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Evaluation of organic matter removal and electricity generation by using integrated microbial fuel cells for wastewater treatment.
Environ Technol. 2016; 37(2):228-36.ET

Abstract

A floating all-in-one type of microbial fuel cell (Fa-MFC) that allows simple operation and installation in existing wastewater reservoirs for decomposition of organic matter was designed. A prototype cell was constructed by fixing a tubular floater to an assembly composed of a proton-exchange membrane and an air-cathode. To compare anode materials, carbon-cloth anodes or carbon-brush anodes were included in the assembly. The fabricated assemblies were floated in 1-L beakers filled with acetate medium. Both reactors removed acetate at a rate of 133-181 mg/L/d. The Fa-MFC quipped with brush anodes generated a 1.7-fold higher maximum power density (197 mW/m(2)-cathode area) than did that with cloth anodes (119 mW/m(2)-cathode area). To evaluate the performance of the Fa-MFCs on more realistic substrates, artificial wastewater, containing peptone and meat extract, was placed in a 2-L beaker, and the Fa-MFC with brush anodes was floated in the beaker. The Fa-MFC removed the chemical oxygen demand of the wastewater at a rate of 465-1029 mg/L/d, and generated a maximum power density of 152 mW/m(2)-cathode area. When the Fa-MFC was fed with actual livestock wastewater, the biological oxygen demand of the wastewater was removed at a rate of 45-119 mg/L/d, with electricity generation of 95 mW/m(2)-cathode area. Bacteria related to Geobacter sulfurreducens were predominantly detected in the anode biofilm, as deduced from the analysis of the 16S rRNA gene sequence.

Authors+Show Affiliations

a Animal Waste Management and Environment Division , NARO Institute of Livestock and Grassland Science , 2 Ikenodai, Tsukuba , Ibaraki 305-0901 , Japan.a Animal Waste Management and Environment Division , NARO Institute of Livestock and Grassland Science , 2 Ikenodai, Tsukuba , Ibaraki 305-0901 , Japan.a Animal Waste Management and Environment Division , NARO Institute of Livestock and Grassland Science , 2 Ikenodai, Tsukuba , Ibaraki 305-0901 , Japan.a Animal Waste Management and Environment Division , NARO Institute of Livestock and Grassland Science , 2 Ikenodai, Tsukuba , Ibaraki 305-0901 , Japan.

Pub Type(s)

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

Language

eng

PubMed ID

26118304

Citation

Yamashita, Takahiro, et al. "Evaluation of Organic Matter Removal and Electricity Generation By Using Integrated Microbial Fuel Cells for Wastewater Treatment." Environmental Technology, vol. 37, no. 2, 2016, pp. 228-36.
Yamashita T, Ishida M, Ogino A, et al. Evaluation of organic matter removal and electricity generation by using integrated microbial fuel cells for wastewater treatment. Environ Technol. 2016;37(2):228-36.
Yamashita, T., Ishida, M., Ogino, A., & Yokoyama, H. (2016). Evaluation of organic matter removal and electricity generation by using integrated microbial fuel cells for wastewater treatment. Environmental Technology, 37(2), 228-36. https://doi.org/10.1080/09593330.2015.1066874
Yamashita T, et al. Evaluation of Organic Matter Removal and Electricity Generation By Using Integrated Microbial Fuel Cells for Wastewater Treatment. Environ Technol. 2016;37(2):228-36. PubMed PMID: 26118304.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Evaluation of organic matter removal and electricity generation by using integrated microbial fuel cells for wastewater treatment. AU - Yamashita,Takahiro, AU - Ishida,Mitsuyoshi, AU - Ogino,Akifumi, AU - Yokoyama,Hiroshi, Y1 - 2015/07/24/ PY - 2015/6/30/entrez PY - 2015/6/30/pubmed PY - 2016/9/8/medline KW - all-in-one architecture KW - electricity generation KW - floating KW - microbial fuel cells KW - wastewater treatment SP - 228 EP - 36 JF - Environmental technology JO - Environ Technol VL - 37 IS - 2 N2 - A floating all-in-one type of microbial fuel cell (Fa-MFC) that allows simple operation and installation in existing wastewater reservoirs for decomposition of organic matter was designed. A prototype cell was constructed by fixing a tubular floater to an assembly composed of a proton-exchange membrane and an air-cathode. To compare anode materials, carbon-cloth anodes or carbon-brush anodes were included in the assembly. The fabricated assemblies were floated in 1-L beakers filled with acetate medium. Both reactors removed acetate at a rate of 133-181 mg/L/d. The Fa-MFC quipped with brush anodes generated a 1.7-fold higher maximum power density (197 mW/m(2)-cathode area) than did that with cloth anodes (119 mW/m(2)-cathode area). To evaluate the performance of the Fa-MFCs on more realistic substrates, artificial wastewater, containing peptone and meat extract, was placed in a 2-L beaker, and the Fa-MFC with brush anodes was floated in the beaker. The Fa-MFC removed the chemical oxygen demand of the wastewater at a rate of 465-1029 mg/L/d, and generated a maximum power density of 152 mW/m(2)-cathode area. When the Fa-MFC was fed with actual livestock wastewater, the biological oxygen demand of the wastewater was removed at a rate of 45-119 mg/L/d, with electricity generation of 95 mW/m(2)-cathode area. Bacteria related to Geobacter sulfurreducens were predominantly detected in the anode biofilm, as deduced from the analysis of the 16S rRNA gene sequence. SN - 1479-487X UR - https://www.unboundmedicine.com/medline/citation/26118304/Evaluation_of_organic_matter_removal_and_electricity_generation_by_using_integrated_microbial_fuel_cells_for_wastewater_treatment_ L2 - https://www.tandfonline.com/doi/full/10.1080/09593330.2015.1066874 DB - PRIME DP - Unbound Medicine ER -