| 1. |
Khalil Ahmed M. E., Eljamal Osama, Matsunaga Nobuhiro, DIFFERENT NANOSCALE ZERO VALENT IRONS FOR NITRATE-POLLUTED WATER REMEDIATION, 2015.10. |
| 2. |
Khalil Ahmed M. E., Eljamal Osama, Amen Tareq W.M., Sugihara Yuji, Matsunaga Nobuhiro, Investigation of Contaminants Interference on Water Treatment by Supported Nanoscale Zero Valent Iron, 2016.10. |
| 3. |
Amen Tareq W.M., Eljamal Osama, Khalil Ahmed M.E., Matsunaga Nobuhiro, Potential catalytic effect of ion copper bimetallic nanoparticles on digestion of anaerobic activated sludge at high iron concentrations, 2017.10. |
| 4. |
Shubair Tamer, Eljamal Osama, Khalil Ahmed, Matsunaga Nobuhiro, Nitrate Removal in Porous Media Using Nanoscale Zero Valent Iron: Column Experiment, 2017.10. |
| 5. |
Mokete Relebohile, Yifan Hu, Eljamal Osama, Matsunaga Nobuhiro, Investigation on Nanoscale Zero Valent Iron interactions in aqueous solution, 2017.10. |
| 6. |
Maamoun Ibrahim, Eljamal Osama, Shubair Tamer, Noutsuka Hiroki, Saha Bidyut Baran, Matsunaga Nobuhiro, Integrating nano-scale zero valent iron (nZVI) in phosphorus removal from aqueous solution through porous media: packed-column experiment, 2017.10. |
| 7. |
Aljamal Ramadan, Eljamal Osama, Khalil Ahmed, Saha B. B, Matsunaga Nobuhiro, Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron, 2017.10. |
| 8. |
Takami Seiya, Eljamal Osama, Eljamal Ramadan, Matsunaga Nobuhiro, Continuous-flow of Nanoscale Zero Valent Iron based system for phosphorus removal, 2017.10. |
| 9. |
Okasha Sameh, Eljamal Osama, Eljamal Ramadan, nZVI@TiO_2 Hetero-interface Activity for NO_3- Removal as Water Remediation Application, 2018.10. |
| 10. |
Alkhudhayri Sami, Eljamal Osama, Eljamal Ramadan, Removal of boron from aqueous solutions using MgAl composition, 2018.10. |
| 11. |
TAKAMI Seiya, Eljamal Osama, Matsunaga Nobuhiro, Phosphorus Removal by using Nano-scale Iron Materials, 2018.10. |
| 12. |
Eljamal Osama, Nanoscale Zero Valent Iron (NZVI)-Based Bimetallic for Water Treatment, 2018.10. |
| 13. |
Shubair Tamer, Eljamal Osama, Matsunaga Nobuhiro, Nano-Fe/Cu particles for the remediation of cesium contaminated solutions, 2018.10. |
| 14. |
Mokete Relebohile, Chen Kai, Eljamal Osama, Matsunaga Nobuhiro, Inspection of Iron-Copper Bimetal Performance in Chemically Altered Atmosphere, 2018.10. |
| 15. |
Eljamal Ramadan, Eljamal Osama, Matsunaga Nobuhiro, Enhancement of the Reduction and Adsorption Mechanism of nZVI using an effective polyacrylamide as a nonionic polymer, 2018.10. |
| 16. |
Maamoun Ibrahim, Eljamal Osama, Matsunaga Nobuhiro, Enhancement of Nanoscale Zero-Valent Iron Stability in Aqueous Solution Via Metal Hydroxide Coating, 2018.10. |
| 17. |
Eljamal Ramadan, Eljamal Osama, Thompson P. Ian, Maamoun Ibrahim, Sugihara Yuji, Yilmaz Gulsum, Upgrading of Aerobic Sequencing Batch Reactor System with Adding Nanoscale Zero Valent Iron for Wastewater Treatment, 2019.10. |
| 18. |
Alkhudhayri Sami, Eljamal Osama, Maamoun Ibrahim, Eljamal Ramadan, Thermodynamic Effect on Boron Removal from Aqueous Solutions by MgAl Layered Double Hydrotalcite, 2019.10. |
| 19. |
Rahman Md. Matiar, Karmaker C. Shamal, Pal Animesh, Eljamal Osama, Saha Baran Bidyut, Factorial Experimental Design for Optimization of Cesium Removal from Aqueous Solutions, 2019.10. |
| 20. |
Islam M. Radwan, Eljamal Osama, A mini-Review on Transportation and Fate of Silver Nanoparticles Released from Consumer Products: Ecological Risk Assessments, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2022.10. |
| 21. |
Mohd Faizul Idham, Falyouna Omar, Eljamal Ramadan, Maamoun Ibrahim, Eljamal Osama, Antibiotics Removal from Aqueous Environments: A Mini Review on Graphene Oxide-based Nanomaterials Application, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2022.10. |
| 22. |
Khalil Ahmed, Eljamal Osama, Application of Magnetotelluric Geophysical Technique to Study the Subsurface Structural Setting in Marsa Alam, Eastern Desert, Egypt, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2022.10. |
| 23. |
Falyouna Omar, Maamoun Ibrahim, Mohd Faizul Idham, Eljamal Osama, Effect of water matrix on ligand-assisted adsorption of ciprofloxacin from aqueous solutions by zerovalent iron nanoparticles, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2022.10. |
| 24. |
Singha Bipasha, Eljamal Osama, Evaluating the Social and Psychological Factors about the Public Acceptance of Treated Wastewater Reuse: A Review, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2022.10. |
| 25. |
Eljamal Osama, Opportunities to exploit stored energy in wastewater, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2022.10. |
| 26. |
ELjamal Ramadan, Maamoun Ibrahim, Mohd Faizul Idham, Eljamal Osama, The role of coated nanoscale zero-valent iron with magnesium hydroxide in improving methane production during the anaerobic digestion of waste sludge, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2022.10. |
| 27. |
Islam Mir Shariful, Maamoun Ibrahim, Falyouna Omar, Elsayed B. Belal, Eljamal Osama, Bidyut Baran Saha, Biosorption of Arsenic from Contaminated Water: Composite of Algae and Fe-Nano Particles, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10, Arsenic poisoning has been a great concern for the last two decades because of its extensive problems. Coagulation, ion exchange, ultrafiltration, and adsorption systems have been used for the removal of arsenic from polluted water. In this study, the biosorption process was used owing to eco-friendly, simplicity, biodegradable, and cost effectiveness. The uptake of arsenic from contaminated water by Ulva lactuca, Spirulina platensis, Chlorella vulgaris, orange peel, NZVI, zeolite, and composite of NZVI and algae was studied. This study observed that Chlorella vulgaris and iron coated Chlorella vulgaris absorb arsenic more effectively than other algae and iron coated algae. After 24 hours, Chlorella vulgaris and Fe-coated Chlorella vulgaris absorbs 23% and 67% arsenic from contaminated water, respectively. The presented findings depicted the great potential of using bio-sorbents and the Fe-algae bio-composite for the removal of arsenic from contaminated aqueous solutions.. |
| 28. |
Eljamal Ramadan, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama, Investigating the Effect of Commercial and Synthesized Fe^0 particles on Methane Production Through the Anaerobic Digestion of Waste Sludge, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10, Anaerobic digestion (AD) is a well-established technology that converts organic wastes to produce renewable energy as methane gas. However, the low conversion efficiency of organic matter to methane gas is the main challenge for the practical application of this technology. Therefore, this article aims to demonstrate the effect of the addition of commercial and synthesized Fe0 particles on methane gas production during the AD of waste sludge. Two set of experiments were conducted using two different waste sludges collected at different times from Fukuoka wastewater treatment plant in Japan. Different concentrations of commercial and synthesized iron particles were used in the anaerobic digesters ranged from 1 to 500 mg/L. The results should that the addition of the synthesized/Fe^0 particles to the anaerobic digesters improved methane production by 16% and 5% at using the first and second waste sludge, respectively. On the other hand, the addition of the commercial iron particles did not improve the production of methane gas.. |
| 29. |
Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama, Mini Review on Recent Applications of Nanotechnology in Nutrient and Heavy Metals Removal from Contaminated Water, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10, Several toxic substances, such as nutrients, heavy metals, radionuclides, and pharmaceuticals, are continuously discharging to the environment, as a result of unaccountable industrial and agricultural activities, and contaminating huge quantities of soil and water. Nanotechnology was employed over the past years to remediate the contaminated waters and clean the environment from these pollutants to protect the life on the planet. Nanoscale zerovalent iron (nZVI) is one of the most applied nanomaterials in the field of water and wastewater treatment and it is extensively utilized to remove a wide range of contaminants from water. Thus, this mini review intends to summarize the latest applications of nZVI and its composites in eliminating several nutrients and heavy metals, namely nitrate (NO3-), phosphorous (P), chromium (Cr) and arsenic (As).. |
| 30. |
Maamoun Ibrahim, Eljamal Ramadan, Falyouna Omar, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama, Radionuclides Removal from Aqueous Solutions: A Mini Review on Using Different Sorbents, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10, In this study, mini review is presented on the use of different sorbents for radionuclides removal of from water. Four sorbents categories were considered: carbon-based, nanomaterials, bio-sorbents, and miscellaneous sorbents. Carbon-based sorbents showed excellent removal performance towards radionuclides, owing to the high specific surface area and abundant oxygen-containing functional groups. While Fe0 and Fe0-based composites was found to exhibit rapid sorption rate, high removal capacity, and strong redox performance for radionuclides, indicating that such nanomaterials can be very promising for in-situ removal of radionuclides, once their drawbacks (aggregation and poor mobility) are overcome. The use of bio-sorbents showed high potential of such materials to remediate radioactive contaminated water under specific environmental conditions. The critical review in this study shall represent a great contribution to the potential researchers and decision makers choosing the highly efficient, feasible, and environmentally friendly sorbents for the removal of radionuclides from aqueous solutions.. |
| 31. |
Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Osama, Understanding the Effect of Fe(II) and Fe(III) in Generating Electricity from Real Waste Sludge in Microbial Fuel Cells, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10, Microbial fuel cells (MFCs) are a versatile technology for power generation from biodegradable solid wastes. This study aimed to investigate Fe(II) and Fe(III) effects on MFC's power generation and wastewater treatment performance. All MFCs were operated in a batch mode and incubated at a constant temperature (40 ℃) for 45 days of operation. The experimental procedure went through MFCs construction, collection and characterization of waste sludge samples, and bacterial growth counting. Results showed that the Fe(III) addition exhibited a higher power output by 295 % and a shorter start-up time. The microbial growth increased by 92.18 %, and the anolyte's resistivity decreased with an increase in the organic matter digestion by 52.78 %. However, the amount of power generated in these MFCs was limited by the biological Fe(III) reduction rate high enough to restrict the produced current.. |
| 32. |
Islam Mir Shariful, Maamoun Ibrahim, Falyouna Omar, Elsayed B. Belal, Eljamal Osama, Bidyut Baran Saha, Biosorption of Arsenic from Contaminated Water: Composite of Algae and Fe-Nano Particles, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10. |
| 33. |
Mohd Faizul Idham, Falyouna Omar, Eljamal Osama, Effect of Graphene Oxide Synthesis Method on The Adsorption Performance of Pharmaceutical Contaminants, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10. |
| 34. |
Singha Bipasha, Eljamal Osama, Exploring Attitudes and Household Culture to Encourage Water Conservation Behavior, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10. |
| 35. |
Eljamal Ramadan, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama, Investigating the Effect of Commercial and Synthesized Fe^0 particles on Methane Production Through the Anaerobic Digestion of Waste Sludge, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10. |
| 36. |
Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama, Mini Review on Recent Applications of Nanotechnology in Nutrient and Heavy Metals Removal from Contaminated Water, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10. |
| 37. |
Maamoun Ibrahim, Eljamal Ramadan, Falyouna Omar, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama, Radionuclides Removal from Aqueous Solutions: A Mini Review on Using Different Sorbents, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10. |
| 38. |
Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Osama, Understanding the Effect of Fe(II) and Fe(III) in Generating Electricity from Real Waste Sludge in Microbial Fuel Cells, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2021.10. |
| 39. |
Singha Bipasha, Eljamal Osama, A Review on Water Conservation and Consumption Behavior: Leading Issues, Promoting Actions, and Managing the Policies., Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 40. |
Singha Bipasha, Eljamal Osama, A Review on Water Conservation and Consumption Behavior: Leading Issues, Promoting Actions, and Managing the Policies., Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 41. |
Eljamal Ramadan, Maamoun Ibrahim, Sugihara Yuji, Eljamal Osama, Comparative Study of Bare and Emulsified Nanoscale Zero-valent Iron for Nitrate and Phosphorus Removal, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 42. |
Eljamal Ramadan, Maamoun Ibrahim, Sugihara Yuji, Eljamal Osama, Comparative Study of Bare and Emulsified Nanoscale Zero-valent Iron for Nitrate and Phosphorus Removal, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 43. |
Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Ramadhan, Eljamal Osama, Enhancement of Power Generation in Microbial Fuel Cells (Mfcs) Using Iron/Copper Nanoparticles, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 44. |
Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Ramadhan, Eljamal Osama, Enhancement of Power Generation in Microbial Fuel Cells (Mfcs) Using Iron/Copper Nanoparticles, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 45. |
Maamoun Ibrahim, Bensaida Khaoula, Eljamal Ramadhan, Falyouna Omar, Sugihara Yuji, Eljamal Osama, Innovative Biotechnological Applications of Galdieria Sulphuraria-Red Microalgae (GS-RMA) in Water Treatment Systems, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 46. |
Maamoun Ibrahim, Bensaida Khaoula, Eljamal Ramadhan, Falyouna Omar, Sugihara Yuji, Eljamal Osama, Innovative Biotechnological Applications of Galdieria Sulphuraria-Red Microalgae (GS-RMA) in Water Treatment Systems, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 47. |
Kim SungJin, Sugihara Yuji, Eljamal Osama, Numerical Analysis on Turbulence and Air-Water Scalar Transport in Open-Channel Flow Influenced by Thermal Stratification and Surface Shear Stress, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 48. |
Kim SungJin, Sugihara Yuji, Eljamal Osama, Numerical Analysis on Turbulence and Air-Water Scalar Transport in Open-Channel Flow Influenced by Thermal Stratification and Surface Shear Stress, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 49. |
Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama, Removal of Ciprofloxacin from Aqueous Solutions by Nanoscale Zerovalent Iron-Based Materials: A Mini Review, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10, Ciprofloxacin is a fluoroquinolone antibiotic developed to fightback several bacterial diseases. The widespread application in human and animal medicine and the low biodegradation resulted in the persistent detection of ciprofloxacin in many water systems. The occurrence of ciprofloxacin threats human and aquatic life by motivating the development of antimicrobial resistant geneses in water. Microscale (ZVI) and nanoscale zerovalent iron (nZVI) were used to efficiently remove ciprofloxacin from aqueous solutions. The aim of this mini review to summarize: (1) the possible routes for ciprofloxacin to enter the environment, (2) the mechanism of oxidizing organic pollutants by nanoscale zerovalent iron (nZVI), (3) the ways to improve the performance of nZVI and overcome its limitations and finally (4) the available treatment systems in the literature which is developed based on NZVI to remove ciprofloxacin from aqueous environments.. |
| 50. |
Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama, Removal of Ciprofloxacin from Aqueous Solutions by Nanoscale Zerovalent Iron-Based Materials: A Mini Review, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10, Ciprofloxacin is a fluoroquinolone antibiotic developed to fightback several bacterial diseases. The widespread application in human and animal medicine and the low biodegradation resulted in the persistent detection of ciprofloxacin in many water systems. The occurrence of ciprofloxacin threats human and aquatic life by motivating the development of antimicrobial resistant geneses in water. Microscale (ZVI) and nanoscale zerovalent iron (nZVI) were used to efficiently remove ciprofloxacin from aqueous solutions. The aim of this mini review to summarize: (1) the possible routes for ciprofloxacin to enter the environment, (2) the mechanism of oxidizing organic pollutants by nanoscale zerovalent iron (nZVI), (3) the ways to improve the performance of nZVI and overcome its limitations and finally (4) the available treatment systems in the literature which is developed based on NZVI to remove ciprofloxacin from aqueous environments.. |
| 51. |
Mokete Relebohile, Eljamal Osama, The Involvement of Nanoscale Zero Valent Iron during the Anaerobic Digestion of Sludge, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10, Increased production of Waste Activated Sludge (WAS) calls for its proper treatment and this can be achieved by biogas production. The aim of this research was to investigate the impact of 1.5g/L NZVI on the generation of bio-methane through the Anaerobic Digestion (AD) process. The results showed that sludge with NZVI (Sg/NZVI) improved the biogas production due to its electron transfer capability. The pH decreased overtime due to the production of Volatile Fatty Acids (VFA) during the AD process, however, the pH of the control decreased more than that of Sg/NVZI because the H+ was consumed during iron corrosion thus resulting in a favorable pH for the methanogens. But with time, the accumulation of VFA and ammonia resulted in the decreased production of biogas.. |
| 52. |
Mokete Relebohile, Eljamal Osama, The Involvement of Nanoscale Zero Valent Iron during the Anaerobic Digestion of Sludge, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10, Increased production of Waste Activated Sludge (WAS) calls for its proper treatment and this can be achieved by biogas production. The aim of this research was to investigate the impact of 1.5g/L NZVI on the generation of bio-methane through the Anaerobic Digestion (AD) process. The results showed that sludge with NZVI (Sg/NZVI) improved the biogas production due to its electron transfer capability. The pH decreased overtime due to the production of Volatile Fatty Acids (VFA) during the AD process, however, the pH of the control decreased more than that of Sg/NVZI because the H+ was consumed during iron corrosion thus resulting in a favorable pH for the methanogens. But with time, the accumulation of VFA and ammonia resulted in the decreased production of biogas.. |
| 53. |
Singha Bipasha, Eljamal Osama, A Review on Water Conservation and Consumption Behavior: Leading Issues, Promoting Actions, and Managing the Policies., Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 54. |
Eljamal Ramadan, Maamoun Ibrahim, Sugihara Yuji, Eljamal Osama, Comparative Study of Bare and Emulsified Nanoscale Zero-valent Iron for Nitrate and Phosphorus Removal, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 55. |
Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Ramadhan, Eljamal Osama, Enhancement of Power Generation in Microbial Fuel Cells (Mfcs) Using Iron/Copper Nanoparticles, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 56. |
Maamoun Ibrahim, Bensaida Khaoula, Eljamal Ramadhan, Falyouna Omar, Sugihara Yuji, Eljamal Osama, Innovative Biotechnological Applications of Galdieria Sulphuraria-Red Microalgae (GS-RMA) in Water Treatment Systems, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 57. |
Kim SungJin, Sugihara Yuji, Eljamal Osama, Numerical Analysis on Turbulence and Air-Water Scalar Transport in Open-Channel Flow Influenced by Thermal Stratification and Surface Shear Stress, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 58. |
Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama, Removal of Ciprofloxacin from Aqueous Solutions by Nanoscale Zerovalent Iron-Based Materials: A Mini Review, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 59. |
Mokete Relebohile, Eljamal Osama, The Involvement of Nanoscale Zero Valent Iron during the Anaerobic Digestion of Sludge, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2020.10. |
| 60. |
Mokete Relebohile, Eljamal Osama, Analogy of iron-copper and iron-silver bimetals during the corrosion process, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, Because of their strong magnetic properties, the Fe based nanomaterials have successfully been used in order to remediate environmental contamination. The synthesis of the bimetallic nanoparticles was done following chemical reduction of ferric chloride with sodium borohydride then deposition of the respective bimetal. This study was conducted to determine the concentration influence on the dissolution of iron in the presence of the bimetallic nanoparticles along with determining the role of FeCu and FeAg bimetals during iron corrosion. The results showed that the higher the dosage, the higher the iron dissolution due to increased surface area hence reactivity. Also, the bimetals improved the reactivity of iron.. |
| 61. |
Mokete Relebohile, Eljamal Osama, Analogy of iron-copper and iron-silver bimetals during the corrosion process, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, Because of their strong magnetic properties, the Fe based nanomaterials have successfully been used in order to remediate environmental contamination. The synthesis of the bimetallic nanoparticles was done following chemical reduction of ferric chloride with sodium borohydride then deposition of the respective bimetal. This study was conducted to determine the concentration influence on the dissolution of iron in the presence of the bimetallic nanoparticles along with determining the role of FeCu and FeAg bimetals during iron corrosion. The results showed that the higher the dosage, the higher the iron dissolution due to increased surface area hence reactivity. Also, the bimetals improved the reactivity of iron.. |
| 62. |
Bensaida Khaoula, Eljamal Osama, Eljamal Ramadan, Mokete Relebohile, Sugihara Yuji, Effect of Bimetallic Zero Valent Iron Nanoparticles Ag/NZVI on Bacterial Growth, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, In this study, a 13-day operation was conducted in order to investigate the effect of Ag-Fe nanoparticles on bacterial growth. To do so, three samples (S1, S2, S3) made of freshly domestic wastewater were treated under anaerobic conditions. S1 was considered as the control batch while 50mg/L of zero valent iron nanoparticles (NZVI) and Ag-Fe bimetallic nanoparticles were added to S2 and S3, respectively. Results showed that the addition of NZVI was effective in activating the bacterial growth. However, Ag-Fe nanoparticles inhibited the bacterial growth. A comparison of the chemical oxygen demand COD of the three samples confirmed the obtained results.. |
| 63. |
Bensaida Khaoula, Eljamal Osama, Eljamal Ramadan, Mokete Relebohile, Sugihara Yuji, Effect of Bimetallic Zero Valent Iron Nanoparticles Ag/NZVI on Bacterial Growth, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, In this study, a 13-day operation was conducted in order to investigate the effect of Ag-Fe nanoparticles on bacterial growth. To do so, three samples (S1, S2, S3) made of freshly domestic wastewater were treated under anaerobic conditions. S1 was considered as the control batch while 50mg/L of zero valent iron nanoparticles (NZVI) and Ag-Fe bimetallic nanoparticles were added to S2 and S3, respectively. Results showed that the addition of NZVI was effective in activating the bacterial growth. However, Ag-Fe nanoparticles inhibited the bacterial growth. A comparison of the chemical oxygen demand COD of the three samples confirmed the obtained results.. |
| 64. |
Maamoun Ibrahim, Eljamal Osama, Thompson P. Ian, Eljamal Ramadan, Falyouna Omar, Sugihara Yuji, Effect of Nano Zero Valent Iron Delivery Method into Porous Media on Phosphorus Removal from Groundwater, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, The main aim of this study is to investigate the effect of the delivery method of nano zero valent iron (NZVI) into porous media on the removal of phosphorus from groundwater. Different column experiments were conducted considering injection and permeable reactive barrier (PRB) approaches using sand-packed column with 65 cm length and 10 cm inner diameter. Results revealed that Injecting 10 g of NZVI into C4 resulted in the highest sorption capacity and average removal efficiency of 25 mg/L phosphorus concentration over 14 days with 197.76 mg-P/g-NZVI and 84.8% respectively. The dissolved oxygen levels in the effluent samples of the NZVI column were declined due to the oxidation process of NZVI, which was accompanied by a lower ORP values. The change of the delivery methodology of NZVI into porous media affected its capacity to remove phosphorus, revealing that injection could be better than PRB in terms of the reactive performance.. |
| 65. |
Maamoun Ibrahim, Eljamal Osama, Thompson P. Ian, Eljamal Ramadan, Falyouna Omar, Sugihara Yuji, Effect of Nano Zero Valent Iron Delivery Method into Porous Media on Phosphorus Removal from Groundwater, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, The main aim of this study is to investigate the effect of the delivery method of nano zero valent iron (NZVI) into porous media on the removal of phosphorus from groundwater. Different column experiments were conducted considering injection and permeable reactive barrier (PRB) approaches using sand-packed column with 65 cm length and 10 cm inner diameter. Results revealed that Injecting 10 g of NZVI into C4 resulted in the highest sorption capacity and average removal efficiency of 25 mg/L phosphorus concentration over 14 days with 197.76 mg-P/g-NZVI and 84.8% respectively. The dissolved oxygen levels in the effluent samples of the NZVI column were declined due to the oxidation process of NZVI, which was accompanied by a lower ORP values. The change of the delivery methodology of NZVI into porous media affected its capacity to remove phosphorus, revealing that injection could be better than PRB in terms of the reactive performance.. |
| 66. |
Rahman Md. Matiar, Karmaker C. Shamal, Pal Animesh, Eljamal Osama, Saha Baran Bidyut, Factorial Experimental Design for Optimization of Cesium Removal from Aqueous Solutions, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, The effective removal of cesium from aqueous solution is an emerging issue all over the world particularly in Japan after destroyed Daiichi nuclear power plant of Fukushima. To reduce the expended chemicals and reagents in experimental work and number of the experiment, it is required to implement statistical optimization of the factors for the cesium removal process. In this study, factorial experimental design and multivariate regression technique were employed to evaluate the main effects and interactions among the pH, initial concentration and contact time in the cesium removal process using nZVI-Z as an adsorbent. The study revealed that maximum cesium removal occurred at pH level 6, initial concentration of 200 mg/L and contact time of 30 minutes. Initial concentration was the statistically significant factor followed by contact time. Moreover, the significant interaction effect was observed between contact time and initial concentration.. |
| 67. |
Rahman Md. Matiar, Karmaker C. Shamal, Pal Animesh, Eljamal Osama, Saha Baran Bidyut, Factorial Experimental Design for Optimization of Cesium Removal from Aqueous Solutions, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, The effective removal of cesium from aqueous solution is an emerging issue all over the world particularly in Japan after destroyed Daiichi nuclear power plant of Fukushima. To reduce the expended chemicals and reagents in experimental work and number of the experiment, it is required to implement statistical optimization of the factors for the cesium removal process. In this study, factorial experimental design and multivariate regression technique were employed to evaluate the main effects and interactions among the pH, initial concentration and contact time in the cesium removal process using nZVI-Z as an adsorbent. The study revealed that maximum cesium removal occurred at pH level 6, initial concentration of 200 mg/L and contact time of 30 minutes. Initial concentration was the statistically significant factor followed by contact time. Moreover, the significant interaction effect was observed between contact time and initial concentration.. |
| 68. |
Eljamal Ramadan, Eljamal Osama, Thompson P. Ian, Maamoun Ibrahim, Sugihara Yuji, Yilmaz Gulsum, Upgrading of Aerobic Sequencing Batch Reactor System with Adding Nanoscale Zero Valent Iron for Wastewater Treatment, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, The aim of this study was to investigate the effect of nano-scale zero-valent iron (nZVI) on the performance of aerobic sequencing batch reactors (SBRs) in terms of COD, phosphate removal and microbial species growth. Two lab scale SBRs were operated simultaneously for sixty days with and without adding nZVI. The reactors were fed with synthetic wastewater and acclimated with seed sludge which was taken from a full-scale municipal wastewater treatment plant in Istanbul. As a result, next generation sequencing technology analysis confirmed that the addition of nZVI in R2 promoted some bacterial types such as Xanthomonadales and inhibited others such as Clostridiales, confirming that the effect of nZVI on the bacterial growth was genera dependent. In addition, the phosphate and COD were completely removed at the end of the study and slightly enhanced with 15 % after the addition of nZVI in R2.. |
| 69. |
Eljamal Ramadan, Eljamal Osama, Thompson P. Ian, Maamoun Ibrahim, Sugihara Yuji, Yilmaz Gulsum, Upgrading of Aerobic Sequencing Batch Reactor System with Adding Nanoscale Zero Valent Iron for Wastewater Treatment, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2019.10, The aim of this study was to investigate the effect of nano-scale zero-valent iron (nZVI) on the performance of aerobic sequencing batch reactors (SBRs) in terms of COD, phosphate removal and microbial species growth. Two lab scale SBRs were operated simultaneously for sixty days with and without adding nZVI. The reactors were fed with synthetic wastewater and acclimated with seed sludge which was taken from a full-scale municipal wastewater treatment plant in Istanbul. As a result, next generation sequencing technology analysis confirmed that the addition of nZVI in R2 promoted some bacterial types such as Xanthomonadales and inhibited others such as Clostridiales, confirming that the effect of nZVI on the bacterial growth was genera dependent. In addition, the phosphate and COD were completely removed at the end of the study and slightly enhanced with 15 % after the addition of nZVI in R2.. |
| 70. |
Mokete Relebohile, Eljamal Osama, Analogy of iron-copper and iron-silver bimetals during the corrosion process, 2019.10. |
| 71. |
Bensaida Khaoula, Eljamal Osama, Eljamal Ramadan, Mokete Relebohile, Sugihara Yuji, Effect of Bimetallic Zero Valent Iron Nanoparticles Ag/NZVI on Bacterial Growth, 2019.10. |
| 72. |
Maamoun Ibrahim, Eljamal Osama, Thompson P. Ian, Eljamal Ramadan, Falyouna Omar, Sugihara Yuji, Effect of Nano Zero Valent Iron Delivery Method into Porous Media on Phosphorus Removal from Groundwater, 2019.10. |
| 73. |
エルジャマル オサマ, International Postgraduate Program in Japan: Challenges and Opportunities, MECHANICAL ENGINEERING AND SCIENCE POSTGRADUATE INTERNATIONAL CONFERENCE, 2018.12. |
| 74. |
エルジャマル オサマ, Nanoscale Zero Valent Iron (NZVI)-Based Bimetallic for Water Treatment, International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2018), 2018.10. |
| 75. |
Maamoun Ibrahim, Eljamal Osama, Matsunaga Nobuhiro, Enhancement of Nanoscale Zero-Valent Iron Stability in Aqueous Solution Via Metal Hydroxide Coating, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Concerns have been increased regarding the behavior of nanoscale zero-valent iron (nZVI) in subsurface environmental remediation applications. In this study, the iron particles were coated by magnesium hydroxide (Mg(OH)_2) shell in order to improve their suspension stability in aqueous solutions. Sedimentation tests were conducted for different ratios of the coating material to evaluate the enhancement of particles stability and to determine the optimum coating ratio. Results of sedimentation tests showed that, the coated iron particles Mg(OH)_2-CnZVI exhibited better stability performance than that of bare nZVI (BnZVI). Additionally, optical absorbance results depicted that Mg/Fe coating ratios of 0.8 and 1 showed less aggregation potential than that of the other coating ratios and BnZVI as well. Moreover, beside the enhanced stability, the addition of the nonmagnetic coating layer protected the nZVI core from the rapid corrosion. Further studies should be conducted to investigate the sustainability of the coated nZVI reactivity.. |
| 76. |
Maamoun Ibrahim, Eljamal Osama, Matsunaga Nobuhiro, Enhancement of Nanoscale Zero-Valent Iron Stability in Aqueous Solution Via Metal Hydroxide Coating, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Concerns have been increased regarding the behavior of nanoscale zero-valent iron (nZVI) in subsurface environmental remediation applications. In this study, the iron particles were coated by magnesium hydroxide (Mg(OH)_2) shell in order to improve their suspension stability in aqueous solutions. Sedimentation tests were conducted for different ratios of the coating material to evaluate the enhancement of particles stability and to determine the optimum coating ratio. Results of sedimentation tests showed that, the coated iron particles Mg(OH)_2-CnZVI exhibited better stability performance than that of bare nZVI (BnZVI). Additionally, optical absorbance results depicted that Mg/Fe coating ratios of 0.8 and 1 showed less aggregation potential than that of the other coating ratios and BnZVI as well. Moreover, beside the enhanced stability, the addition of the nonmagnetic coating layer protected the nZVI core from the rapid corrosion. Further studies should be conducted to investigate the sustainability of the coated nZVI reactivity.. |
| 77. |
Eljamal Ramadan, Eljamal Osama, Matsunaga Nobuhiro, Enhancement of the Reduction and Adsorption Mechanism of nZVI using an effective polyacrylamide as a nonionic polymer, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.. |
| 78. |
Eljamal Ramadan, Eljamal Osama, Matsunaga Nobuhiro, Enhancement of the Reduction and Adsorption Mechanism of nZVI using an effective polyacrylamide as a nonionic polymer, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.. |
| 79. |
Mokete Relebohile, Chen Kai, Eljamal Osama, Matsunaga Nobuhiro, Inspection of Iron-Copper Bimetal Performance in Chemically Altered Atmosphere, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, The reactivity of Nanoscale Zerovalent Iron (nZVI) can be enhanced by addition of the second metal to increase surface area. In this research, the influence of pH and oxygen supply on Fe-Cu bimetallic nanoparticles' reactivity was investigated. Fe-Cu nanoparticles were synthesized through ferric chloride reduction by sodium borohydride followed by deposition of Cu metal. Iron dissolution was enhanced in acidic pH due to the presence of H+ ions which make the surface to be positively charged whereas in alkaline pH, the OH- ions contribute to the passive layer formation thus limiting further oxidation. Continuous supply led to higher Fe-Cu corrosion as opposed to limited oxygen supply since oxygen enhanced oxidation. The significance of this study is to make deductions in contaminant remediation technologies.. |
| 80. |
Mokete Relebohile, Chen Kai, Eljamal Osama, Matsunaga Nobuhiro, Inspection of Iron-Copper Bimetal Performance in Chemically Altered Atmosphere, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, The reactivity of Nanoscale Zerovalent Iron (nZVI) can be enhanced by addition of the second metal to increase surface area. In this research, the influence of pH and oxygen supply on Fe-Cu bimetallic nanoparticles' reactivity was investigated. Fe-Cu nanoparticles were synthesized through ferric chloride reduction by sodium borohydride followed by deposition of Cu metal. Iron dissolution was enhanced in acidic pH due to the presence of H+ ions which make the surface to be positively charged whereas in alkaline pH, the OH- ions contribute to the passive layer formation thus limiting further oxidation. Continuous supply led to higher Fe-Cu corrosion as opposed to limited oxygen supply since oxygen enhanced oxidation. The significance of this study is to make deductions in contaminant remediation technologies.. |
| 81. |
Shubair Tamer, Eljamal Osama, Matsunaga Nobuhiro, Nano-Fe/Cu particles for the remediation of cesium contaminated solutions, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, The great East Japan Earthquake in 2011 triggered the Fukushima Daiichi nuclear power plant accident. Large amount of cesium was released into the environment following this severe accident. Therefore, this research work evaluated the applicability of nano-Fe/Cu particles for the removal of cesium from contaminated waters for the first time. Cesium removal was investigated using batch technique with respect to initial cesium concentration, contact time, temperature, pH, competing cations and dosage of nanoparticles. The results showed that nano-Fe/Cu particles demonstrated effective performance for removal of cesium. The removal efficiency exceeded 99% at initial cesium concentration of 1 mg/L and 1 g/L dose. The removal of cesium was largely depending on the solution pH and temperature. The current study proved the potential utility of the nano-Fe/Cu particles as a promising adsorbent for the treatment of waters containing cesium.. |
| 82. |
Shubair Tamer, Eljamal Osama, Matsunaga Nobuhiro, Nano-Fe/Cu particles for the remediation of cesium contaminated solutions, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, The great East Japan Earthquake in 2011 triggered the Fukushima Daiichi nuclear power plant accident. Large amount of cesium was released into the environment following this severe accident. Therefore, this research work evaluated the applicability of nano-Fe/Cu particles for the removal of cesium from contaminated waters for the first time. Cesium removal was investigated using batch technique with respect to initial cesium concentration, contact time, temperature, pH, competing cations and dosage of nanoparticles. The results showed that nano-Fe/Cu particles demonstrated effective performance for removal of cesium. The removal efficiency exceeded 99% at initial cesium concentration of 1 mg/L and 1 g/L dose. The removal of cesium was largely depending on the solution pH and temperature. The current study proved the potential utility of the nano-Fe/Cu particles as a promising adsorbent for the treatment of waters containing cesium.. |
| 83. |
Eljamal Osama, Nanoscale Zero Valent Iron (NZVI)-Based Bimetallic for Water Treatment, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10. |
| 84. |
TAKAMI Seiya, Eljamal Osama, Matsunaga Nobuhiro, Phosphorus Removal by using Nano-scale Iron Materials, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Nano-scale Zero Valent Iron (NZVI) was used to remove phosphorus from aqueous solution, and the influence of oxygen and pH were investigated. The higher removal efficiency was obtained from oxic condition. It is because that generated Fe^ and Fe^ will be formed oxide layer on the surface of NZVI which become good adsorbate. And the removal of phosphorus obviously increased when the solution pH was decreased to the acidic side due to the isoelectric point of NZVI. The higher removal efficiency was obtained under oxic and acidic pH condition. According to these results, NZVI was a optimum and useful material for removing phosphorus.. |
| 85. |
TAKAMI Seiya, Eljamal Osama, Matsunaga Nobuhiro, Phosphorus Removal by using Nano-scale Iron Materials, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Nano-scale Zero Valent Iron (NZVI) was used to remove phosphorus from aqueous solution, and the influence of oxygen and pH were investigated. The higher removal efficiency was obtained from oxic condition. It is because that generated Fe^ and Fe^ will be formed oxide layer on the surface of NZVI which become good adsorbate. And the removal of phosphorus obviously increased when the solution pH was decreased to the acidic side due to the isoelectric point of NZVI. The higher removal efficiency was obtained under oxic and acidic pH condition. According to these results, NZVI was a optimum and useful material for removing phosphorus.. |
| 86. |
Alkhudhayri Sami, Eljamal Osama, Eljamal Ramadan, Removal of boron from aqueous solutions using MgAl composition, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Although boron is an element of requirement for the growth of plants, animals and humans, environmental issues and health hazards are related to boron applications in various industries. Recently many techniques have been developed to remove boron from aqueous solutions; adsorption proved to be capable to treat solutions with low boron concentrations. Mg-Al bimetallic compound was synthesized and calcined. Then, was tested in a process to remove boron from aqueous solutions. Difference between calcined and non-calcined Mg-Al bimetallic compounds in removing boron from aqueous solutions were measured to determine whether the calcination process is of significant benefit. Experiments were conducted with variety of pH levels, temperatures dosage volume as well as initial boron concentration; thus finding the most suitable factors in the removing of boron in aqueous solutions using Mg-Al bimetallic compound.. |
| 87. |
Alkhudhayri Sami, Eljamal Osama, Eljamal Ramadan, Removal of boron from aqueous solutions using MgAl composition, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Although boron is an element of requirement for the growth of plants, animals and humans, environmental issues and health hazards are related to boron applications in various industries. Recently many techniques have been developed to remove boron from aqueous solutions; adsorption proved to be capable to treat solutions with low boron concentrations. Mg-Al bimetallic compound was synthesized and calcined. Then, was tested in a process to remove boron from aqueous solutions. Difference between calcined and non-calcined Mg-Al bimetallic compounds in removing boron from aqueous solutions were measured to determine whether the calcination process is of significant benefit. Experiments were conducted with variety of pH levels, temperatures dosage volume as well as initial boron concentration; thus finding the most suitable factors in the removing of boron in aqueous solutions using Mg-Al bimetallic compound.. |
| 88. |
Okasha Sameh, Eljamal Osama, Eljamal Ramadan, nZVI@TiO_2 Hetero-interface Activity for NO_3- Removal as Water Remediation Application, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Interface has a synergetic effect in catalytic reactions. Nano particle zero Valent iron (nZVI) is high active (Oxidant, Reductant) of almost contaminants of wastewater such like nitrate through reduction as part of water remediation. nZVI agglomeration lead to severely decreasing in surface area then hence drop in its activity. There were some additives served as anti-agglomeration such like polymers, bi-metals and stabilizers. However, metal oxide nanostructure could prohibit nZVI agglomeration furthermore create an interface with higher activity. TiO_2 as a photocatalytic material has same function after excitation with suitable energy. Electrons play main role for reduction while holes are for oxidation, and hence its efficiency depend on mainly in time recombination of electrons and holes. nZVI@TiO_2 successfully synthesized and demonstrated synergetic reduction removal activity for NO_3-. SEM have been used to analysis new composite structure, furthermore several batch experiments have been performed to suggest reduction possible scenario including future plan.. |
| 89. |
Okasha Sameh, Eljamal Osama, Eljamal Ramadan, nZVI@TiO_2 Hetero-interface Activity for NO_3- Removal as Water Remediation Application, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2018.10, Interface has a synergetic effect in catalytic reactions. Nano particle zero Valent iron (nZVI) is high active (Oxidant, Reductant) of almost contaminants of wastewater such like nitrate through reduction as part of water remediation. nZVI agglomeration lead to severely decreasing in surface area then hence drop in its activity. There were some additives served as anti-agglomeration such like polymers, bi-metals and stabilizers. However, metal oxide nanostructure could prohibit nZVI agglomeration furthermore create an interface with higher activity. TiO_2 as a photocatalytic material has same function after excitation with suitable energy. Electrons play main role for reduction while holes are for oxidation, and hence its efficiency depend on mainly in time recombination of electrons and holes. nZVI@TiO_2 successfully synthesized and demonstrated synergetic reduction removal activity for NO_3-. SEM have been used to analysis new composite structure, furthermore several batch experiments have been performed to suggest reduction possible scenario including future plan.. |
| 90. |
Takami Seiya, Eljamal Osama, Eljamal Ramadan, Matsunaga Nobuhiro, Continuous-flow of Nanoscale Zero Valent Iron based system for phosphorus removal, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, In this study, the removal performance of NZVI for phosphorus under different five condition such as 1) open (with Polishing Unit (1a) and without one (1b)), 2) full aerobic (air flow=1.2L/min. (2a) and 1L/min. (2b)) and 3) full anaerobic conditions (nitrogen flow=3L/min) were analyzed. The initial phosphorus concentration and feeding rate were maintained each approximately 25 mg P/L and 20 ml/min. In each condition, the reactor phosphorus removal rates for initial 3 hours were 77.6 ± 10.2% (1a), 96.3 ± 1.7% (1b), 95.6 ± 1.4% (2a), 95.5 ± 2.3% (2b) and 96.8 ± 2.0% (3). From these results, there are no big differences between them. However, all of the rates decreased to about 50 to 80% after 12 hours. The effluent total iron concentration from the reactor was also analyzed and the correlation with the effluent phosphorus concentration was calculated. As a result, correlation coefficient was R^2=0.963 (2a), R^2=0.897(2b), R^2=0.885(3) respectively, and it was confirmed that there is positive correlation.. |
| 91. |
Takami Seiya, Eljamal Osama, Eljamal Ramadan, Matsunaga Nobuhiro, Continuous-flow of Nanoscale Zero Valent Iron based system for phosphorus removal, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, In this study, the removal performance of NZVI for phosphorus under different five condition such as 1) open (with Polishing Unit (1a) and without one (1b)), 2) full aerobic (air flow=1.2L/min. (2a) and 1L/min. (2b)) and 3) full anaerobic conditions (nitrogen flow=3L/min) were analyzed. The initial phosphorus concentration and feeding rate were maintained each approximately 25 mg P/L and 20 ml/min. In each condition, the reactor phosphorus removal rates for initial 3 hours were 77.6 ± 10.2% (1a), 96.3 ± 1.7% (1b), 95.6 ± 1.4% (2a), 95.5 ± 2.3% (2b) and 96.8 ± 2.0% (3). From these results, there are no big differences between them. However, all of the rates decreased to about 50 to 80% after 12 hours. The effluent total iron concentration from the reactor was also analyzed and the correlation with the effluent phosphorus concentration was calculated. As a result, correlation coefficient was R^2=0.963 (2a), R^2=0.897(2b), R^2=0.885(3) respectively, and it was confirmed that there is positive correlation.. |
| 92. |
Aljamal Ramadan, Eljamal Osama, Khalil Ahmed, Saha B. B, Matsunaga Nobuhiro, Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10. |
| 93. |
Aljamal Ramadan, Eljamal Osama, Khalil Ahmed, Saha B. B, Matsunaga Nobuhiro, Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10. |
| 94. |
Maamoun Ibrahim, Eljamal Osama, Shubair Tamer, Noutsuka Hiroki, Saha Bidyut Baran, Matsunaga Nobuhiro, Integrating nano-scale zero valent iron (nZVI) in phosphorus removal from aqueous solution through porous media: packed-column experiment, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, This study investigates phosphorus removal from water through nZVI/river-sand packed columns. In order to evaluate their maximum phosphorus adsorption capacity, batch tests were first conducted for a synthesized nZVI (5:3.5 g / 𝐹𝑒𝐶𝑙_3 : 𝑁𝑎𝐵𝐻_4 and river-sand. Aqueous solution of 25 mg/l phosphorus concentration was introduced to three-Plexiglas packed-columns (65 cm length, 10 cm inner diameter and PV=1.53 L with different layers configuration. Solid precipitates of nZVI were characterized using TEM, XRD, BET and LD analyzers. Break-through curves showed that maximum phosphorus removal efficiency was recorded as 98.8% in Column 2 with two layers of nZVI/river-sand after only 17 hours, whereas Column 3 as a control column showed a rapid saturation (fully saturated by day 9 . Dissolved oxygen values were clearly decreased in the first and second columns due to oxygen consumption by nZVI oxidation, unlike Column 3 in which the values were almost close to the influent value. River-sand showed relatively high adsorption capacity of phosphorus as a porous medium.. |
| 95. |
Maamoun Ibrahim, Eljamal Osama, Shubair Tamer, Noutsuka Hiroki, Saha Bidyut Baran, Matsunaga Nobuhiro, Integrating nano-scale zero valent iron (nZVI) in phosphorus removal from aqueous solution through porous media: packed-column experiment, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, This study investigates phosphorus removal from water through nZVI/river-sand packed columns. In order to evaluate their maximum phosphorus adsorption capacity, batch tests were first conducted for a synthesized nZVI (5:3.5 g / 𝐹𝑒𝐶𝑙_3 : 𝑁𝑎𝐵𝐻_4 and river-sand. Aqueous solution of 25 mg/l phosphorus concentration was introduced to three-Plexiglas packed-columns (65 cm length, 10 cm inner diameter and PV=1.53 L with different layers configuration. Solid precipitates of nZVI were characterized using TEM, XRD, BET and LD analyzers. Break-through curves showed that maximum phosphorus removal efficiency was recorded as 98.8% in Column 2 with two layers of nZVI/river-sand after only 17 hours, whereas Column 3 as a control column showed a rapid saturation (fully saturated by day 9 . Dissolved oxygen values were clearly decreased in the first and second columns due to oxygen consumption by nZVI oxidation, unlike Column 3 in which the values were almost close to the influent value. River-sand showed relatively high adsorption capacity of phosphorus as a porous medium.. |
| 96. |
Mokete Relebohile, Yifan Hu, Eljamal Osama, Matsunaga Nobuhiro, Investigation on Nanoscale Zero Valent Iron interactions in aqueous solution, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, Nanoscale Zero Valent Iron (NZVI) is a waste water treatment approach that is currently gaining attention due to its high efficiency on removal of various water contaminants. To understand its chemical reaction mechanisms, NZVI interactions in aqueous solution free from contaminants were investigated in this study. Several batch experiments were conducted to determine the effect of pH, temperature and dissolved oxygen on ferrous and ferric concentrations. Results showed that the elution of iron ion occurred fast in the first 10 minutes followed by an obvious depletion in concentration due to iron precipitation, and then remained constant. The concentration of ferric was higher than that of ferrous in both oxic and anoxic conditions. Acidic condition enhanced the amount of iron elution because it provided H+ to promote the iron elution reaction forward. The highest temperature of 90℃ condition gave highest iron concentration. However, among lower temperatures, relatively lower temperature gave higher iron concentration. These results are useful for the NZVI application on water treatment in a large scale.. |
| 97. |
Mokete Relebohile, Yifan Hu, Eljamal Osama, Matsunaga Nobuhiro, Investigation on Nanoscale Zero Valent Iron interactions in aqueous solution, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, Nanoscale Zero Valent Iron (NZVI) is a waste water treatment approach that is currently gaining attention due to its high efficiency on removal of various water contaminants. To understand its chemical reaction mechanisms, NZVI interactions in aqueous solution free from contaminants were investigated in this study. Several batch experiments were conducted to determine the effect of pH, temperature and dissolved oxygen on ferrous and ferric concentrations. Results showed that the elution of iron ion occurred fast in the first 10 minutes followed by an obvious depletion in concentration due to iron precipitation, and then remained constant. The concentration of ferric was higher than that of ferrous in both oxic and anoxic conditions. Acidic condition enhanced the amount of iron elution because it provided H+ to promote the iron elution reaction forward. The highest temperature of 90℃ condition gave highest iron concentration. However, among lower temperatures, relatively lower temperature gave higher iron concentration. These results are useful for the NZVI application on water treatment in a large scale.. |
| 98. |
Shubair Tamer, Eljamal Osama, Khalil Ahmed, Matsunaga Nobuhiro, Nitrate Removal in Porous Media Using Nanoscale Zero Valent Iron: Column Experiment, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, The use of nanoscale zero valent iron (nZVI) as a reactive media in porous media has become a promising technology for contaminants removal from soil and groundwater. Therefore, the main aim of current work is to investigate nitrate removal from water using nZVI in an upflow packed sand column. The effects of one layer, multilayer and different thicknesses of nZVI/sand on nitrate removal were reported in this study. The initial nitrate concentration was 200 mg/L. The distribution of nitrate trapped inside the columns was evaluated by measuring nitrate concentration at various intermediate sampling points along the depth of the column in addition to the column outlet. The results indicated that the best condition to remove nitrate was observed when using single 10-cm high layer of nZVI/sand and more than 97% of influent nitrate was removed.. |
| 99. |
Shubair Tamer, Eljamal Osama, Khalil Ahmed, Matsunaga Nobuhiro, Nitrate Removal in Porous Media Using Nanoscale Zero Valent Iron: Column Experiment, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, The use of nanoscale zero valent iron (nZVI) as a reactive media in porous media has become a promising technology for contaminants removal from soil and groundwater. Therefore, the main aim of current work is to investigate nitrate removal from water using nZVI in an upflow packed sand column. The effects of one layer, multilayer and different thicknesses of nZVI/sand on nitrate removal were reported in this study. The initial nitrate concentration was 200 mg/L. The distribution of nitrate trapped inside the columns was evaluated by measuring nitrate concentration at various intermediate sampling points along the depth of the column in addition to the column outlet. The results indicated that the best condition to remove nitrate was observed when using single 10-cm high layer of nZVI/sand and more than 97% of influent nitrate was removed.. |
| 100. |
Amen Tareq W.M., Eljamal Osama, Khalil Ahmed M.E., Matsunaga Nobuhiro, Potential catalytic effect of ion copper bimetallic nanoparticles on digestion of anaerobic activated sludge at high iron concentrations, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, Throughout this research, prepared zero valent iron copper nanoparticles (Fe^0/Cu) was used in order to investigate the methane generation and the degradation of anaerobic activated sludge. The prepared Fe^0/Cu in different high concentrations (0.5, 1.5 and 3 g/L) were added to laboratory scale bioreactors to check its biogas generation efficiency compared with blank bioreactor. Furthermore, the organic matter degradation process was also studied by profiling the soluble chemical oxygen demand (SCOD). The results show that the Fe^0/Cu bimetallic particles facilitate the catalytic reactivity by increasing the generated biogas volume and methane yield. The total generated biogas increased by 235.6% for the bioreactors exposed with 1.5 g/L of Fe^0/Cu particles compared with blank. Collectively, results suggest that Fe^0/Cu was promising remediation of domestic activated sludge and consequently Fe^0/Cu system can be proposed as a cost-effective addition for the anaerobic digesters.. |
| 101. |
Amen Tareq W.M., Eljamal Osama, Khalil Ahmed M.E., Matsunaga Nobuhiro, Potential catalytic effect of ion copper bimetallic nanoparticles on digestion of anaerobic activated sludge at high iron concentrations, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2017.10, Throughout this research, prepared zero valent iron copper nanoparticles (Fe^0/Cu) was used in order to investigate the methane generation and the degradation of anaerobic activated sludge. The prepared Fe^0/Cu in different high concentrations (0.5, 1.5 and 3 g/L) were added to laboratory scale bioreactors to check its biogas generation efficiency compared with blank bioreactor. Furthermore, the organic matter degradation process was also studied by profiling the soluble chemical oxygen demand (SCOD). The results show that the Fe^0/Cu bimetallic particles facilitate the catalytic reactivity by increasing the generated biogas volume and methane yield. The total generated biogas increased by 235.6% for the bioreactors exposed with 1.5 g/L of Fe^0/Cu particles compared with blank. Collectively, results suggest that Fe^0/Cu was promising remediation of domestic activated sludge and consequently Fe^0/Cu system can be proposed as a cost-effective addition for the anaerobic digesters.. |
| 102. |
Khalil Ahmed M. E., Eljamal Osama, Amen Tareq W.M., Sugihara Yuji, Matsunaga Nobuhiro, Investigation of Contaminants Interference on Water Treatment by Supported Nanoscale Zero Valent Iron, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2016.10, Nitrate and phosphate are severe contaminants which cause eutrophication and series environmental problems. The treatment of these pollutants by supported nanoscale zero valent iron (nZVI) on activated charcoal (n-Fe0/C) was suggested as an effective and efficient tool more than unsupported nanoscale Fe0, because of its higher settling rates and improved hydraulic conductivity, the supported nano iron could be applied with easier operation in continuous treatment process of wastewater and in groundwater. In fact, wastewater and groundwater include numerous compounds other than nitrate and phosphate, and they interfere with their remediation process and removal efficiency by supported nano iron. Through this research, n-Fe0/C was synthesized and characterized via transmission electron microscopy (TEM) ), X-ray diffraction (XRD) and Brunauer–Emmett–Teller (BET) surface characterization then applied in batch experiments containing nitrate and nitrate with phosphate coexisting with copper compounds, calcium carbonates, sulfates, humic acid and domestic wastewater. Interference studies were carried out to investigate the extent of influence of each interfering substance. In general, the performance of removal for phosphate remained unchanged (nearly 95%), whereas nitrate decreased from 70% to about 50% in average after 90 min of batch experimental time for almost all interfering substances at high common concentrations except for copper compounds, which increased the removal efficiency that varied from 75 to 100%, depending on phosphate presence and type and amount of copper compound used.. |
| 103. |
Khalil Ahmed M. E., Eljamal Osama, Amen Tareq W.M., Sugihara Yuji, Matsunaga Nobuhiro, Investigation of Contaminants Interference on Water Treatment by Supported Nanoscale Zero Valent Iron, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2016.10, Nitrate and phosphate are severe contaminants which cause eutrophication and series environmental problems. The treatment of these pollutants by supported nanoscale zero valent iron (nZVI) on activated charcoal (n-Fe0/C) was suggested as an effective and efficient tool more than unsupported nanoscale Fe0, because of its higher settling rates and improved hydraulic conductivity, the supported nano iron could be applied with easier operation in continuous treatment process of wastewater and in groundwater. In fact, wastewater and groundwater include numerous compounds other than nitrate and phosphate, and they interfere with their remediation process and removal efficiency by supported nano iron. Through this research, n-Fe0/C was synthesized and characterized via transmission electron microscopy (TEM) ), X-ray diffraction (XRD) and Brunauer–Emmett–Teller (BET) surface characterization then applied in batch experiments containing nitrate and nitrate with phosphate coexisting with copper compounds, calcium carbonates, sulfates, humic acid and domestic wastewater. Interference studies were carried out to investigate the extent of influence of each interfering substance. In general, the performance of removal for phosphate remained unchanged (nearly 95%), whereas nitrate decreased from 70% to about 50% in average after 90 min of batch experimental time for almost all interfering substances at high common concentrations except for copper compounds, which increased the removal efficiency that varied from 75 to 100%, depending on phosphate presence and type and amount of copper compound used.. |
| 104. |
Khalil Ahmed M. E., Eljamal Osama, Matsunaga Nobuhiro, DIFFERENT NANOSCALE ZERO VALENT IRONS FOR NITRATE-POLLUTED WATER REMEDIATION, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2015.10, In this study, four nanoscale zero valent iron (NZVI) types were characterized and compared for nitrate removal from water. Through batch experiments, it was observed that old-purchased iron (OP-NZVI) had very low nitrate removal efficiency (10%) for more than 8 hours. Treated iron (T-NZVI) removed approximately half of nitrate concentration within 3 hours. Synthesized iron (S-NZVI) successfully reduced the whole amount of nitrate in one hour. Meanwhile, the improved iron (I-NZVI) removed the same amount within 20 minutes, which indicated the highest performance among other NZVIs. |
| 105. |
Khalil Ahmed M. E., Eljamal Osama, Matsunaga Nobuhiro, DIFFERENT NANOSCALE ZERO VALENT IRONS FOR NITRATE-POLLUTED WATER REMEDIATION, Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES), 2015.10, In this study, four nanoscale zero valent iron (NZVI) types were characterized and compared for nitrate removal from water. Through batch experiments, it was observed that old-purchased iron (OP-NZVI) had very low nitrate removal efficiency (10%) for more than 8 hours. Treated iron (T-NZVI) removed approximately half of nitrate concentration within 3 hours. Synthesized iron (S-NZVI) successfully reduced the whole amount of nitrate in one hour. Meanwhile, the improved iron (I-NZVI) removed the same amount within 20 minutes, which indicated the highest performance among other NZVIs. |
| 106. |
エルジャマル オサマ, Recent Activities of International Education in IGSES at Kyushu University, Japanese Society for Engineering Education, 63rd Annual Conference & Exposition, 2015.06. |
| 107. |
OSAMA ELJAMAL, Modeling of Phosphorus Retention in Calcium Carbonate Materials; Model Application to Column Experiments, 5th International SOWAC Seminar of JSPS, 2014.08. |
| 108. |
OSAMA ELJAMAL, Product Rich in Phosphorus Produced From Phosphorus-Contaminated Water, 2013 the 2nd International Conference on Material Science and Engineering Technology, 2013.11. |
| 109. |
ELJAMAL OSAMA, Soil Column Experiments to Study the Removal of Phosphorus from Water, 3rd International SOWAC Seminar of JSPS, 2013.08. |
| 110. |
ELJAMAL OSAMA, Pseudo Model for Phosphate Adsorption from Water onto Different Adsorbents, Japan Geosciences Union Meeting, 2013.05. |
| 111. |
ELJAMAL OSAMA, An Investigation of Phosphorus Removal from Aqueous Solution Using Byproduct Materials, 1st International SOWAC Seminar of JSPS, 2012.08. |
| 112. |
ELJAMAL OSAMA, Mass transport process and growth of heterotrophic bacteria, The XII International Symposium on Environmental Geotechnology, Energy and Global Sustainable Development, 2012.06. |
| 113. |
ELJAMAL OSAMA, Arsenic Immobilization by Zero Valent Iron: Numerical Modeling and Experimental study, The CINEST International Symposium on Earth Science and Technology, 2010.12. |
| 114. |
ELJAMAL Osama, JINNO Kenji, HOSOKAWA Tosao, MODELING OF BIOLOGICALLY MEDIATED REDOX PROCESSES USING SAWDUST AS A MATRIX, 水工学論文集(CD-ROM), 2007.02, A model simulating reactive transport in natural filter using sawdust as materials to improve the efficiency of filter is developed. The transport part of the model computes the changed in concentration over time caused by the processes of advection and dispersion. The kinetic sub model describes the heterotrophic metabolisms of several groups of bacteria. To model a complete redox sequence (aerobic oxidation, denitrification, Mn (IV) -reduction, Fe (III) -reduction and sulfate reduction) four functional bacterial groups (X1, X2, X3 and X4) are defined. The growth and metabolisms are formulated using the Double Monod kinetic equation. The model takes into account the exchange between the different phases (mobile phase, bio phase and matrix phase). The results from a laboratory soil-sawdust columns experiments are used to verify the simulation results of the model. While the availability of organic carbon is one of the most important factors that affects bacterial activity in natural filter. This study demonstrates that using sawdust as a carbon source can improve the biologically mediated redox processes.. |
