One way to reduce treatment cost while producing useful products from wastewater is the microbial fuel cell (MFC) technology. It provides a means of treating wastewater with simultaneous production of energy. In the present study, the H-type MFC was used to study the effect of salt enrichment on electricity generation using carbon and copper electrodes with oxygen as electron acceptor. Wastewater from septic tank was used as substrate, one set of which was enriched with 1M NaCl. The voltage and current generated were monitored using a multimeter which was connected to the anode and cathode by a copper wire. Oxygen was used as electron acceptor at the cathode chamber. Voltage and current readings were taken per hour per day for 15days. Wastewater treatability was determined by comparing the biological oxygen demand (BOD), dissolved oxygen (DO), chemical oxygen demand (COD) and total dissolved solid (TDS) of the wastewaters before and after treatment. The results show that the fuel cells generated voltages and currents that varied according to the electrode used. Salt enrichment enhanced the efficiency of both current and voltage generation in the MFCs. Carbon electrode MFC performed better than copper electrode MFC. Both the enriched and the un-enriched MFCs had very high percentage removal of BOD, DO, COD and TDS in both carbon and copper electrode MFCs. Do and BOD percentage removals were at least 60% in all the MFCs while the CODs removals were at least 50% in all the treatments. The least percentage wastewater parameter removal was observed in TDS of salt-enriched copper electrode MFC. The study proved that wastewater can be conveniently treated using MFC. The best option would be to use salt-enrichment in a carbon-electrode microbial fuel cell.
| Published in | Advances in Applied Sciences (Volume 1, Issue 3) |
| DOI | 10.11648/j.aas.20160103.14 |
| Page(s) | 69-77 |
| 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), 2016. Published by Science Publishing Group |
MFC, Waste Water Treatment, Electricity Generation, Salt Enrichment
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APA Style
Akujob Campbell Onyeka, Odu Ngozi Nma, Okorondu Sylvester Ifunanya. (2016). Effect of Salt Enrichment on Electricity Generation and Waste Water Treatment in a Microbial Fuel Using Oxygen as Electron Acceptors. Advances in Applied Sciences, 1(3), 69-77. https://doi.org/10.11648/j.aas.20160103.14
ACS Style
Akujob Campbell Onyeka; Odu Ngozi Nma; Okorondu Sylvester Ifunanya. Effect of Salt Enrichment on Electricity Generation and Waste Water Treatment in a Microbial Fuel Using Oxygen as Electron Acceptors. Adv. Appl. Sci. 2016, 1(3), 69-77. doi: 10.11648/j.aas.20160103.14
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Download@article{10.11648/j.aas.20160103.14,
author = {Akujob Campbell Onyeka and Odu Ngozi Nma and Okorondu Sylvester Ifunanya},
title = {Effect of Salt Enrichment on Electricity Generation and Waste Water Treatment in a Microbial Fuel Using Oxygen as Electron Acceptors},
journal = {Advances in Applied Sciences},
volume = {1},
number = {3},
pages = {69-77},
doi = {10.11648/j.aas.20160103.14},
url = {https://doi.org/10.11648/j.aas.20160103.14},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aas.20160103.14},
abstract = {One way to reduce treatment cost while producing useful products from wastewater is the microbial fuel cell (MFC) technology. It provides a means of treating wastewater with simultaneous production of energy. In the present study, the H-type MFC was used to study the effect of salt enrichment on electricity generation using carbon and copper electrodes with oxygen as electron acceptor. Wastewater from septic tank was used as substrate, one set of which was enriched with 1M NaCl. The voltage and current generated were monitored using a multimeter which was connected to the anode and cathode by a copper wire. Oxygen was used as electron acceptor at the cathode chamber. Voltage and current readings were taken per hour per day for 15days. Wastewater treatability was determined by comparing the biological oxygen demand (BOD), dissolved oxygen (DO), chemical oxygen demand (COD) and total dissolved solid (TDS) of the wastewaters before and after treatment. The results show that the fuel cells generated voltages and currents that varied according to the electrode used. Salt enrichment enhanced the efficiency of both current and voltage generation in the MFCs. Carbon electrode MFC performed better than copper electrode MFC. Both the enriched and the un-enriched MFCs had very high percentage removal of BOD, DO, COD and TDS in both carbon and copper electrode MFCs. Do and BOD percentage removals were at least 60% in all the MFCs while the CODs removals were at least 50% in all the treatments. The least percentage wastewater parameter removal was observed in TDS of salt-enriched copper electrode MFC. The study proved that wastewater can be conveniently treated using MFC. The best option would be to use salt-enrichment in a carbon-electrode microbial fuel cell.},
year = {2016}
}
TY - JOUR T1 - Effect of Salt Enrichment on Electricity Generation and Waste Water Treatment in a Microbial Fuel Using Oxygen as Electron Acceptors AU - Akujob Campbell Onyeka AU - Odu Ngozi Nma AU - Okorondu Sylvester Ifunanya Y1 - 2016/11/14 PY - 2016 N1 - https://doi.org/10.11648/j.aas.20160103.14 DO - 10.11648/j.aas.20160103.14 T2 - Advances in Applied Sciences JF - Advances in Applied Sciences JO - Advances in Applied Sciences SP - 69 EP - 77 PB - Science Publishing Group SN - 2575-1514 UR - https://doi.org/10.11648/j.aas.20160103.14 AB - One way to reduce treatment cost while producing useful products from wastewater is the microbial fuel cell (MFC) technology. It provides a means of treating wastewater with simultaneous production of energy. In the present study, the H-type MFC was used to study the effect of salt enrichment on electricity generation using carbon and copper electrodes with oxygen as electron acceptor. Wastewater from septic tank was used as substrate, one set of which was enriched with 1M NaCl. The voltage and current generated were monitored using a multimeter which was connected to the anode and cathode by a copper wire. Oxygen was used as electron acceptor at the cathode chamber. Voltage and current readings were taken per hour per day for 15days. Wastewater treatability was determined by comparing the biological oxygen demand (BOD), dissolved oxygen (DO), chemical oxygen demand (COD) and total dissolved solid (TDS) of the wastewaters before and after treatment. The results show that the fuel cells generated voltages and currents that varied according to the electrode used. Salt enrichment enhanced the efficiency of both current and voltage generation in the MFCs. Carbon electrode MFC performed better than copper electrode MFC. Both the enriched and the un-enriched MFCs had very high percentage removal of BOD, DO, COD and TDS in both carbon and copper electrode MFCs. Do and BOD percentage removals were at least 60% in all the MFCs while the CODs removals were at least 50% in all the treatments. The least percentage wastewater parameter removal was observed in TDS of salt-enriched copper electrode MFC. The study proved that wastewater can be conveniently treated using MFC. The best option would be to use salt-enrichment in a carbon-electrode microbial fuel cell. VL - 1 IS - 3 ER -
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