyst

    Idol Phann, Naoko Okibe

    資源・素材学会  2022.3 

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    Event date： 2022.3 - 2021.3

    Language：English  

    Venue：千葉工業大学（オンライン）   Country：Japan  

  • Activated carbon-assisted bioleaching of three types of Cu/As sulfide concentrates International conference

    #Kaito Hayashi, @Yuji Aoki, @Takahiro Suwa, @Tsuyoshi Hirajima, @Keiko Sasaki, @Naoko Okibe

    International Symposium on Earth Science and Technology 2021  2021.11 

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    Event date： 2021.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Passive treatment of Mn/Zn-bearing mine water using Mn2+-oxidizing bacteria International conference

    #Taiki Kondo, @Naoko Okibe

    International Symposium on Earth Science and Technology 2021  2021.11 

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    Event date： 2021.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Organic leaching of spent Mo/Co-catalyst International conference

    #Idol Phann, @Naoko Okibe

    International Symposium on Earth Science and Technology 2021  2021.11 

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    Event date： 2021.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Mn/Zn含有鉱山廃水の微生物学的 Passive Treatmentプロセスの開発

    近藤大希、沖部奈緒子

    資源・素材学会  2021.9 

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    Event date： 2021.9

    Language：Japanese  

    Venue：北海道大学（オンライン）   Country：Japan  

  • Mn2+含有鉱山廃水処理のための微生物学的Passive Treatmentの開発

    近藤大希、沖部奈緒子

    資源・素材学会  2021.5 

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    Event date： 2021.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • ヒ素含有一次硫化銅精鉱の活性炭バイオリーチングに関する研究

    #林 海人、@小山 恵史、@忰山 卓也、@青木 悠二、@平島 剛、@笹木 圭子、@沖部 奈緒子

    資源・素材学会  2021.3 

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    Event date： 2021.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：千葉工業大学   Country：Japan  

  • Organic leaching of spent oil refinery catalyst for rare metal recovery International conference

    #Yu Tanaka, @Naoko Okibe

    International Symposium on Earth Science and Technology 2020  2020.11 

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    Event date： 2020.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Chemical-microbiological synergistic treatment of Mn(II)-contaminating wastewater using “bioactive” birnessite International conference

    #Kohei Nonaka, @Naoko Okibe

    International Symposium on Earth Science and Technology 2020  2020.11 

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    Event date： 2020.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • バイオアクティブバーネサイトによるMn含有廃液の酸化処理に関する研究

    野中康平, 沖部奈緒子

    資源・素材学会  2020.9 

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    Event date： 2020.9

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • バイオアクティブバーネサイトによるMn含有廃液の処理

    野中康平, 沖部奈緒子

    資源・素材学会  2020.5 

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    Event date： 2020.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • ヒ素含有一次硫化銅精鉱のバイオリーチングにおける活性炭添加の影響

    九大:林海人, 小山恵史, 笹木圭子, 沖部奈緒子 住友金属鉱山:青木悠二, 黒岩樹人, 平島剛

    資源・素材学会  2020.5 

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    Event date： 2020.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 石油脱硫廃触媒からのレアメタル浸出に関する研究

    田中ゆう、沖部奈緒子

    資源・素材学会  2020.3 

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    Event date： 2020.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • 難処理性一次硫化銅鉱のバイオリーチングにおける炭素触媒効果とその機構

    小山恵史、高松恭平、青木悠二、黒岩樹人、平島剛、笹木圭子、三木一、沖部奈緒子

    資源・素材学会  2020.3 

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    Event date： 2020.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • 難処理性一次硫化銅鉱のバイオリーチングにおける活性炭添加の影響

    林海人、小山恵史、青木 悠二、黒岩樹人、平島剛、笹木圭子、三木一、沖部奈緒子

    資源・素材学会  2020.3 

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    Event date： 2020.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • 休廃止鉱山におけるMn含有坑廃水の現地調査とMn酸化細菌の探索

    野中康平、サンティサック ギッチャーヌギット、沖部奈緒子

    資源・素材学会  2020.3 

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    Event date： 2020.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • Comparison on the catalytic mechanism of activated carbon in bioleaching of chalcopyrite and enargite International conference

    Keishi Oyama, Kyohei Takamatsu, Hajime Miki, Naoko Okibe

    International Symposium on Earth Science and Technology 2019  2019.12 

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    Event date： 2019.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Characterization and acid leaching behavior of spent Mo/Co-catalyst International conference

    Yu Tanaka, Naoko Okibe

    International Symposium on Earth Science and Technology 2019  2019.12 

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    Event date： 2019.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Synergistic effects of biogenic manganese oxide and Mn(II)-oxidizing bacteria on the oxidation of arsenite International conference

    Ryohei Nishi, Santisak Kitjanukit, Kohei Nonaka, Naoko Okibe

    International Symposium on Earth Science and Technology 2019  2019.12 

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    Event date： 2019.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Importance of sulfur oxidizing microorganisms for chalcopyrite bioleaching with saline water International conference

    Haruki Noguchi, Naoko Okibe

    International Symposium on Earth Science and Technology 2019  2019.12 

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    Event date： 2019.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Mn(II) oxidative removal using the bio-activated carbon column International conference

    Santisak Kitjanukit, Naoko Okibe

    International Biohydrometallurgy Symposium 2019  2019.10 

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    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Acros Fukuoka   Country：Japan  

  • Thiourea bioleaching for gold and silver recycling from PCB International conference

    Yu Tanaka, Naoko Okibe

    International Biohydrometallurgy Symposium 2019  2019.10 

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    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Acros Fukuoka   Country：Japan  

  • Carbon-assisted bioleaching of primary copper sulfides International conference

    Keishi Oyama, Kyohei Takamatsu, Hajime Miki, Keiko Sasaki, Naoko Okibe

    International Biohydrometallurgy Symposium 2019  2019.10 

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    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Acros Fukuoka   Country：Japan  

  • Microbiological removal of arsenic from mining impacted waters International conference

    Naoko Okibe

    International Biohydrometallurgy Symposium 2019  2019.10 

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    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (invited, special)  

    Venue：Acros Fukuoka   Country：Japan  

  • Effect of salinity on bioleaching of chalcopyrite concentrate International conference

    Haruki Noguchi, Naoko Okibe

    International Biohydrometallurgy Symposium 2019  2019.10 

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    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Acros Fukuoka   Country：Japan  

  • Oxidative removal of arsenite using biogenic manganese oxide International conference

    Ryohei Nishi, Santisak Kitjanukit, Naoko Okibe

    International Biohydrometallurgy Symposium 2019  2019.10 

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    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Acros Fukuoka   Country：Japan  

  • マンガン酸化物による亜ヒ酸の酸化処理に関する研究

    西 瞭平、Santisak KITJANUKIT、野中 康平、沖部 奈緒子

    資源・素材学会  2019.9 

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    Event date： 2019.9

    Language：Japanese  

    Venue：京都大学   Country：Japan  

  • Chalcopyrite bioleachingにおける塩化物イオンの影響評価

    野口晴生 、沖部奈緒子

    資源・素材学会  2019.9 

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    Event date： 2019.9

    Language：Japanese  

    Venue：京都大学   Country：Japan  

  • 電子廃基板からの貴金属バイオリーチング関する研究

    田中ゆう 、沖部奈緒子

    資源・素材学会  2019.5 

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    Event date： 2019.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • チオ尿素バイオリーチングによる廃電子基板からの貴金属回収に関する研究

    田中ゆう, Intan Nurul Rizki, 沖部 奈緒子

    資源・素材学会  2019.3 

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    Event date： 2019.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • 黄銅鉱バイオリーチングにおける炭素材料触媒機構の解明

    高松恭平, 小山恵史, 沖部 奈緒子

    資源・素材学会  2019.3 

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    Event date： 2019.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • マンガン酸化物による亜ヒ酸の酸化不動化に関する研究

    西 瞭平, Santisak Kitjanukit, 沖部 奈緒子

    資源・素材学会  2019.3 

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    Event date： 2019.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • 塩化物イオンのchalcopyrite bioleachingへの影響評価

    野口 晴生, 沖部 奈緒子

    資源・素材学会  2019.3 

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    Event date： 2019.3

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • Evaluation of Catalytic Effect of Activated Carbon on Enargite Bioleaching International conference

    Keishi Oyama, Hajime Miki, Naoko Okibe

    International Symposium on Earth Science and Technology 2018  2018.11 

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    Event date： 2018.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Oxidation and immobilization of arsenite using biogenic manganese oxide International conference

    Ryohei Nishi, Santisak Kitjanukit, Naoko Okibe

    International Symposium on Earth Science and Technology 2018  2018.11 

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    Event date： 2018.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Oxidative removal of arsenic using activated carbon International conference

    Yusuke Hotta, Naoko Okibe

    International Symposium on Earth Science and Technology 2018  2018.11 

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    Event date： 2018.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Saline water bioleaching of refractory chalcopyrite concentrate International conference

    Haruki Noguchi, Naoko Okibe

    International Symposium on Earth Science and Technology 2018  2018.11 

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    Event date： 2018.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Synergistic effect of natural Mn oxide, activated carbon and Mn(II)-oxidizing bacteria on oxidative removal of Mn(II) from wastewaters International conference

    Santisak Kitjanukit, Naoko Okibe

    International Symposium on Earth Science and Technology 2018  2018.11 

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    Event date： 2018.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Carbon-assisted bioleaching of chalcopyrite concentrate International conference

    Kyohei Takamatsu, Keishi Oyama, Hajime Miki, Naoko Okibe

    International Symposium on Earth Science and Technology 2018  2018.11 

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    Event date： 2018.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • バイオハイドロメタラジーによる鉱物処理と環境修復

    沖部 奈緒子

    資源・素材学会  2018.9 

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    Event date： 2018.9

    Language：Japanese  

    Venue：福岡工業大学   Country：Japan  

  • 中温条件下における低濃度亜ヒ酸の酸化・不動化に関する研究

    西 瞭平, 沖部 奈緒子

    資源・素材学会  2018.9 

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    Event date： 2018.9

    Language：Japanese  

    Venue：福岡工業大学   Country：Japan  

  • 活性炭を利用したAs(III)不動化処理に関する研究

    堀田 悠介, 沖部 奈緒子

    資源・素材学会  2018.9 

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    Event date： 2018.9

    Language：Japanese  

    Venue：福岡工業大学   Country：Japan  

  • 炭素材料添加が黄銅鉱バイオリーチングに及ぼす影響

    高松 恭平, 沖部 奈緒子

    資源・素材学会  2018.9 

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    Event date： 2018.9

    Language：Japanese  

    Venue：福岡工業大学   Country：Japan  

  • Chalcopyriteバイオリーチングにおける NaCl添加による電位制御

    野口 晴生, 小山 恵史, 沖部 奈緒子

    資源・素材学会  2018.9 

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    Event date： 2018.9

    Language：Japanese  

    Venue：福岡工業大学   Country：Japan  

  • 硫砒銅鉱バイオリーチングにおける活性炭触媒の影響

    小山 恵史, 三木 一, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2018.9 

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    Event date： 2018.9

    Language：Japanese  

    Venue：福岡工業大学   Country：Japan  

  • バイオスコロダイト法による亜ヒ酸酸化不動化反応における同・異種種結晶添加の影響

    西瞭平, 沖部 奈緒子

    資源・素材学会  2018.6 

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    Event date： 2018.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 難処理一次硫化銅鉱chalcopyrite のバイオリーチングにおけるNaCl添加効果

    野口晴生，小山恵史，沖部奈緒子

    資源・素材学会  2018.6 

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    Event date： 2018.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • Isolation of the new Mn(II)-oxidizing bacterial strain Pseudomonas sp. SK3 and its use in biotreatment of Mn(II)-containing wastewater

    Santisak Kitjanukit, Naoko Okibe

    資源・素材学会  2018.3 

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    Event date： 2018.3

    Language：Japanese  

    Venue：東京大学   Country：Japan  

  • 硫砒銅鉱バイオリーチングにおける活性炭の触媒能評価

    小山恵史、野口晴生、沖部奈緒子

    資源・素材学会  2018.3 

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    Event date： 2018.3

    Language：Japanese  

    Venue：東京大学   Country：Japan  

  • Activated carbon-assisted oxidation and immobilization of highly toxic arsenite International conference

    Yusuke Hotta, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2017  2017.11 

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    Event date： 2017.11 - 2017.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Bioleaching and recovery of gold from E-waste International conference

    Intan Nurul Rizki, Tsuyoshi Hirajima, Naoko Okibe

    International Symposium on Earth Science and Technology 2017  2017.11 

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    Event date： 2017.11 - 2017.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Behavior of Sulfate Ion during Formation of Bioscorodite for Arsenite Immobilization International conference

    Masahito Tanaka, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2017  2017.11 

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    Event date： 2017.11 - 2017.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Isolation and characterization of a new Mn(II)-oxidizing bacterial strain from Mn-containing metal-refinery wastewater deposit International conference

    Santisak Kitjanukit, Kyohei Takamatsu, Kenji Takeda, Satoshi Asano, Naoko Okibe

    International Symposium on Earth Science and Technology 2017  2017.11 

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    Event date： 2017.11 - 2017.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Catalytic effect of activated carbon on bioleaching of enargite concentrate International conference

    Keishi Oyama, Haruki Noguchi, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    International Symposium on Earth Science and Technology 2017  2017.11 

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    Event date： 2017.11 - 2017.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Low-temperature bioscorodite formation for As(III) removal International conference

    Yuta Era, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2017  2017.11 

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    Event date： 2017.11 - 2017.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Recovery of rare-earth element from spent hydroprocessing catalyst International conference

    Melisa Pramesti Dewi, Himawan Tri Bayu Murti Petrus, Naoko Okibe

    International Symposium on Earth Science and Technology 2017  2017.11 

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    Event date： 2017.11 - 2017.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Effect of seed feeding and oxygen supply on bioscorodite crystallization International conference

    Ryohei Nishi, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2017  2017.11 

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    Event date： 2017.11 - 2017.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Microbiological redox control for bioleaching of chalcopyrite concentrate International conference

    Kyohei Takamatsu, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2017  2017.11 

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    Event date： 2017.11 - 2017.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • New insights in bio-mineral processing to enable utilization of refractory low-grade minerals Invited International conference

    Naoko Okibe

    Mineral Processing and Technology International Conference 2017 (Mineprocet '17)  2017.10 

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    Event date： 2017.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Balai Kartini Exhibition and Convention Center, Jakarta   Country：Indonesia  

  • Characterization and Acid Leaching of Spent Hydroprocessing Catalyst for Valuable Metal Recovery International conference

    Melisa Pramesti Dewi, Himawan Petrus, Naoko Okibe

    Earth 2017  2017.9 

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    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Hokkaido University, Sapporo   Country：Japan  

  • As(III) oxidation and immobilization by activated carbon International conference

    Yusuke Hotta, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    Earth 2017  2017.9 

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    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Hokkaido University, Sapporo   Country：Japan  

  • Optimization of microbiological redox potential control in chalcopyrite bioleaching International conference

    Kyohei Takamatsu, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Earth 2017  2017.9 

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    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Hokkaido University, Sapporo   Country：Japan  

  • Microbiological Potential for Gold Leaching and Recovery from E-waste International conference

    Intan Nurul Rizki, Tsuyoshi Hirajima, Naoko Okibe

    Earth 2017  2017.9 

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    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Hokkaido University, Sapporo   Country：Japan  

  • Manganese Removal from Metal Refinery Wastewater using Mn(II)-oxidizing Bacteria International conference

    Santisak Kitjanukit, Kyohei Takamatsu, Kenji Takeda, Satoshi Asano, Naoko Okibe

    International Biohydrometallurgy Symposium 2017  2017.9 

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    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：TU Bergakademie Freiberg   Country：Germany  

  • Mechanism of silver-catalyzed bioleaching of enargite concentrate International conference

    Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    International Biohydrometallurgy Symposium 2017  2017.9 

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    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：TU Bergakademie Freiberg   Country：Germany  

  • Optimization of Bioscorodite Crystallization for Treatment of As(III)-bearing Wastewaters International conference

    Masahito Tanaka, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Biohydrometallurgy Symposium 2017  2017.9 

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    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：TU Bergakademie Freiberg   Country：Germany  

  • Microbiological As(III) oxidation and immobilization as scorodite at moderate temperatures International conference

    Yuta Era, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Biohydrometallurgy Symposium 2017  2017.9 

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    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：TU Bergakademie Freiberg   Country：Germany  

  • 中度好熱超好酸性・鉄酸化細菌と活性炭を組み合わせたAs(III) 酸化・不動化処理に関する研究

    堀田悠介, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2017.6 

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    Event date： 2017.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • Production of Bio-Gold Nanoparticles Using Extremely Acidophilic Fe(III)-reducing Bacteria

    Intan Nurul Rizki, Tsuyoshi Hirajima, Naoko Okibe

    資源・素材学会  2017.6 

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    Event date： 2017.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • Characterization of Spent Hydroprocessing Catalyst and Its Recycling Feasibility Study for Valuable Metal Recovery

    Melisa Pramesti Dewi, Himawan Petrus, Naoko Okibe

    資源・素材学会  2017.6 

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    Event date： 2017.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • マンガン酸化細菌を利用した製錬排水からのMn(II)酸化・不動化に関する研究

    高松 恭平, Santisak Kitjanukit, 沖部 奈緒子

    資源・素材学会  2017.6 

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    Event date： 2017.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 超好酸性古細菌 Sulfolobus tokodaii によるバイオパラジウムナノ粒子の生成

    Santisak Kitjanukit, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2017.3 

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    Event date： 2017.3 - 2017.9

    Language：English  

    Venue：千葉工業大学   Country：Japan  

  • 銀触媒存在下における硫砒銅鉱バイオリーチングのメカニズム解明

    小山 恵史, 平島 剛, 笹木 圭子, 三木 一, 沖部 奈緒子

    資源・素材学会  2017.3 

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    Event date： 2017.3 - 2017.9

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • 中温条件下における亜ヒ酸(As(III))の微生物学的酸化および不動化に関する研究

    惠良 祐太, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2017.3 

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    Event date： 2017.3 - 2017.9

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • 低濃度亜ヒ酸含有製錬廃液からのバイオスコロダイト生成

    田中 雅仁, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2017.3 

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    Event date： 2017.3 - 2017.9

    Language：Japanese  

    Venue：千葉工業大学   Country：Japan  

  • Chalcopyrite bioleaching with redox potential control International conference

    Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Copper 2016  2016.11 

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    Event date： 2016.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kobe   Country：Japan  

  • Bioscorodite crystallization for treatment of As(III)-bearing copper refinery wastewaters International conference

    Masahito Tanaka, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    Copper 2016  2016.11 

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    Event date： 2016.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kobe   Country：Japan  

  • Selective bioleaching of enargite (Cu3AsS4) over pyrite (FeS2) for copper recovery International conference

    Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    Copper 2016  2016.11 

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    Event date： 2016.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kobe   Country：Japan  

  • インドネシア産ニッケルラテライト鉱に対する還元的バイオリーチングの有効性評価

    堤 克俊, 正木 悠聖, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2016.9 

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    Event date： 2016.9

    Language：Japanese  

    Venue：岩手大学   Country：Japan  

  • 九州大学グリーンアジア国際戦略プログラムにおける国際人材育成の取り組み

    沖部 奈緒子, 三木 一

    資源・素材学会  2016.9 

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    Event date： 2016.9

    Language：Japanese  

    Venue：岩手大学   Country：Japan  

  • 中温条件下における亜ヒ酸の微生物学的酸化・不動化に関する研究

    惠良 祐太, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2016.9 

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    Event date： 2016.9

    Language：Japanese  

    Venue：岩手大学   Country：Japan  

  • 超好酸性古細菌Sulfolobus tokodaii を利用したバイオPd(0)ナノ粒子の生成およびその触媒活性評価

    Santisak Kitjanukit, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2016.9 

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    Event date： 2016.9

    Language：Japanese  

    Venue：岩手大学   Country：Japan  

  • 超好酸性鉄還元細菌を利用した貴金属バイオナノ粒子の生成および選択的回収

    松本 昂大, 中山 大輔, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2016.9 

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    Event date： 2016.9

    Language：Japanese  

    Venue：岩手大学   Country：Japan  

  • 中温条件下における亜ヒ酸の微生物学的酸化・不動化に関する研究

    惠良 祐太, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2016.6 

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    Event date： 2016.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 低濃度As(III)含有銅製錬廃液からのバイオスコロダイト生成に関する研究

    田中 雅仁, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2016.6 

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    Event date： 2016.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • ニッケルラテライト鉱の還元的バイオリーチングに関する研究

    堤 克俊, 正木 悠聖, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2016.6 

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    Event date： 2016.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 硫砒銅鉱のバイオリーチングにおける銀触媒の影響

    小山　恵史, 平島 剛, 笹木 圭子, 三木　一, 沖部 奈緒子

    資源・素材学会  2016.3 

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    Event date： 2016.3

    Language：Japanese  

    Venue：東京大学   Country：Japan  

  • 超好酸性鉄還元細菌を利用した貴金属バイオナノ粒子の生成

    松本　昂大, 中山　大輔, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2016.3 

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    Event date： 2016.3

    Language：Japanese  

    Venue：東京大学   Country：Japan  

  • ヒ素含有銅鉱石のバイオリーチングとヒ素含有製錬廃液のバイオ処理

    沖部 奈緒子

    資源・素材学会  2016.3 

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    Event date： 2016.3

    Language：Japanese  

    Venue：東京大学   Country：Japan  

  • Biohydrometallurgy for mineral processing and environmental remediation: State of the art and the development International conference

    Naoko Okibe

    International Symposium on Environment and Resource Recycling Technology 2016  2016.3 

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    Event date： 2016.3

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Miyazaki   Country：Japan  

  • The effect of microbiological redox potential control on Cu extraction in the chalcopyrite bioleaching system International conference

    Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    International Symposium on Earth Science and Technology 2016  2016.12 

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    Event date： 2015.12 - 2016.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Biorecovery of Pt(0)-nanoparticles using extremely acidophilic Fe(III)-reducing bacteria International conference

    Takahiro Matsumoto, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2016  2016.12 

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    Event date： 2015.12 - 2016.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Microbially Facilitated Formation of Highly Catalytic Pd(0) Nanoparticles Using an Extremely Acidophilic Archaeon, Sulfolobus tokodaii International conference

    Santisak Kitjanukit, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2016  2016.12 

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    Event date： 2015.12 - 2016.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Investigating catalytic effect of silver on bioleaching of enargite concentrate International conference

    Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2016  2016.12 

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    Event date： 2015.12 - 2016.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Arsenic immobilization as bioscorodite at moderate temperatures International conference

    Yuta Era, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2016  2016.12 

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    Event date： 2015.12 - 2016.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Recovery of nickel via reductive bioleaching of Indonesian limonite ore International conference

    Katsutoshi Tsutsumi, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2016  2016.12 

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    Event date： 2015.12 - 2016.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Evaluating factors affecting bioscorodite crystallization from As(III)-bearing acidic metal refinery wastewaters International conference

    Masahito Tanaka, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2016  2016.12 

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    Event date： 2015.12 - 2016.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Mechanism of indirect chemical oxidation of highly toxic As(III), in the presence of carbon fiber via direct microbial Fe(II) oxidation International conference

    Yuken Fukano, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2015  2015.12 

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    Event date： 2015.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Formation of Pt(0) nanoparticles using the extremely acidophilic Fe(III)-reducing bacteria International conference

    Takahiro Matsumoto, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2015  2015.12 

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    Event date： 2015.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Effect of Fe(III)-reducing microbes on organic acid leaching of nickel laterite International conference

    Katsutoshi Tsutsumi, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2015  2015.12 

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    Event date： 2015.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Application of Fe(II)-oxidizing and Fe(III)-reducing abilities of the thermo-acidophilic archaeon, Sulfolobus tokodaii for bioleaching of waste printed circuit boards (WPCB) and formation of Pd(0)-nanoparticles International conference

    Santisak Kitjanukit, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2015  2015.12 

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    Event date： 2015.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Bioleaching of highly refractory chalcopyrite in the presence of silver catalyst International conference

    Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    International Symposium on Earth Science and Technology 2015  2015.12 

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    Event date： 2015.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Crystallization of biogenic scorodite (FeAsO4·2H2O) from acidic wastewaters containing diluted concentrations of highly toxic arsenite International conference

    Masahito Tanaka, Tsuyoshi Hirajima, Keiko Sasaki, Kazuhiro Hatano, Atsuko Ohata, Naoko Okibe

    International Symposium on Earth Science and Technology 2015  2015.12 

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    Event date： 2015.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Selective bioleaching of enargite (Cu3AsS4) over pyrite (FeS2) for Cu recovery International conference

    Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

    International Symposium on Earth Science and Technology 2015  2015.12 

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    Event date： 2015.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Investigating factors affecting the size and distribution of Bio-Pd(0) nanoparticles International conference

    Daisuke Nakayama, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2015  2015.12 

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    Event date： 2015.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Fukuoka   Country：Japan  

  • Biohydrometallurgy for mineral processing and environmental remediation: State of the art and the development Invited International conference

    Naoko Okibe

    sntki2015  2015.10 

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    Event date： 2015.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Yogyakarta   Country：Indonesia  

  • Utilization of metabolic citric acid from Aspergillus niger using corn starch in the nickel leaching of Indonesian saprolitic ore International conference

    Widi Astuti, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Biohydrometallurgy Symposium 2015  2015.10 

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    Event date： 2015.10

    Language：English  

    Venue：Bali   Country：Indonesia  

  • Effect of Cu(II) on bio-scorodite crystallization using Acidianus brierleyi International conference

    Naoko Okibe, Shiori Morishita, Masahito Tanaka, Tsuyoshi Hirajima, Keiko Sasaki

    International Biohydrometallurgy Symposium 2015  2015.10 

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    Event date： 2015.10

    Language：English  

    Venue：Bali   Country：Indonesia  

  • Microbial community structure analysis of Blood Pond Hell hot spring in Japan and search for metal-reducing microbes International conference

    Yusei Masaki, Shin-ichi Hirano, Naoko Okibe

    International Biohydrometallurgy Symposium 2015  2015.10 

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    Event date： 2015.10

    Language：English  

    Venue：Bali   Country：Indonesia  

  • 好熱・好酸性鉄還元古細菌Sulfolobus sp. GA1株の諸性質の解析

    堤　克俊, 正木　悠聖, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2015.9 

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    Event date： 2015.9

    Language：Japanese  

    Venue：愛媛大学   Country：Japan  

  • 好酸性・硫黄酸化古細菌Sulfolobus spp.における鉄還元能の比較検証、及び六価クロム還元処理への応用可能性

    正木　悠聖, 堤　克俊, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2015.9 

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    Event date： 2015.9

    Language：Japanese  

    Venue：愛媛大学   Country：Japan  

  • 超好酸性鉄還元細菌のPt(IV)還元能を利用したPt(0)ナノ粒子の生成に関する研究

    松本　昂大, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2015.9 

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    Event date： 2015.9

    Language：Japanese  

    Venue：愛媛大学   Country：Japan  

  • 超好酸性鉄還元細菌を利用したプラチナ（Pt）ナノ粒子の生成

    松本　昂大, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2015.6 

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    Event date： 2015.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 好熱・好酸性鉄還元古細菌Sulfolobus sp. GA1株の諸性質の解析

    堤　克俊, 正木　悠聖, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2015.6 

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    Event date： 2015.6

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 亜ヒ酸含有製錬廃液からのバイオスコロダイト生成に及ぼすCu(II)の影響

    森下 志織, 田中 雅仁, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2015.3 

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    Event date： 2015.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京大学   Country：Japan  

  • 超好酸性鉄還元細菌を利用したPdナノ粒子生成における、微生物学的/化学的反応の関与

    中山　大輔, 笹木 圭子, 平島 剛, 沖部 奈緒子

    資源・素材学会  2015.3 

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    Event date： 2015.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京大学   Country：Japan  

  • 別府血の池地獄由来 Sulfolobus sp. GA1株の諸性質の解析および六価クロム還元への応用

    正木　悠聖, 堤　克俊, 笹木 圭子, 平島 剛, 沖部 奈緒子

    資源・素材学会  2015.3 

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    Event date： 2015.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京大学   Country：Japan  

  • 中度好熱性鉄酸化細菌および炭素繊維を組み合わせた亜ヒ酸含有廃液処理

    深野　有兼, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2015.3 

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    Event date： 2015.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京大学   Country：Japan  

  • Microbial community structure analysis of Chinoike-Jigoku (Blood-Pond Hell) hot spring and search for useful microorganisms applicable to bioremediation of heavy metals. International conference

    Yusei Masaki, Katsutoshi Tsutsumi, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2014  2014.12 

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    Event date： 2014.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Effect of leaching reagent on the atmospheric dissolution of indonesian saprolitic ore. International conference

    Widi Astuti, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2014  2014.12 

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    Event date： 2014.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Microbial synthesis of platinum nanoparticles using extremely acidophilic iron-reducing bacteria. International conference

    Takahiro Matsumoto, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2014  2014.12 

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    Event date： 2014.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Arsenite removal using acidophilic Fe(II)-oxidizing bacteria in the presence of carbon fiber. International conference

    Yuken Fukano, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2014  2014.12 

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    Event date： 2014.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Formation of Bio-Pd(0) nanoparticles using Fe(III)-reducing, extremely acidophilic bacteria. International conference

    Daisuke Nakayama, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2014  2014.12 

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    Event date： 2014.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Biooxidation of Alaskan refractory gold ore concentrates International conference

    Masahito Tanaka, Yuta Yamaji, Yuken Fukano, Tsuyoshi Hirajima, Keiko Sasaki, Mitsuru Sawada, Naoko Okibe

    International Symposium on Earth Science and Technology 2014  2014.12 

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    Event date： 2014.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Effect of Cu(II) on microbial scorodite crystallization from As(III)-containing copper refinery waste-waters. International conference

    Shiori Morishita, Tsuyoshi Hirajima, Keiko Sasaki, Naoko Okibe

    International Symposium on Earth Science and Technology 2014  2014.12 

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    Event date： 2014.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • 超好酸性鉄還元細菌を利用したバイオパラジウム(Bio-Pd)ナノ粒子の生成

    中山　大輔, 笹木 圭子, 平島 剛, 沖部 奈緒子

    資源・素材学会  2014.9 

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    Event date： 2014.9

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 特性評価およびスラウェシ島（インドネシア）からのサプロライトラテライトの大気クエン酸浸出：ミネラル溶出挙動への洞察

    アストゥティ　ウィディ, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2014.9 

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    Event date： 2014.9

    Language：English  

    Venue：熊本大学   Country：Japan  

  • アラスカ産難処理金鉱石のバイオオキシデーション

    田中 雅仁, 澤田 満, 笹木 圭子, 平島 剛, 沖部 奈緒子

    資源・素材学会  2014.9 

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    Event date： 2014.9

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • Use of extremophiles for treatment of metal-polluted wastewaters Invited

    Naoko Okibe

    クリタ 水・環境科学研究　優秀賞成果発表講演  2014.8 

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    Event date： 2014.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Tokyo   Country：Japan  

  • Biooxidation of Alaskan refractory gold ore concentrates International conference

    Naoko Okibe, Masahito Tanaka, Mitsuru Sawada, Keiko Sasaki, Tsuyoshi Hirajima

    Biohydrometallurgy `14  2014.6 

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    Event date： 2014.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Falmouth   Country：United Kingdom  

  • 超好酸性微生物におけるAs(III)酸化能の探索

    深野　有兼, 笹木 圭子, 平島 剛, 沖部 奈緒子

    資源・素材学会  2014.5 

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    Event date： 2014.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 好酸性鉄還元細菌を用いたバイオパラジウム(Bio-Pd(0))ナノ粒子の生成

    中山　大輔, 笹木 圭子, 平島 剛, 沖部 奈緒子

    資源・素材学会  2014.5 

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    Event date： 2014.5

    Language：Japanese  

    Venue：九州大学   Country：Japan  

  • 別府血の池地獄における微生物群集構造解析及び資源工学への応用へ向けた有用微生物の探索

    正木　悠聖, 平野　伸一, 笹木 圭子, 平島 剛, 沖部 奈緒子

    資源・素材学会  2014.3 

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    Event date： 2014.3

    Language：Japanese  

    Venue：東京大学   Country：Japan  

  • 大気圧下でのクエン酸によるハルマヘラ島（インドネシア）産低グレード褐鉄鉱鉱石のニッケル抽出

    Astuti Widi, 平島 剛, 笹木 圭子, 沖部 奈緒子

    資源・素材学会  2014.3 

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    Event date： 2014.3

    Language：English   Presentation type：Oral presentation (general)  

    Venue：東京大学   Country：Japan  

  • 中度好熱・好酸性細菌を利用した難処理金鉱石のバイオオキシデーション

    田中 雅仁, 澤田 満, 笹木 圭子, 平島 剛, 沖部 奈緒子

    資源・素材学会  2014.3 

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    Event date： 2014.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京大学   Country：Japan  

  • Biooxidation of refractory gold ore concentrates using moderately thermophilic, acidophilic bacteria International conference

    Masahito Tanaka, Mitsuru Sawada, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    International Conference on Biological, Civil, and Environmental Engineering (BCEE-2014)  2014.3 

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    Event date： 2014.3

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Dubai   Country：United Arab Emirates  

  • Formation of biogenic scorodite (FeAsO4·2H2O) for treatment of As(III)-bearing copper refinery process solution Invited International conference

    Naoko Okibe

    Biotechnology and Chemistry for GREEN GROWTH  2014.3 

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    Event date： 2014.3

    Language：English   Presentation type：Oral presentation (invited, special)  

    Venue：Osaka   Country：Japan  

  • Formation of Pd(0) nanoparticles by bioreduction of Pd(II) using Fe(III)-reducing, acidophilic bacteria International conference

    Daisuke Nakayama, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    International Symposium on Earth Science and Technology 2013  2013.12 

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    Event date： 2013.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Biorecovery of vanadium (V) using Fe(III)-reducing, acidophilic bacterium, Acidocella aromatica strain PFBC International conference

    Masashi Maki, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    International Symposium on Earth Science and Technology 2013  2013.12 

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    Event date： 2013.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Fundamental study on Cr(VI) reduction by acidophilic Fe(III)-reducing bacterium International conference

    Yusei Masaki, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    International Symposium on Earth Science and Technology 2013  2013.12 

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    Event date： 2013.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • As(III)-oxidation activity of thermo-acidophilic iron sulfur-oxidizing archaeon, Acidianus brierleyi, and its use in biogenic scorodite (FeAsO4) formation International conference

    Shiori Morishita, Keiko Sasaki, Tsuyoshi Hirajima, Naoko Okibe

    International Symposium on Earth Science and Technology 2013  2013.12 

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    Event date： 2013.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • バイオマイニング研究の新展開

    沖部 奈緒子, 笹木 圭子

    日本生物工学会  2013.9 

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    Event date： 2013.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：広島   Country：Japan  

  • 好酸性鉄還元細菌によるCr(VI)還元に関する基礎的研究

    正木　悠聖, 沖部 奈緒子, 笹木 圭子, 平島 剛

    資源・素材学会  2013.9 

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    Event date： 2013.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：札幌   Country：Japan  

  • Acidocella sp. PFBC株を利用したV(V)のバイオリカバリーに関する研究

    牧　昌史, 沖部 奈緒子, 笹木 圭子, 平島 剛

    資源・素材学会  2013.9 

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    Event date： 2013.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：札幌   Country：Japan  

  • Simultaneous oxidation and immobilization of arsenite from refinery waste water by thermoacidophilic iron-oxidizing archaeon, Acidianus brierleyi International conference

    N Okibe, M Koga, K Sasaki, T Hirajima

    Biohydrometallurgy `12  2012.6 

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    Event date： 2013.6 - 2013.1

    Presentation type：Oral presentation (general)  

    Venue：Falmouth   Country：United Kingdom  

  • 好熱好酸性鉄硫黄酸化古細菌Acidianus brierleyiによるヒ素(As)酸化に関する研究

    森下志織, 沖部 奈緒子, 笹木 圭子, 平島 剛

    資源・素材学会  2013.5 

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    Event date： 2013.5

    Language：Japanese  

    Venue：熊本大学   Country：Japan  

  • 好酸性鉄還元細菌を利用したCr(Ⅵ)のバイオレメディエーションに関する研究

    正木悠聖, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会  2013.3 

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    Event date： 2013.3

    Presentation type：Oral presentation (general)  

    Venue：千葉   Country：Japan  

  • 好熱性古細菌を利用したAs(III)の不動化 Invited

    沖部奈緒子, 古賀雅晴, 笹木圭子, 平島剛, 平郡伸一, 浅野聡

    資源・素材学会  2013.3 

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    Event date： 2013.3

    Country：Japan  

  • 光合成細菌Rhodospirillum rubrim由来アルデヒド脱水素酵素遺伝子のクローニング

    沖部奈緒子、森川正章、天田啓、春木満、今中忠行、金谷茂則

    日本生物工学会  1997.9 

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    Presentation type：Oral presentation (general)  

    Venue：東京   Country：Japan  

  • Role of Pure and Mixed Cultures of Gram-Positive Eubacteria in Mineral Leaching

    KB Hallberg, N Okibe, DB Johnson

    14th International Biohydrometallurgy Symposium  2001.9 

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    Presentation type：Oral presentation (general)  

    Venue：Ouro Preto   Country：Brazil  

  • 石油分解/合成細菌HD-1株由来アルデヒド脱水素酵素の諸特性

    沖部奈緒子、森川正章、天田啓、春木満、今中忠行、金谷茂則

    日本生物工学会  1998.9 

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    Presentation type：Oral presentation (general)  

    Venue：広島   Country：Japan  

  • Oxidative Dissolution of Sulfide Minerals by Defined Mixed Populations of Moderately Thermophilic Microorganisms

    N Okibe, DB Johnson

    Conference of Society of General Microbiology  2001.9 

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    Presentation type：Oral presentation (general)  

    Venue：Edinburgh   Country：United Kingdom  

  • Bioleaching of pyrite by defined mixed cultures of moderately thermophilic thermophilic acidophiles

    DB Johnson, N Okibe

    14th International Biohydrometallurgy Symposium  2003.9 

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    Presentation type：Oral presentation (general)  

    Venue：Ouro Preto   Country：Brazil  

  • Bioleaching of pyrite by defined mixed populations of moderately thermophilic acidophiles in pH-controlled bioreactors

    N Okibe, DB Johnson

    15th International Biohydrometallurgy Symposium  2005.9 

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    Presentation type：Oral presentation (general)  

    Venue：Athens   Country：Greece  

  • Concentrate mineralogy dictates the composition of bioleaching microbial consortia

    DB Johnson, L Yajie, N Okibe, K Coupland, KB Hallberg

    17th International Biohydrometallurgy Symposium  2007.9 

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    Presentation type：Oral presentation (general)  

    Venue：Frankfurt   Country：Germany  

  • Effect of temperature on bioleaching of chalcopyrite concentrates containing high concentrations of silver: opposite rules apply

    L Yajie, N Okibe, DB Johnson

    17th International Biohydrometallurgy Symposium  2007.9 

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    Presentation type：Oral presentation (general)  

    Venue：Frankfurt   Country：Germany  

  • コリネ型細菌における誘導プロモーターの単離と解析

    沖部奈緒子、鈴木伸昭、乾将行、湯川英明

    日本農芸化学会大会  2009.3 

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    Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • コリネ型細菌における効率的な染色体導入のための温度感受性プラスミドの開発

    沖部奈緒子、鈴木伸昭、乾将行、湯川英明

    日本農芸化学会大会  2010.3 

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    Presentation type：Oral presentation (general)  

    Venue：東京   Country：Japan  

  • バイオマイニング -微生物による金属資源開発-

    沖部奈緒子、鈴木伸昭、乾将行、湯川英明

    日本農芸化学会大会  2011.3 

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    Presentation type：Symposium, workshop panel (public)  

    Venue：京都   Country：Japan  

  • コリネ型細菌由来pCGR2、pCG1プラスミドのコピー数制御機構

    沖部奈緒子、鈴木伸昭、乾将行、湯川英明

    日本農芸化学会大会  2011.3 

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    Presentation type：Oral presentation (general)  

    Venue：京都   Country：Japan  

  • 好熱性鉄酸化菌を利用したヒ素(Ⅲ)の不動化に関する研究

    古賀雅晴, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会  2011.9 

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    Presentation type：Oral presentation (general)  

    Venue：大阪   Country：Japan  

  • Immobilization of arsenite from the refining discharge using Acidianus brierleyi in the presence of pyrite

    K Sasaki, M Koga, K Takatsugi, N Okibe, T Hirajima, S Asano, S Heguri

    International Biohydrometallurgy Symposium  2011.9 

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    Presentation type：Oral presentation (general)  

    Venue：Changsha   Country：China  

  • Spectroscopic study on role of Acidithiobacillus caldus in bioleaching of chalcopyrite

    K Sasaki, K Takatsugi, N Okibe, T Hirajima, Olli Touvinen

    International Biohydrometallurgy Symposium  2011.9 

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    Presentation type：Oral presentation (general)  

    Venue：Changsha   Country：China  

  • Flocculation of quarts by microorganisms

    T Hirajima, Y Aiba, M Farahat, N Okibe, K Sasaki, T Tsuruta, K Doi

    International Biohydrometallurgy Symposium  2011.9 

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    Presentation type：Oral presentation (general)  

    Venue：Changsha   Country：China  

  • Immobilization of arsenite from the refining discharge using a thermophilic acidophilic iron-oxidizing archaeon, Acidianus brierleyi

    Masaharu Koga, Naoko Okibe, Keiko Sasaki, Tsuyoshi Hirajima

    International Symposium on Earth Science and Technology 2011  2011.12 

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    Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Recovery of selenium from copper refinery waste water using a selenate-reducing bacterium, Thauera selenatis

    Mikoto Koga, Kiyomasa Sueishi, Naoko Okibe, Keiko Sasaki and Tsuyoshi Hirajima

    International Symposium on Earth Science and Technology 2011  2011.12 

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    Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • Isolation of a manganese oxidizing bacterium from Sanbe hot spring in Shimane, Japan

    Masashi Maki, Naoko Okibe, Keiko Sasaki, Tsuyoshi Hirajima

    International Symposium on Earth Science and Technology 2011  2011.12 

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    Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • 好熱性鉄酸化菌Acidianus brierleyi を用いた産業廃水中の亜ヒ酸不動化に関する研究

    古賀雅晴, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会  2012.3 

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    Presentation type：Oral presentation (general)  

    Venue：東京   Country：Japan  

  • セレン還元菌Thauera selenatis を利用した産業廃液中のSe 資源回収に関する研究

    古賀美琴, 末石清昌, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会  2012.3 

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    Presentation type：Oral presentation (general)  

    Venue：東京   Country：Japan  

  • 好熱性鉄酸化古細菌を用いた産業排水中の亜ヒ酸不動化に関する研究

    古賀雅晴, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会  2012.9 

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    Presentation type：Oral presentation (general)  

    Venue：秋田   Country：Japan  

  • 好酸性鉄還元細菌を利用したCr(Ⅵ)のバイオレメディエーションに関する研究

    正木悠聖, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会  2012.9 

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    Presentation type：Oral presentation (general)  

    Venue：秋田   Country：Japan  

  • 三瓶温泉からのマンガン酸化微生物の単離・同定および諸特性の解析

    牧昌史, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会  2012.9 

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    Presentation type：Oral presentation (general)  

    Venue：秋田   Country：Japan  

  • Effect of microbial community and solution redox potential on the bioleaching of tennantite concentrate International conference

    #Shota Kondo, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Organic leaching of refractory nickel laterite ore International conference

    #Brian Kisia Nzuki, @Kasun Godigamuwa, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • The synergistic effect of the glycine-thiosulfate system for gold leaching International conference

    @Kasun Godigamuwa, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Selective recovery of critical metals from spent catalysts International conference

    #Idol Phann, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • Combination of microbial As(III) oxidation and waste Fe-sludge for As removal International conference

    #Yuika Kawazoe, @Yuya Sato, @Taiki Katayama, @Tetsuo Yasutaka, @Naoko Okibe

    International Symposium on Earth Science and Technology 2023  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kyushu University, Fukuoka   Country：Japan  

  • 微生物を利用した産業廃液からのSeの資源回収

    古賀美琴, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会　九州支部大会  2011.6 

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    Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • 好熱性鉄酸化菌を用いたヒ素(III)の不動化に関する研究

    古賀雅晴, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会　九州支部大会  2011.6 

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    Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • 好酸性鉄還元細菌を利用したCr(Ⅵ)のバイオレメディエーションに関する研究

    正木悠聖, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会　九州支部大会  2012.5 

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    Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

  • 三瓶温泉からのマンガン酸化微生物の単離・同定および諸特性の解析

    牧昌史, 沖部奈緒子, 笹木圭子, 平島剛

    資源・素材学会　九州支部大会  2012.5 

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    Presentation type：Oral presentation (general)  

    Venue：福岡   Country：Japan  

▼display all

MISC

  • 微生物の力を活用した金属製錬法の開発 ～バイオハイドロメタラジーによる金属資源開発技術でサステイナブルな社会創生を目指す～

    沖部 奈緒子

    MDB 技術予測レポート（マテリアル・デバイス・プロセス分野）発行：株式会社日本能率協会総合研究所   2022.2

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    Language：Japanese  

  • “バイオハイドロメタラジーのすゝめ　第5回 23rd International Biohydrometallurgy Symposium (IBS2019) 開催報告”

    笹木圭子、沖部奈緒子、菅井裕一、三木一、工藤淳子

    資源と素材 2020   2020.10

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

  • “バイオハイドロメタラジーのすゝめ　第4回 23rd International Biohydrometallurgy Symposium (IBS2019) 開催報告”

    笹木圭子、沖部奈緒子、菅井裕一、三木一、工藤淳子

    資源と素材 2020   2020.4

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

  • “MMIJ支部教育活動報告: 2019年度 総会・若手研究者および技術者の研究発表会・春季例会 開催報告”

    沖部 奈緒子

    資源と素材 2019 夏号 Vol.4 (2019) No.3   2019.7

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

  • “バイオハイドロメタラジーによる鉱物処理と金属汚染水処理”

    沖部 奈緒子

    生物工学 Vol.97 No.4   2019.4

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

  • “MMIJ支部教育活動報告: 平成30年度 総会・若手研究者および技術者の研究発表会・春季例会 開催報告”

    沖部 奈緒子

    資源と素材 2018 夏号 Vol.3 (2018) No.3   2018.7

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

  • “支部活動報告: 平成29年度 国際シンポジウム開催報告 International Symposium on Earth Science and Technology 2017”

    沖部 奈緒子

    資源と素材 2018 春号 Vol.3 (2018) No.2   2018.4

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

  • “バイオハイドロメタラジーのすゝめ　第1回 バイオハイドロメタラジーって何？”

    沖部 奈緒子

    資源と素材 2018 Vol.3 No.2   2018.4

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

  • “支部活動報告: 資源・素材学会 九州支部 平成29年度 現地研究会 開催報告”

    沖部 奈緒子

    資源と素材 2018 新年号 Vol.3 (2018) No.1   2018.1

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

  • “MMIJ支部教育活動報告: 平成29年度 総会・若手研究者および技術者の研究発表会・春季例会 開催報告”

    沖部 奈緒子

    資源と素材 2017 秋号 Vol.2 (2017) No.4   2017.10

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

  • 好酸性鉄還元細菌を利用したバナジウム(V)の新規バイオリカバリー技術の開発

    沖部奈緒子

    新井科学技術振興財団事業年報   2017.7

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

    好酸性鉄還元細菌を利用したバナジウム(V)の新規バイオリカバリー技術の開発

  • “支部活動報告: 平成28年度 国際シンポジウム開催報告 International Symposium on Earth Science and Technology 2016”

    沖部 奈緒子

    資源と素材 2017 春号 Vol.2 (2017) No.2   2017.4

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

  • “支部活動報告: 資源・素材学会 九州支部 平成28年度 現地研究会 開催報告”

    沖部 奈緒子

    資源と素材 2017 新年号 Vol.2 (2017) No.1   2017.1

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    Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

  • “好熱好酸性・鉄酸化古細菌を利用した亜ヒ酸含有廃液処理”

    沖部 奈緒子

    バイオサイエンスとインダストリー(B&I) Vol.72 No.3   2014.5

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

  • “バイオマイニング―効果的な鉱物分解を目指した微生物群の探索―”

    沖部　奈緒子

    環境バイオテクノロジー学会誌, Vol.11, No. 1-2, pp.39–46   2011.11

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

  • “Development of microbial consortia for bioleaching: Investigation of a “Top Down” approach, using different mineral concentrates and ores”

    N Okibe, Y Liu, KB Hallberg, DB Johnson

    BioMinE Deliverable DII.4: Microbial consortia and mineral processing. pp 196-253   2008.10

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    Publishing type：Internal/External technical report, pre-print, etc.  

  • “Survey of bioleaching reactor microbial communities”

    KB Hallberg, N Okibe, Y Liu, DB Johnson

    BioMinE Deliverable DII.4: Microbial consortia and mineral processing. pp 326-334   2008.10

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    Language：English   Publishing type：Internal/External technical report, pre-print, etc.  

  • “Bioleaching of a cobaltiferous pyrite concentrate”

    Y Liu, N Okibe, DB Johnson

    BioMinE Deliverable DII.4: Microbial consortia and mineral processing. pp 277-325   2008.10

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    Publishing type：Internal/External technical report, pre-print, etc.  

  • “Effect of temperature on bioleaching of chalcopyrite concentrates”

    Y Liu, N Okibe, DB Johnson

    BioMinE Deliverable DII.4: Microbial consortia and mineral processing. pp 254-276   2008.10

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    Publishing type：Internal/External technical report, pre-print, etc.  

  • 資源・素材2022(福岡) : 2022年度資源・素材関係学協会合同秋季大会

    沖部 奈緒子

    季刊資源と素材   8 ( 1 )   72 - 75   2023   （ ISSN:2189-941X ）

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    Language：Japanese   Publisher：資源・素材学会  

    CiNii Books

    CiNii Research

    researchmap

  • バイオハイドロメタラジーのすゝめ 第1回 バイオハイドロメタラジーって何?

    沖部奈緒子

    季刊資源と素材   2018.4

    　More details

    Language：Japanese  

    バイオハイドロメタラジーのすゝめ 第1回 バイオハイドロメタラジーって何?

  • バイオマイニング : 効果的な鉱物分解を目指した微生物群の探索 (特集総説 Geomicrobiology(地球微生物学)と環境バイオテクノロジー)

    沖部 奈緒子

    Journal of environmental biotechnology   2011.12

    　More details

    Language：Japanese  

    Biomining : Microbial Consortia for Effective Mineral Dissolution

▼display all

Industrial property rights

Patent   Number of applications: 10   Number of registrations: 6
Utility model   Number of applications: 0   Number of registrations: 0
Design   Number of applications: 0   Number of registrations: 0
Trademark   Number of applications: 0   Number of registrations: 0

Professional Memberships

  • The Mining and Materials Processing Institute of Japan

  • The Society for Biotechnology, Japan

  • Japan Society for Environmental Biotechnology

Committee Memberships

  • マンガン 酸化菌利用処理技術等調査研究ワーキンググループ 委員   Steering committee member   Domestic

    2021.10 - 2022.3   

  • 経産省 休廃止鉱山におけるグリーン・レメディエーション（元山回帰）調査研究委員会   Steering committee member   Domestic

    2021.9 - 2022.3   

  • 資源・素材学会   Organizer   Domestic

    2021.4 - 2022.3   

  • 資源・素材学会   庶務幹事   Domestic

    2021.4 - 2022.3   

  • 日本学術振興会 (JSPS)   Steering committee member   Domestic

    2020.7 - 2021.6   

  • 日本学術振興会 (JSPS)   特別研究員等審査会専門委員および国際事業委員会書面審査員・書面評価員   Domestic

    2020.7 - 2021.6   

  • JOGMEC 業務評価委員会   Steering committee member   Domestic

    2020.4 - Present   

  • JOGMEC 業務評価委員会   業務評価委員   Domestic

    2020.4 - Present   

  • 資源・素材学会   Organizer   Domestic

    2020.4 - 2021.3   

  • 資源・素材学会   庶務幹事   Domestic

    2020.4 - 2021.3   

  • 日本学術振興会 (JSPS)   Steering committee member   Domestic

    2019.12 - 2021.3   

  • 日本学術振興会 (JSPS)   素材プロセシング 第69委員会   Domestic

    2019.12 - 2021.3   

  • 資源・素材学会   Organizer   Domestic

    2019.4 - 2020.3   

  • 資源・素材学会   庶務幹事   Domestic

    2019.4 - 2020.3   

  • JOGMEC 業務評価委員会   Steering committee member   Domestic

    2018.4 - 2024.3   

  • JOGMEC 業務評価委員会   業務評価委員   Domestic

    2018.4 - 2024.3   

  • 経産省 休廃止鉱山におけるグリーン・レメディエーション（元山回帰）調査研究委員会   Steering committee member   Domestic

    2018.4 - 2021.3   

  • JOGMEC 業務評価委員会   Steering committee member   Domestic

    2018.4 - 2020.3   

  • JOGMEC 業務評価委員会   業務評価委員   Domestic

    2018.4 - 2020.3   

  • 資源・素材学会   Organizer   Domestic

    2018.4 - 2019.3   

  • 資源・素材学会   庶務幹事   Domestic

    2018.4 - 2019.3   

  • 資源・素材学会   Organizer   Domestic

    2017.4 - 2018.3   

  • 資源・素材学会   庶務幹事   Domestic

    2017.4 - 2018.3   

  • 資源・素材学会   Organizer   Domestic

    2016.4 - 2017.3   

  • 資源・素材学会   庶務幹事   Domestic

    2016.4 - 2017.3   

  • 資源・素材学会   Organizer   Domestic

    2015.4 - 2016.3   

  • 資源・素材学会   幹事   Domestic

    2015.4 - 2016.3   

  • 資源・素材学会   Organizer   Domestic

    2014.4 - 2015.3   

  • 資源・素材学会   幹事   Domestic

    2014.4 - 2015.3   

  • 資源・素材学会   Organizer   Domestic

    2013.4 - 2014.3   

  • 資源・素材学会   幹事   Domestic

    2013.4 - 2014.3   

  • 資源・素材学会   常議員   Domestic

    2011.6 - 2019.3   

▼display all

Academic Activities

  • 座長（Chairmanship） International contribution

    EraGET  （ Institute of Technology of Cambodia (ITC) Cambodia ） 2023.9

    　More details

    Type：Competition, symposium, etc. 

  • Screening of academic papers

    Role(s)： Peer review

    2023

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：15

    Number of peer-reviewed articles in Japanese journals：2

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2022.3

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    Type：Competition, symposium, etc. 

  • Screening of academic papers

    Role(s)： Peer review

    2022

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：22

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2021.9

    　More details

    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2021.3

    　More details

    Type：Competition, symposium, etc. 

  • Screening of academic papers

    Role(s)： Peer review

    2021

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：14

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2020.9

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    Type：Competition, symposium, etc. 

  • Screening of academic papers

    Role(s)： Peer review

    2020

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：7

  • Local Organizer International contribution

    23rd International Biohydrometallurgy Symposium 2019  （ Acros Fukuoka Japan ） 2019.10

    　More details

    Type：Competition, symposium, etc. 

  • 座長（Chairmanship） International contribution

    23rd International Biohydrometallurgy Symposium 2019  （ Acros Fukuoka Japan ） 2019.10

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2019.3

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    Type：Competition, symposium, etc. 

  • Screening of academic papers

    Role(s)： Peer review

    2019

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：9

    Number of peer-reviewed articles in Japanese journals：1

  • 実行委員

    資源・素材学会  （ Japan ） 2018.9

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2018.3

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    Type：Competition, symposium, etc. 

  • Screening of academic papers

    Role(s)： Peer review

    2018

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：9

    Number of peer-reviewed articles in Japanese journals：0

  • 座長（Chairmanship） International contribution

    International Symposium on Earth Science and Technology 2017  （ Japan ） 2017.11 - 2017.12

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    Type：Competition, symposium, etc. 

  • 資源と素材

    2017.4 - Present

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    Type：Academic society, research group, etc. 

  • Screening of academic papers

    Role(s)： Peer review

    2017

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：5

    Number of peer-reviewed articles in Japanese journals：1

  • 座長（Chairmanship） International contribution

    International Symposium on Earth Science and Technology 2016  （ Japan ） 2016.12

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    Type：Competition, symposium, etc. 

  • 司会

    資源・素材学会  （ Japan ） 2016.9

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2016.9

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    Type：Competition, symposium, etc. 

  • 座長

    資源・素材学会  （ Japan ） 2016.6

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2016.6

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    Type：Competition, symposium, etc. 

  • Minerals International contribution

    2016.4 - Present

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    Type：Academic society, research group, etc. 

  • 座長

    資源・素材学会  （ Japan ） 2016.3

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2016.3

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    Type：Competition, symposium, etc. 

  • 座長 International contribution

    International Biohydrometallurgy Symposium 2015  （ Bali Indonesia ） 2015.10

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship） International contribution

    International Biohydrometallurgy Symposium 2015  （ Bali Indonesia ） 2015.10

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    Type：Competition, symposium, etc. 

  • 座長

    資源・素材学会  （ Japan ） 2015.9

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2015.9

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    Type：Competition, symposium, etc. 

  • 座長 International contribution

    International Symposium on Earth Science and Technology 2014  （ Japan ） 2014.12

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship） International contribution

    International Symposium on Earth Science and Technology 2014  （ Japan ） 2014.12

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    Type：Competition, symposium, etc. 

  • 座長

    資源・素材学会  （ Japan ） 2014.9

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2014.9 - 2015.9

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    Type：Competition, symposium, etc. 

  • 座長

    資源・素材学会  （ Japan ） 2014.3

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2014.3

    　More details

    Type：Competition, symposium, etc. 

  • 座長 International contribution

    International Symposium on Earth Science and Technology 2013  （ Japan ） 2013.12

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship） International contribution

    International Symposium on Earth Science and Technology 2013  （ Japan ） 2013.12

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    Type：Competition, symposium, etc. 

  • 座長

    資源・素材学会  （ Japan ） 2013.9

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2013.9

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    Type：Competition, symposium, etc. 

  • 座長

    資源・素材学会  （ Japan ） 2013.3

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2013.3

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    Type：Competition, symposium, etc. 

  • 座長

    資源・素材学会  （ Japan ） 2012.3

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship）

    資源・素材学会  （ Japan ） 2012.3

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    Type：Competition, symposium, etc. 

  • 座長 International contribution

    International Symposium on Earth Science and Technology 2011  （ Japan ） 2011.12

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    Type：Competition, symposium, etc. 

  • 座長（Chairmanship） International contribution

    International Symposium on Earth Science and Technology 2011  （ Japan ） 2011.12

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    Type：Competition, symposium, etc. 

▼display all

Other

  • International Biohydrometallurgy Symposium (IBS) の日本誘致と開催

    2019.9

    　More details

    International Biohydrometallurgy Symposium (IBS) を初めて日本へ誘致、福岡で開催した。IBSは、これまで欧州、北米、南米、豪州、南アを中心に、1977年より2年毎に開催されてきた。アジアでは、中国、インドネシアに続き、今回、Local Organizing Committeeとして日本に初めて誘致した。

  • 第40回 資源・素材学会 奨励賞 「超好酸性微生物の鉱物処理および環境修復への利用に関する研究」

    2015.3

  • 平成26年度 クリタ水・環境科学研究 優秀賞 「極限環境微生物を利用した金属含有廃液処理」

    2014.8

Research Projects

  • Harnessing Deep-Sea Resources for Domestic Critical Metal Supply: Innovations in Nano- and Bio-Collaborative Technologies

    Grant number：24K21239  2024.6 - 2028.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Pioneering)

    沖部 奈緒子

    　 More details

    Grant type：Scientific research funding

    Carbon Neutral技術のキーとなる金属種に富む国産海底資源 (主にCRC・MN)を対象とし, これら難処理性の複雑金属酸化物を国内にてクリーン且つコンパクトに処理するゲームチェンジャー技術「次世代型ナノ・バイオ協奏湿式製錬プロセス」の開拓に挑む。リバースギアバイオリーチング、バイオミミクリーによる腐食物質の光分解、Nano-ZVIが駆動する酸化鉱の還元溶解を組合わせ、これらの協奏反応が還元雰囲気&電子ドナーを提供し続け, RG・バイオリーチング活性と反応持続性を強化する。

    CiNii Research

  • 酸性坑廃水・製錬廃液中のAs新規浄化法開発 (JOGMEC)

    2024.4 - 2025.3

    JOGMEC 

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    Authorship：Principal investigator 

  • ヒ素のパッシブトリートメント法の開発 (住友金属鉱山 共同研究)

    2024.4 - 2025.3

    九州大学 

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    Authorship：Principal investigator 

  • ヒ素汚染水の新規パッシブトリートメント法開発

    2024.4 - 2025.2

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • ヒ素のパッシブトリートメント法の開発

    2024.4

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 都市鉱山資源のための新規リーチング法の開発

    2024

    　 More details

    Grant type：Donation

  • New hybrid-bioprocess for treatment and recycling of heavy metals

    Grant number：23KF0265  2023.11 - 2026.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for JSPS Fellows

    沖部 奈緒子, MANNACHARAJU MAHESH

    　 More details

    Grant type：Scientific research funding

    従来のAMD処理には、化学沈殿・アルカリ中和・吸着・膜技術などがある。一方、近年注目されているパッシブトリートメントには、石灰石ドレン・人工湿地・透水性反応バリア・硫酸還元リアクターなどがある。化学薬品を使用する場合、二次的に有害な化学薬品汚泥が発生し、確実に埋立処理するためにはさらなる処理が必要となる。AMDからの金属類の生物学的回収は、自然反応に基づく処理であること、運用コストが低いことなどから注目されている。本研究では、硫化物生成リアクター、生体触媒リアクター、鉄・マンガン酸化型リアクターを開発することにより、新しいハイブリッド連続型処理プロセスを開発する。

    CiNii Research

  • 海底熱水鉱床に係る選鉱・製錬技術調査

    2023.9

    Research commissions

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • コバルトリッチクラスト選鉱・製錬技術調査

    2023.9

    Research commissions

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 海底熱水鉱床に係る選鉱・製錬技術調査研究 (JOGMEC)

    2023.9

    JOGMEC 

    　 More details

    Authorship：Principal investigator 

  • コバルトリッチクラスト選鉱・製錬技術調査 (JOGMEC)

    2023.9

    JOGMEC 

    　 More details

    Authorship：Principal investigator 

  • 都市鉱山資源のための新規リーチング法の開発

    2023

    　 More details

    Grant type：Donation

  • ラボ試験を中心としたMn酸化菌の接触酸化方式の処理メカニズムの解明

    2022.8 - 2024.2

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • ヒ素汚染水の新規パッシブトリートメント法開発

    2022.7 - 2024.2

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • チオカルボニル触媒を用いた黄銅鉱リーチング技術開発（学術指導）

    2022.4 - 2023.3

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 菱刈温泉中のヒ素酸化機構の解明（学術指導）

    2022.4 - 2023.3

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 工学研究院研究資金

    2022

    　 More details

    Grant type：Donation

  • 酸性坑廃水・製錬廃液中のMnおよびAsの新規浄化法開発

    2021.7 - 2022.2

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 自己再生バイオミネラルを介した二大金属汚染水のループ型浄化/二次資源化への挑戦 (科研　挑戦的研究(萌芽))

    2021.4 - 2024.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • Mn酸化細菌利用による浄水プロセス開発（学術指導）

    2021.4 - 2023.3

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • ヒ素含有銅精鉱/鉱石のバイオリーチング技術開発（学術指導）

    2021.4 - 2022.3

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • ヒ素含有銅精鉱 鉱石 のバイオリーチング技術開発 (住友金属鉱山 共同研究)

    2021.4 - 2022.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • 自己再生バイオミネラルを介した二大金属汚染水のループ型浄化/二次資源化への挑戦

    Grant number：21K18922  2021 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Challenging Research(Exploratory)

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

  • ゼロエミッション付加価値創製型：都市鉱山オーガニックハイドロプロセシングの開発 (科研　基盤A)

    2020.4 - 2024.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • ゼロエミッション付加価値創製型：都市鉱山オーガニックハイドロプロセシングの開発

    Grant number：20H00647  2020 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

  • 酸性坑廃水・製錬廃液中のMnおよびAsの新規浄化法開発 (JOGMEC)

    2019.7 - 2024.3

    JOGMEC 

    　 More details

    Authorship：Principal investigator 

  • 工学研究院研究資金

    2019

    　 More details

    Grant type：Donation

  • 次世代ハイブリッド型バイオ製錬：未利用地下・地上資源からの有価金属スカベンジング

    2019

    工学研究院大型科研費申請支援助成

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    Authorship：Principal investigator  Grant type：On-campus funds, funds, etc.

  • 工学研究院研究資金

    2018

    　 More details

    Grant type：Donation

  • 銅原料中の不純物低減技術開発事業

    2017.4 - 2021.3

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 銅原料中の不純物低減技術開発事業 (JOGMEC)

    2017.4 - 2021.3

    JOGMEC 

    　 More details

    Authorship：Principal investigator 

  • 工学研究院研究資金

    2017

    　 More details

    Grant type：Donation

  • Mn酸化細菌利用による浄水プロセス開発

    2016.4 - 2021.3

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 遺伝子工学による高効率ヒ素酸化バイオマイニング細菌株の創製とその資源工学的評価 (科研　萌芽)

    2016.4 - 2018.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • 都市鉱山を目覚めさせる：バイオハイドロメタロジーによる地上資源プロセシングの革新 (科研　基盤B)

    2016.4 - 2018.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • 遺伝子工学による高効率ヒ素酸化バイオマイニング細菌株の創製とその資源工学的評価

    Grant number：16K14522  2016 - 2018

    Grants-in-Aid for Scientific Research  Grant-in-Aid for challenging Exploratory Research

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

  • 都市鉱山を目覚めさせる：バイオハイドロメタロジーによる地上資源プロセシングの革新

    Grant number：16H04616  2016 - 2018

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

  • 工学研究院研究資金

    2016

    　 More details

    Grant type：Donation

  • マンガン酸化細菌によるMn浄水プロセスの開発 (住友金属鉱山 共同研究)

    2015.4 - 2023.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • Mn酸化細菌利用による浄水プロセス開発（学術指導）

    2015.4 - 2016.3

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 高ヒ素含有銅鉱石ミネラルプロセシングのイノベーション

    Grant number：15H02333  2015 - 2017

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    　 More details

    Grant type：Scientific research funding

  • 超好酸性鉄酸化菌を利用した「新規バイオスコロダイト法」によるヒ素(As)含有廃液処理技術の開発

    2015

    　 More details

    Grant type：Donation

  • 工学研究院研究資金

    2015

    　 More details

    Grant type：Donation

  • 超好酸性鉄酸化菌を利用した「新規バイオスコロダイト法」によるヒ素(As)含有廃液処理技術の開発 (クリタ水・環境化学振興財団)

    2014.10 - 2015.9

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • 超好酸性細菌を利用したレアメタル資源の新規バイオ回収技術の開発 (科研　若手B)

    2014.4 - 2016.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • 超好酸性細菌を利用したレアメタル資源の新規バイオ回収技術の開発

    Grant number：26820394  2014 - 2015

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

  • 工学研究院研究資金

    2014

    　 More details

    Grant type：Donation

  • 超好酸性鉄酸化菌を利用した「新規バイオスコロダイト法」によるヒ素(As)含有廃液処理技術の開発

    2014

    　 More details

    Grant type：Donation

  • 難処理金鉱石の処理技術の開発

    2013.4 - 2014.3

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 難処理金鉱石の浸出技術の開発 (住友金属鉱山 共同研究)

    2013.4 - 2014.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • 好酸性鉄還元細菌を利用したバナジウム（Ｖ）の新規バイオリカバリー技術の開発

    2013

    　 More details

    Grant type：Donation

  • 古細菌を利用した新規ヒ素不動化バイオプロセスの開発

    Grant number：24760689  2012 - 2013

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

  • 好酸性鉄還元細菌を利用した重金属および放射性元素の新規バイオレメディエーション技術開発

    2012

    九州大学教育研究プログラム・研究拠点形成プロジェクト

    　 More details

    Authorship：Principal investigator  Grant type：On-campus funds, funds, etc.

  • 好熱性鉄酸化古細菌を活用したヒ酸塩の生成に関する研究

    2011.4 - 2013.3

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 硫酸イオン共存下にけるセレン酸イオンの分離に関する研究

    2011.4 - 2013.3

    Joint research

    　 More details

    Authorship：Principal investigator  Grant type：Other funds from industry-academia collaboration

  • 好熱性鉄酸化古細菌を活用したヒ酸塩の生成に関する研究 (住友金属鉱山 共同研究)

    2011.4 - 2013.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • 硫酸イオン共存下にけるセレン酸イオンの分離に関する研究 (住友金属鉱山 共同研究)

    2011.4 - 2013.3

    九州大学 

    　 More details

    Authorship：Principal investigator 

  • バイオフィルムによるレアメタル不動化機構の解明

    Grant number：23810024  2011

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (Start-up)

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

  • 新規好酸性細菌由来EPS(細胞外ポリマー）を利用した排水からのレアメタル回収技術の開発

    2011

    　 More details

    Grant type：Donation

  • 放射性核種の除去を目的としたバイオソープションに関する研究

    2011

    工学研究院若手研究者育成研究助成

    　 More details

    Authorship：Principal investigator  Grant type：On-campus funds, funds, etc.

  • ナノジオサイエンスに基づく環境材料の探索と創出

    Grant number：22246117  2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    　 More details

    Grant type：Scientific research funding

▼display all

Educational Activities

  • 大学院教育
    　資源処理・環境修復工学特論 第一
    　資源処理・環境修復工学特論 第三
    　資源処理・環境修復工学特論 実験第一
    　資源処理・環境修復工学特論 実験第二
    　Practical Environmental System Engineering
    　
    学部教育
    　資源地球生化学
    　地球システム工学インターンシップ
    　地球環境工学卒業研究

Award for Educational Activities

  • 2017年度 「工学講義賞」受賞

       

Class subject

  • 資源処理・環境修復工学特論第三

    2025   Full year

  • 資源処理・環境修復工学特論第一

    2025   Spring quarter

  • 資源処理・環境修復工学特論実験第一

    2025   Full year

  • 資源処理・環境修復工学特論実験第二

    2025   Full year

  • 資源地球生化学

    2025   Summer quarter

  • 資源処理・環境修復工学特論第二

    2023.12 - 2024.2   Winter quarter

  • 資源処理工学

    2023.10 - 2023.12   Fall quarter

  • 資源微生物工学

    2023.10 - 2023.12   Fall quarter

  • 地球環境化学

    2023.10 - 2023.12   Fall quarter

  • 資源処理・環境修復工学特論実験第一

    2023.4 - 2024.3   Full year

  • 資源処理・環境修復工学特論実験第二

    2023.4 - 2024.3   Full year

  • 生物学概論

    2023.4 - 2023.9   First semester

  • 資源システム工学実験第一

    2023.4 - 2023.9   First semester

  • 基礎生物学概要

    2023.4 - 2023.9   First semester

  • 資源処理・環境修復工学特論第二

    2022.12 - 2023.2   Winter quarter

  • 地球資源B

    2022.12 - 2023.2   Winter quarter

  • 国際環境システム工学特別コースCL2

    2022.10 - 2023.3   Second semester

  • 資源処理・環境修復工学特論 第二

    2022.10 - 2023.3   Second semester

  • 資源処理工学

    2022.10 - 2022.12   Fall quarter

  • 資源処理工学

    2022.10 - 2022.12   Fall quarter

  • 資源微生物工学

    2022.10 - 2022.12   Fall quarter

  • 地球環境化学

    2022.10 - 2022.12   Fall quarter

  • 資源微生物工学

    2022.10 - 2022.12   Fall quarter

  • 資源処理工学

    2022.10 - 2022.12   Fall quarter

  • 資源処理・環境修復工学特論実験第一

    2022.4 - 2023.3   Full year

  • 資源処理・環境修復工学特論実験第二

    2022.4 - 2023.3   Full year

  • 工学概論

    2022.4 - 2022.9   First semester

  • 地球システム工学インターンシップ

    2022.4 - 2022.9   First semester

  • 資源処理・環境修復工学特論 第三

    2022.4 - 2022.9   First semester

  • 資源処理・環境修復工学特論 実験第一

    2022.4 - 2022.9   First semester

  • 資源処理・環境修復工学特論 実験第二

    2022.4 - 2022.9   First semester

  • 生物学概論

    2022.4 - 2022.9   First semester

  • 生物学概論

    2022.4 - 2022.9   First semester

  • 資源処理・環境修復工学特論第二

    2021.12 - 2022.2   Winter quarter

  • 地球資源B

    2021.12 - 2022.2   Winter quarter

  • 地球環境工学入門2

    2021.10 - 2022.3   Second semester

  • 資源システム工学実験第二

    2021.10 - 2022.3   Second semester

  • 資源処理・環境修復工学特論 第二

    2021.10 - 2022.3   Second semester

  • 国際環境システム工学特別コースCL2

    2021.10 - 2022.3   Second semester

  • 環境微生物学

    2021.10 - 2021.12   Fall quarter

  • 資源処理工学

    2021.10 - 2021.12   Fall quarter

  • 資源微生物工学

    2021.10 - 2021.12   Fall quarter

  • 資源処理工学

    2021.10 - 2021.12   Fall quarter

  • 粉体工学

    2021.10 - 2021.12   Fall quarter

  • 資源微生物工学

    2021.10 - 2021.12   Fall quarter

  • 資源処理・環境修復工学特論実験第一

    2021.4 - 2022.3   Full year

  • 資源処理・環境修復工学特論実験第二

    2021.4 - 2022.3   Full year

  • 地球システム工学インターンシップ

    2021.4 - 2021.9   First semester

  • 資源処理・環境修復工学特論 第三

    2021.4 - 2021.9   First semester

  • 資源処理・環境修復工学特論 実験第一

    2021.4 - 2021.9   First semester

  • 資源処理・環境修復工学特論 実験第二

    2021.4 - 2021.9   First semester

  • 地球環境工学入門1

    2021.4 - 2021.9   First semester

  • 生物学概論

    2021.4 - 2021.9   First semester

  • 生物学概論

    2021.4 - 2021.9   First semester

  • 資源処理・環境修復工学特論第二

    2020.12 - 2021.2   Winter quarter

  • 地球環境工学入門2

    2020.10 - 2021.3   Second semester

  • 資源システム工学実験第二

    2020.10 - 2021.3   Second semester

  • 資源処理・環境修復工学特論 第二

    2020.10 - 2021.3   Second semester

  • 国際環境システム工学特別コースCL2

    2020.10 - 2021.3   Second semester

  • 資源微生物工学

    2020.10 - 2020.12   Fall quarter

  • 資源処理工学

    2020.10 - 2020.12   Fall quarter

  • 資源微生物工学

    2020.10 - 2020.12   Fall quarter

  • 粉体工学

    2020.10 - 2020.12   Fall quarter

  • 資源処理工学

    2020.10 - 2020.12   Fall quarter

  • 環境微生物学

    2020.10 - 2020.12   Fall quarter

  • 資源処理・環境修復工学特論実験第一

    2020.4 - 2021.3   Full year

  • 資源処理・環境修復工学特論実験第二

    2020.4 - 2021.3   Full year

  • 地球システム工学インターンシップ

    2020.4 - 2020.9   First semester

  • 資源処理・環境修復工学特論 第三

    2020.4 - 2020.9   First semester

  • 資源処理・環境修復工学特論 実験第一

    2020.4 - 2020.9   First semester

  • 資源処理・環境修復工学特論 実験第二

    2020.4 - 2020.9   First semester

  • 地球環境工学入門1

    2020.4 - 2020.9   First semester

  • 基礎生物学概要

    2020.4 - 2020.9   First semester

  • 基礎生物学概要

    2020.4 - 2020.9   First semester

  • 資源処理・環境修復工学特論第二

    2019.12 - 2020.2   Winter quarter

  • 地球環境工学入門2

    2019.10 - 2020.3   Second semester

  • 資源システム工学実験第二

    2019.10 - 2020.3   Second semester

  • 国際環境システム工学特別コースCL2

    2019.10 - 2020.3   Second semester

  • 資源処理・環境修復工学特論 第二

    2019.10 - 2020.3   Second semester

  • 資源微生物工学

    2019.10 - 2019.12   Fall quarter

  • 粉体工学

    2019.10 - 2019.12   Fall quarter

  • 資源処理工学

    2019.10 - 2019.12   Fall quarter

  • 環境微生物学

    2019.10 - 2019.12   Fall quarter

  • 資源処理工学

    2019.10 - 2019.12   Fall quarter

  • 資源微生物工学

    2019.10 - 2019.12   Fall quarter

  • 資源処理・環境修復工学特論実験第一

    2019.4 - 2020.3   Full year

  • 資源処理・環境修復工学特論実験第二

    2019.4 - 2020.3   Full year

  • 地球環境工学入門1

    2019.4 - 2019.9   First semester

  • 基礎生物学概要

    2019.4 - 2019.9   First semester

  • 基礎生物学概要

    2019.4 - 2019.9   First semester

  • 地球システム工学インターンシップ

    2019.4 - 2019.9   First semester

  • 資源処理・環境修復工学特論 実験第二

    2019.4 - 2019.9   First semester

  • 資源処理・環境修復工学特論 実験第一

    2019.4 - 2019.9   First semester

  • 資源処理・環境修復工学特論 第三

    2019.4 - 2019.9   First semester

  • 資源処理・環境修復工学特論第二

    2018.12 - 2019.2   Winter quarter

  • 資源システム工学実験第二

    2018.10 - 2019.3   Second semester

  • 環境微生物学

    2018.10 - 2019.3   Second semester

  • 資源処理工学

    2018.10 - 2019.3   Second semester

  • 資源処理・環境修復工学特論 第二

    2018.10 - 2019.3   Second semester

  • 資源システム工学実験第二

    2018.10 - 2019.3   Second semester

  • 地球環境工学入門2

    2018.10 - 2019.3   Second semester

  • 国際環境システム工学特別コースCL2

    2018.10 - 2019.3   Second semester

  • 資源微生物工学

    2018.10 - 2019.3   Second semester

  • 資源処理工学

    2018.10 - 2018.12   Fall quarter

  • 粉体工学

    2018.10 - 2018.12   Fall quarter

  • 資源処理工学特論実験第一

    2018.4 - 2019.3   Full year

  • 資源処理・環境修復工学特論実験第二

    2018.4 - 2019.3   Full year

  • 資源処理・環境修復工学特論実験第一

    2018.4 - 2019.3   Full year

  • 資源処理工学特論実験第二

    2018.4 - 2019.3   Full year

  • 基礎生物学概要

    2018.4 - 2018.9   First semester

  • 地球システム工学インターンシップ

    2018.4 - 2018.9   First semester

  • 資源処理・環境修復工学特論 第三

    2018.4 - 2018.9   First semester

  • 資源処理・環境修復工学特論 実験第二

    2018.4 - 2018.9   First semester

  • 資源処理・環境修復工学特論 実験第一

    2018.4 - 2018.9   First semester

  • 基礎生物学概要

    2018.4 - 2018.9   First semester

  • 地球環境工学入門1

    2018.4 - 2018.9   First semester

  • 資源処理工学特論第二

    2017.12 - 2018.2   Winter quarter

  • 資源処理・環境修復工学特論第二

    2017.12 - 2018.2   Winter quarter

  • 資源システム工学実験第二

    2017.10 - 2018.3   Second semester

  • 環境微生物学

    2017.10 - 2018.3   Second semester

  • 粉体工学

    2017.10 - 2018.3   Second semester

  • 資源処理・環境修復工学特論 第二

    2017.10 - 2018.3   Second semester

  • 資源処理工学 （旧：粉体工学）

    2017.10 - 2018.3   Second semester

  • 資源微生物工学 （旧：環境微生物学）

    2017.10 - 2018.3   Second semester

  • 国際環境システム工学特別コースCL2

    2017.10 - 2018.3   Second semester

  • 地球環境工学入門2

    2017.10 - 2018.3   Second semester

  • 資源システム工学実験第二

    2017.10 - 2018.3   Second semester

  • 資源処理工学特論実験第一

    2017.4 - 2018.3   Full year

  • 資源処理工学特論実験第二

    2017.4 - 2018.3   Full year

  • 資源システム工学実験第一

    2017.4 - 2017.9   First semester

  • 基礎生物学概要

    2017.4 - 2017.9   First semester

  • 資源処理・環境修復工学特論 第三

    2017.4 - 2017.9   First semester

  • 地球システム工学インターンシップ

    2017.4 - 2017.9   First semester

  • 地球環境工学入門1

    2017.4 - 2017.9   First semester

  • 基礎生物学概要

    2017.4 - 2017.9   First semester

  • 資源処理・環境修復工学特論 実験第一

    2017.4 - 2017.9   First semester

  • 資源処理・環境修復工学特論 実験第二

    2017.4 - 2017.9   First semester

  • 資源処理・環境修復工学特論 第一

    2017.4 - 2017.9   First semester

  • 国際環境システム工学特別コースCL2

    2016.10 - 2017.3   Second semester

  • 資源処理工学特論第二

    2016.10 - 2017.3   Second semester

  • 資源システム工学実験第二

    2016.10 - 2017.3   Second semester

  • 環境微生物学

    2016.10 - 2017.3   Second semester

  • 地球環境工学入門2

    2016.10 - 2017.3   Second semester

  • 地球システム工学インターンシップ

    2016.4 - 2016.9   First semester

  • 資源処理工学特論第三

    2016.4 - 2016.9   First semester

  • 資源処理工学特論第一

    2016.4 - 2016.9   First semester

  • 資源処理工学特論実験第二

    2016.4 - 2016.9   First semester

  • 資源処理工学特論実験第一

    2016.4 - 2016.9   First semester

  • 基礎生物学概要

    2016.4 - 2016.9   First semester

  • 地球環境工学入門1

    2016.4 - 2016.9   First semester

  • 国際環境システム工学特別コースCL2

    2015.10 - 2016.3   Second semester

  • 資源処理工学特論第二

    2015.10 - 2016.3   Second semester

  • 環境微生物学

    2015.10 - 2016.3   Second semester

  • 地球環境工学入門2

    2015.10 - 2016.3   Second semester

  • 資源システム工学実験第二

    2015.4 - 2016.3   Full year

  • 地球システム工学インターンシップ

    2015.4 - 2015.9   First semester

  • 資源処理工学特論第一

    2015.4 - 2015.9   First semester

  • 資源処理工学特論実験第二

    2015.4 - 2015.9   First semester

  • 資源処理工学特論実験第一

    2015.4 - 2015.9   First semester

  • 基礎生物学概要

    2015.4 - 2015.9   First semester

  • 地球環境工学入門1

    2015.4 - 2015.9   First semester

  • 先端工学A

    2014.10 - 2015.3   Second semester

  • 資源処理工学特論第二

    2014.10 - 2015.3   Second semester

  • 環境微生物学

    2014.10 - 2015.3   Second semester

  • 地球システム工学インターンシップ

    2014.10 - 2015.3   Second semester

  • 国際環境システム工学特別コースCL2

    2014.10 - 2015.3   Second semester

  • 資源システム工学実験第二

    2014.4 - 2015.3   Full year

  • 地球環境工学入門1

    2014.4 - 2014.9   First semester

  • 資源処理工学特論第一

    2014.4 - 2014.9   First semester

  • 資源処理工学特論実験第二

    2014.4 - 2014.9   First semester

  • 資源処理工学特論実験第一

    2014.4 - 2014.9   First semester

  • 基礎生物学概要

    2014.4 - 2014.9   First semester

  • 先端工学A

    2013.10 - 2014.3   Second semester

  • 資源処理工学特論第二

    2013.10 - 2014.3   Second semester

  • 環境微生物学

    2013.10 - 2014.3   Second semester

  • 地球システム工学インターンシップ

    2013.10 - 2014.3   Second semester

  • 国際環境システム工学特別コースCL2

    2013.10 - 2014.3   Second semester

  • 資源システム工学実験第二

    2013.4 - 2014.3   Full year

  • 地球環境工学入門1

    2013.4 - 2013.9   First semester

  • 資源処理工学特論第一

    2013.4 - 2013.9   First semester

  • 資源処理工学特論実験第二

    2013.4 - 2013.9   First semester

  • 資源処理工学特論実験第一

    2013.4 - 2013.9   First semester

  • 地球環境工学演習（コアセミナー）

    2013.4 - 2013.9   First semester

  • 先端工学A

    2012.10 - 2013.3   Second semester

  • 資源処理工学特論第二

    2012.10 - 2013.3   Second semester

  • 地球環境修復工学（環境微生物学）

    2012.10 - 2013.3   Second semester

  • 地球システム工学インターンシップ

    2012.10 - 2013.3   Second semester

  • 国際環境システム工学特別コースCL2

    2012.10 - 2013.3   Second semester

  • 資源システム工学実験第二

    2012.4 - 2013.3   Full year

  • 地球環境工学入門1

    2012.4 - 2012.9   First semester

  • 資源処理工学特論第一

    2012.4 - 2012.9   First semester

  • 資源処理工学特論実験第二

    2012.4 - 2012.9   First semester

  • 資源処理工学特論実験第一

    2012.4 - 2012.9   First semester

  • 地球環境工学演習（コアセミナー）

    2012.4 - 2012.9   First semester

  • 国際環境システム工学特別コースCL2

    2011.10 - 2012.3   Second semester

  • 資源処理工学特論第二

    2011.10 - 2012.3   Second semester

  • 地球環境修復工学（環境微生物学）

    2011.10 - 2012.3   Second semester

  • 地球システム工学インターンシップ

    2011.10 - 2012.3   Second semester

  • 資源システム工学実験第二

    2011.4 - 2012.3   Full year

  • 地球環境工学入門1

    2011.4 - 2011.9   First semester

  • 資源処理工学特論第一

    2011.4 - 2011.9   First semester

  • 資源処理工学特論実験第二

    2011.4 - 2011.9   First semester

  • 資源処理工学特論実験第一

    2011.4 - 2011.9   First semester

  • 地球環境工学演習（コアセミナー）

    2011.4 - 2011.9   First semester

  • 資源微生物工学

    2024.10 - 2024.12   Fall quarter

  • 地球環境化学

    2024.10 - 2024.12   Fall quarter

  • 資源処理工学

    2024.10 - 2024.12   Fall quarter

  • 資源処理・環境修復工学特論第三

    2024.4 - 2025.3   Full year

  • 生物学概論

    2024.4 - 2024.9   First semester

  • 地球微生物工学

    2024.4 - 2024.6   Spring quarter

  • 資源処理・環境修復工学特論第一

    2024.4 - 2024.6   Spring quarter

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FD Participation

  • 2021.9   Role：Participation   Title：JST 次世代研究者挑戦的研究プログラム 説明会

    Organizer：University-wide

  • 2020.7   Role：Participation   Title：アフターコロナの大学はどうあるべきか

    Organizer：[Undergraduate school/graduate school/graduate faculty]

  • 2020.5   Role：Participation   Title：オンサイト授業 vs. オンライン授業：分かったこと，変わったこと

    Organizer：[Undergraduate school/graduate school/graduate faculty]

  • 2020.4   Role：Participation   Title：Moodleを利用したe-Learning実例報告（九州大学電気情報において）

    Organizer：[Undergraduate school/graduate school/graduate faculty]

  • 2019.11   Role：Participation   Title：メンタルヘルス講演会

    Organizer：University-wide

  • 2016.6   Role：Participation   Title：ハラスメント出前ミニ講座

    Organizer：[Undergraduate school/graduate school/graduate faculty]

  • 2014.11   Role：Participation   Title：学生の自殺予防 「自殺予防の基礎と実際〜危機にある学生にどのように対応するか〜」

    Organizer：University-wide

  • 2014.7   Role：Participation   Title：新GPA制度

    Organizer：[Undergraduate school/graduate school/graduate faculty]

  • 2013.6   Role：Participation   Title：基幹教育と基幹教育カリキュラム

    Organizer：University-wide

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Visiting, concurrent, or part-time lecturers at other universities, institutions, etc.

  • 2020  Gadjah Mada University  Classification:Intensive course  Domestic/International Classification:Overseas 

  • 2018  Gadjah Mada University, Summer School  Classification:Intensive course  Domestic/International Classification:Overseas 

  • 2018  Lampung University  Classification:Intensive course  Domestic/International Classification:Overseas 

  • 2018  LIPI (Indonesian Institute of Sciences), Lampung  Classification:Intensive course  Domestic/International Classification:Overseas 

  • 2017  Gadjah Mada University  Classification:Intensive course  Domestic/International Classification:Overseas 

  • 2012  広島大学、大学院講義  Domestic/International Classification:Japan 

  • 2012  Curtin University, Biomedical Sciences, 博士論文　外部審査員  Domestic/International Classification:Overseas 

▼display all

Participation in international educational events, etc.

  • 2020.10

    Gadjah Mada University

    ガジャマダ大学 Special Lecture on Scientific Writing

    　 More details

    Venue：Indonesia

  • 2018.8

    Universitas Gadjah Mada

    WAFERS Summer Course 講師

    　 More details

    Venue：Indonesia

  • 2018.8

    Universitas Gadjah Mada

    Stadium Generale 講師

    　 More details

    Venue：Indonesia

  • 2018.8

    LIPI Lampung

    Special Lectures - LIPI 講師

    　 More details

    Venue：Indonesia

  • 2017.10

    Gadjah Mada University

    ガジャマダ大学 研究指導および特別講義

    　 More details

    Venue：Indonesia

  • 2017.10

    University of Lampung

    ランプン大学 研究指導および特別講義

    　 More details

    Venue：Indonesia

  • 2017.10

    LIPI Lampung

    BALAI PENELITIAN TEKNOLOGI MINERAL - LIPI 研究指導

    　 More details

    Venue：Indonesia

  • 2014.3

    日本学術振興会

    大阪大学・アーヘン工科大学　日独共同大学院プログラム Biotechnology and Chemistry for Green Growth

    　 More details

    Venue：Osaka

  • 2013.8

    九州大学

    ASEAN-Japan BUILD-UP Cooperative Education Program (AJ-BCEP) Summer School Lecture

    　 More details

    Venue：Fukuoka

  • 2013.1

    九州大学

    ASEAN-Japan BUILD-UP Cooperative Education Program (AJ-BCEP) Kick-Off Seminar

    　 More details

    Venue：Bangkok

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Teaching Student Awards

  • Presentation Award, International Symposium on Earth Science and Technology 2024

    Year and month of award：2024.11

    Classification of award-winning students：Postgraduate student   Name of award-winning student：木村 一真

    　 More details

Other educational activity and Special note

  • 2019  Class Teacher  学部

  • 2018  Class Teacher  学部

  • 2017  Special Affairs  九州大学 工学講義賞受賞

    　詳細を見る

    九州大学 工学講義賞受賞

  • 2015  Class Teacher  学部

  • 2014  Class Teacher  学部

  • 2013  Class Teacher  学部

  • 2012  Class Teacher  学部

  • 2011  Class Teacher  学部

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Social Activities

  • 生命科学と鉱業 ～微生物と金属の親密な関係 !?～

    広島市立舟入高等学校  2022.10

    　More details

    Audience：Infants,　Schoolchildren,　Junior students,　High school students

    Type：Seminar, workshop

  • 生命科学と鉱業 ～微生物と金属の親密な関係 !?～

    福岡工業大学附属 城東高等学校  2020.10

    　More details

    Audience：Infants,　Schoolchildren,　Junior students,　High school students

    Type：Seminar, workshop

  • ６年生　総合学習　「職業について考える」　ゲストティーチャー

    糸島市立南風小学校  2019.6

    　More details

    Audience：Infants,　Schoolchildren,　Junior students,　High school students

    Type：Seminar, workshop

  • 環境バイオテクノロジー　～微生物を利用した資源開発と環境浄化～

    宮崎県立延岡星雲高等学校  2016.10

    　More details

    Audience：Infants,　Schoolchildren,　Junior students,　High school students

    Type：Seminar, workshop

  • 連続講演会　「黒いダイヤの魅力」　酸性鉱山廃水処理

    大牟田石炭産業科学館  2015.11

    　More details

    Audience：General,　Scientific,　Company,　Civic organization,　Governmental agency

    Type：Lecture

  • ６年生　総合学習　「職業について考える」　ゲストティーチャー

    糸島市立南風小学校  2014.6

    　More details

    Audience：Infants,　Schoolchildren,　Junior students,　High school students

    Type：Seminar, workshop

  • Open Campus コース担当

    2013.8

    　More details

    Audience：Infants,　Schoolchildren,　Junior students,　High school students

    Type：Seminar, workshop

  • 銅資源の回収～微生物による金属資源開発～

    熊本県立第二高等学校（SSH)  2011.10

    　More details

    Audience：Infants,　Schoolchildren,　Junior students,　High school students

    Type：Seminar, workshop

  • 環境バイオテクノロジー　～微生物を利用した資源開発と環境浄化～

    宮崎県立延岡高等学校  2011.9

    　More details

    Audience：Infants,　Schoolchildren,　Junior students,　High school students

    Type：Seminar, workshop

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Media Coverage

  • 【九州大学工学部Ⅳ群】研究・学びの魅力・特徴に迫る‼｜地球の未来を実現する総合工学とは!?

    YouTubeチャンネル: 東進TV チャンネル【公式】  2022.2

    　More details

    【九州大学工学部Ⅳ群】研究・学びの魅力・特徴に迫る‼｜地球の未来を実現する総合工学とは!?

  • 【講演会】Biomining ~生命科学で鉱業する~（沖部奈緒子氏）ナイスステップな研究者2020講演会【第3回①】

    YouTubeチャンネル: 文部科学省 科学技術・学術政策研究所【公式】  2020.7

    　More details

    【講演会】Biomining ~生命科学で鉱業する~（沖部奈緒子氏）ナイスステップな研究者2020講演会【第3回①】

Activities contributing to policy formation, academic promotion, etc.

  • 2022.8 - 2023.3   経済産業省

    中央鉱山保安協議会専門委員

Educational Activities for Highly-Specialized Professionals in Other Countries

  • 2018.8   LIPI Special Lectures - Biohydrometallurgy -Basics and Application-

    Main countries of student/trainee affiliation：Indonesia

  • 2018.8   「Wafers Summer Course」 -Global perspective in bioresource technology for water-food-energy sustainability-

    Main countries of student/trainee affiliation：Indonesia

Acceptance of Foreign Researchers, etc.

  • 九州大学

    Acceptance period： 2024.6 - 2024.3  

    Nationality：Sri Lanka

  • 九州大学

    Acceptance period： 2023.11 - 2025.11  

    Nationality：India

  • 九州大学

    Acceptance period： 2023.9 - 2024.2  

    Nationality：Sri Lanka

  • 九州大学

    Acceptance period： 2022.4 - 2024.2  

    Nationality：Sri Lanka

  • Universitas Jember

    Acceptance period： 2019.2 - 2019.4  

    Nationality：Indonesia

  • Acceptance period： 2018.7 - 2020.6  

    Nationality：India

▼display all

Travel Abroad

  • 2023.9

    Staying countory name 1：Cambodia   Staying institution name 1：2nd International Conference on Earth Resources and Geo-Environment Technology 2023 (EraGET 2023).

  • 2022.11

    Staying countory name 1：Australia   Staying institution name 1：24th International Biohydrometallurgy Symposium (IBS) 2022

  • 2018.9

    Staying countory name 1：Italy   Staying institution name 1：12th International Congress of Extremophiles

  • 2018.8

    Staying countory name 1：Indonesia   Staying institution name 1：LIPI (Indonesian Institute of Sciences)

  • 2018.8

    Staying countory name 1：Indonesia   Staying institution name 1：Gadjah Mada University

    Staying institution name 2：LIPI (Indonesian Institute of Sciences)

  • 2017.10

    Staying countory name 1：Indonesia   Staying institution name 1：Gadjah Mada University

  • 2017.10

    Staying countory name 1：Indonesia   Staying institution name 1：University of Lampung

  • 2017.10

    Staying countory name 1：Indonesia   Staying institution name 1：LIPI (Indonesian Institute of Sciences)

  • 2017.10

    Staying countory name 1：Indonesia   Staying institution name 1：Mineral Processing & Technology International Conference 2017

  • 2017.9

    Staying countory name 1：Germany   Staying institution name 1：22nd International Biohydrometallurgy Symposium (IBS) 2017

  • 2015.10

    Staying countory name 1：Indonesia   Staying institution name 1：21st International Biohydrometallurgy Symposium (IBS) 2015

  • 2015.10

    Staying countory name 1：Indonesia   Staying institution name 1：Sntki 2015 Conference

  • 2014.6

    Staying countory name 1：United Kingdom   Staying institution name 1：Biohydrometallurgy 2014 Conference

  • 2013.1

    Staying countory name 1：Thailand   Staying institution name 1：Pathumwan Princess Hotel, Bangkok

    Staying countory name 2：Thailand   Staying institution name 2：Chulalongkorn University

  • 2012.6

    Staying countory name 1：United Kingdom   Staying institution name 1：Biohydrometallurgy 2012 Conference

  • 2005.11

    Staying countory name 1：Netherlands   Staying institution name 1：BioMinE Work Package Progress Conference at Noordwijkerhout

  • 2005.7 - 2005.8

    Staying countory name 1：United Kingdom   Staying institution name 1：University of Wales, Bangor

  • 2005.3 - 2005.6

    Staying countory name 1：Australia   Staying institution name 1：CSIRO, Minerals

  • 2004.1 - 2005.1

    Staying countory name 1：Germany   Staying institution name 1：Otsuka Frankfurt Research Institute

  • 2001.3

    Staying countory name 1：United Kingdom   Staying institution name 1：SGM meeting at Heriot-Watt University, Edinburgh

  • 1999.9 - 2003.7

    Staying countory name 1：United Kingdom   Staying institution name 1：University of Wales, Bangor

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