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Directly applicable microbial fuel cells in aeration tank for wastewater treatment.
Bioelectrochemistry. 2010 Apr; 78(1):72-9.B

Abstract

The application of microbial fuel cell (MFC) for wastewater treatment is a promising strategy for the simultaneous treatment of pollutants and generation of electricity. However, for practical application, there are several limitations to the MFC that involve biological and engineering aspects. In this study, a single-chambered MFC able to submerge into the aeration tank of the activated sludge process was developed to optimize the cell configuration and electrode materials. Among four MFCs with different electrode materials, the MFC with a graphite felt (GF) anode and a GF cathode showed the highest power density of 16.7 W m(-3) and the lowest internal resistance of 17 Omega. When the blower was stopped to evaluate the effect of mixing intensity, the concentration of dissolved oxygen nevertheless remained at 8 mg O2 L(-1), and the cell voltage of MFCs dropped rapidly and reached 30 mV. However, the cell voltage immediately returned to around 200 mV after the blowing of air. The MFCs with a GF cathode were sensitive to mixing intensity. At the very low concentration of 0.2 mg O2 L(-1), the cell voltage remained at a high level of 200 mV when the oxygen close to the cathode remained and mixing was sufficient.

Authors+Show Affiliations

Department of Civil and Environmental Engineering, Pusan National University, Busan 609-735, South Korea. jhwan2380@pnu.krNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19674944

Citation

Cha, Jaehwan, et al. "Directly Applicable Microbial Fuel Cells in Aeration Tank for Wastewater Treatment." Bioelectrochemistry (Amsterdam, Netherlands), vol. 78, no. 1, 2010, pp. 72-9.
Cha J, Choi S, Yu H, et al. Directly applicable microbial fuel cells in aeration tank for wastewater treatment. Bioelectrochemistry. 2010;78(1):72-9.
Cha, J., Choi, S., Yu, H., Kim, H., & Kim, C. (2010). Directly applicable microbial fuel cells in aeration tank for wastewater treatment. Bioelectrochemistry (Amsterdam, Netherlands), 78(1), 72-9. https://doi.org/10.1016/j.bioelechem.2009.07.009
Cha J, et al. Directly Applicable Microbial Fuel Cells in Aeration Tank for Wastewater Treatment. Bioelectrochemistry. 2010;78(1):72-9. PubMed PMID: 19674944.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Directly applicable microbial fuel cells in aeration tank for wastewater treatment. AU - Cha,Jaehwan, AU - Choi,Soojung, AU - Yu,Hana, AU - Kim,Hyosoo, AU - Kim,Changwon, Y1 - 2009/07/25/ PY - 2009/01/16/received PY - 2009/07/12/revised PY - 2009/07/17/accepted PY - 2009/8/14/entrez PY - 2009/8/14/pubmed PY - 2010/6/15/medline SP - 72 EP - 9 JF - Bioelectrochemistry (Amsterdam, Netherlands) JO - Bioelectrochemistry VL - 78 IS - 1 N2 - The application of microbial fuel cell (MFC) for wastewater treatment is a promising strategy for the simultaneous treatment of pollutants and generation of electricity. However, for practical application, there are several limitations to the MFC that involve biological and engineering aspects. In this study, a single-chambered MFC able to submerge into the aeration tank of the activated sludge process was developed to optimize the cell configuration and electrode materials. Among four MFCs with different electrode materials, the MFC with a graphite felt (GF) anode and a GF cathode showed the highest power density of 16.7 W m(-3) and the lowest internal resistance of 17 Omega. When the blower was stopped to evaluate the effect of mixing intensity, the concentration of dissolved oxygen nevertheless remained at 8 mg O2 L(-1), and the cell voltage of MFCs dropped rapidly and reached 30 mV. However, the cell voltage immediately returned to around 200 mV after the blowing of air. The MFCs with a GF cathode were sensitive to mixing intensity. At the very low concentration of 0.2 mg O2 L(-1), the cell voltage remained at a high level of 200 mV when the oxygen close to the cathode remained and mixing was sufficient. SN - 1878-562X UR - https://www.unboundmedicine.com/medline/citation/19674944/Directly_applicable_microbial_fuel_cells_in_aeration_tank_for_wastewater_treatment_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1567-5394(09)00137-6 DB - PRIME DP - Unbound Medicine ER -