Anaerobic digestion is often used to stabilized and convert organic wastes into methane and biological fertilizer. However, when applied to fecal sludge, it doesn’t yield good methane due to its high content of nitrogen. Here we have conducted anaerobic digestion of fecal sludge in the presence of iron powder (Fe) as electron donor. Results showed that 4822.7 mL CH4 kg-1 was successfully recovered from fecal sludge in the control. The use of Fe in the anaerobic bio-digester remarkably improved methane yield. Indeed, up to 9933.3 mL CH4 kg-1 wet sludge was recovered when Fe is properly used (1 g Fe for 400 g wet weight), compared to 4822.7 mL kg-1 in the control. The concentration of methane in the produced biogas increased from 58.0% in the control to 72.5% and 77.6% in the presence of iron powder, respectively at the dose rate of 0.5 g Fe and 1 g Fe per 400 g wet sludge. COD removal efficiency was also greatly improved. 65.5% of COD was removed when excreta was properly spiked with Fe (1g Fe) against 42.2% in the control. This corresponds to an increasing rate of 23%. Furthermore, the presence of Fe in the digesters considerably reduced the odor by trapping produced sulphur ion and prevent the formation of H2S responsible for the sickening odor.
| Published in | American Journal of Environmental Protection (Volume 5, Issue 6) |
| DOI | 10.11648/j.ajep.20160506.15 |
| Page(s) | 179-186 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Fecal Sludge, Anaerobic Digestion, Valorization, Iron Powder, Methane
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APA Style
Ignace Chabi Agani, Fidèle Suanon, Biaou Dimon, Edouard Binessi Ifon, Frank Yovo, et al. (2017). Enhancement of Fecal Sludge Conversion Into Biogas Using Iron Powder During Anaerobic Digestion Process. American Journal of Environmental Protection, 5(6), 179-186. https://doi.org/10.11648/j.ajep.20160506.15
ACS Style
Ignace Chabi Agani; Fidèle Suanon; Biaou Dimon; Edouard Binessi Ifon; Frank Yovo, et al. Enhancement of Fecal Sludge Conversion Into Biogas Using Iron Powder During Anaerobic Digestion Process. Am. J. Environ. Prot. 2017, 5(6), 179-186. doi: 10.11648/j.ajep.20160506.15
AMA Style
Ignace Chabi Agani, Fidèle Suanon, Biaou Dimon, Edouard Binessi Ifon, Frank Yovo, et al. Enhancement of Fecal Sludge Conversion Into Biogas Using Iron Powder During Anaerobic Digestion Process. Am J Environ Prot. 2017;5(6):179-186. doi: 10.11648/j.ajep.20160506.15
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author = {Ignace Chabi Agani and Fidèle Suanon and Biaou Dimon and Edouard Binessi Ifon and Frank Yovo and Valentin Dieudonné Wotto and Olusegun Kazeem Abass and Mathieu Nsenga Kumwimba},
title = {Enhancement of Fecal Sludge Conversion Into Biogas Using Iron Powder During Anaerobic Digestion Process},
journal = {American Journal of Environmental Protection},
volume = {5},
number = {6},
pages = {179-186},
doi = {10.11648/j.ajep.20160506.15},
url = {https://doi.org/10.11648/j.ajep.20160506.15},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajep.20160506.15},
abstract = {Anaerobic digestion is often used to stabilized and convert organic wastes into methane and biological fertilizer. However, when applied to fecal sludge, it doesn’t yield good methane due to its high content of nitrogen. Here we have conducted anaerobic digestion of fecal sludge in the presence of iron powder (Fe) as electron donor. Results showed that 4822.7 mL CH4 kg-1 was successfully recovered from fecal sludge in the control. The use of Fe in the anaerobic bio-digester remarkably improved methane yield. Indeed, up to 9933.3 mL CH4 kg-1 wet sludge was recovered when Fe is properly used (1 g Fe for 400 g wet weight), compared to 4822.7 mL kg-1 in the control. The concentration of methane in the produced biogas increased from 58.0% in the control to 72.5% and 77.6% in the presence of iron powder, respectively at the dose rate of 0.5 g Fe and 1 g Fe per 400 g wet sludge. COD removal efficiency was also greatly improved. 65.5% of COD was removed when excreta was properly spiked with Fe (1g Fe) against 42.2% in the control. This corresponds to an increasing rate of 23%. Furthermore, the presence of Fe in the digesters considerably reduced the odor by trapping produced sulphur ion and prevent the formation of H2S responsible for the sickening odor.},
year = {2017}
}
TY - JOUR T1 - Enhancement of Fecal Sludge Conversion Into Biogas Using Iron Powder During Anaerobic Digestion Process AU - Ignace Chabi Agani AU - Fidèle Suanon AU - Biaou Dimon AU - Edouard Binessi Ifon AU - Frank Yovo AU - Valentin Dieudonné Wotto AU - Olusegun Kazeem Abass AU - Mathieu Nsenga Kumwimba Y1 - 2017/01/09 PY - 2017 N1 - https://doi.org/10.11648/j.ajep.20160506.15 DO - 10.11648/j.ajep.20160506.15 T2 - American Journal of Environmental Protection JF - American Journal of Environmental Protection JO - American Journal of Environmental Protection SP - 179 EP - 186 PB - Science Publishing Group SN - 2328-5699 UR - https://doi.org/10.11648/j.ajep.20160506.15 AB - Anaerobic digestion is often used to stabilized and convert organic wastes into methane and biological fertilizer. However, when applied to fecal sludge, it doesn’t yield good methane due to its high content of nitrogen. Here we have conducted anaerobic digestion of fecal sludge in the presence of iron powder (Fe) as electron donor. Results showed that 4822.7 mL CH4 kg-1 was successfully recovered from fecal sludge in the control. The use of Fe in the anaerobic bio-digester remarkably improved methane yield. Indeed, up to 9933.3 mL CH4 kg-1 wet sludge was recovered when Fe is properly used (1 g Fe for 400 g wet weight), compared to 4822.7 mL kg-1 in the control. The concentration of methane in the produced biogas increased from 58.0% in the control to 72.5% and 77.6% in the presence of iron powder, respectively at the dose rate of 0.5 g Fe and 1 g Fe per 400 g wet sludge. COD removal efficiency was also greatly improved. 65.5% of COD was removed when excreta was properly spiked with Fe (1g Fe) against 42.2% in the control. This corresponds to an increasing rate of 23%. Furthermore, the presence of Fe in the digesters considerably reduced the odor by trapping produced sulphur ion and prevent the formation of H2S responsible for the sickening odor. VL - 5 IS - 6 ER -
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