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Substrate removal and electricity generation in a membrane-less microbial fuel cell for biological treatment of wastewater.
Bioresour Technol. 2013 Jun; 138:109-16.BT

Abstract

Microbial fuel cells have gained popularity in recent years due to its promise in converting organic wastewater into renewable electrical energy. In this study, a membrane-less MFC with a biocathode was developed to evaluate its performance in electricity generation while simultaneously treating wastewater. The MFC fed with a continuous flow of 2g/day acetate produced a power density of 30 mW/m(2) and current density of 245 mA/m(2). A substrate degradation efficiency (SDE) of 75.9% was achieved with 48.7% attributed to the anaerobic process and 27.2% to the aerobic process. Sequencing analysis of the microbial consortia using 16S rDNA pryosequencing showed the predominance of Bacteroidia in the anode after one month of operation, while the microbial community in the cathode chamber was dominated by Gamma-proteobacteria and Beta-proteobacteria. Coulombic efficiencies varied from 19.8% to 58.1% using different acetate concentrations, indicating power density can be further improved through the accumulation of electron-transferring bacteria.

Authors+Show Affiliations

Civil and Environmental Engineering, University of California, Irvine, CA 92697, USA.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

23612168

Citation

Wang, Haiping, et al. "Substrate Removal and Electricity Generation in a Membrane-less Microbial Fuel Cell for Biological Treatment of Wastewater." Bioresource Technology, vol. 138, 2013, pp. 109-16.
Wang H, Jiang SC, Wang Y, et al. Substrate removal and electricity generation in a membrane-less microbial fuel cell for biological treatment of wastewater. Bioresour Technol. 2013;138:109-16.
Wang, H., Jiang, S. C., Wang, Y., & Xiao, B. (2013). Substrate removal and electricity generation in a membrane-less microbial fuel cell for biological treatment of wastewater. Bioresource Technology, 138, 109-16. https://doi.org/10.1016/j.biortech.2013.03.172
Wang H, et al. Substrate Removal and Electricity Generation in a Membrane-less Microbial Fuel Cell for Biological Treatment of Wastewater. Bioresour Technol. 2013;138:109-16. PubMed PMID: 23612168.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Substrate removal and electricity generation in a membrane-less microbial fuel cell for biological treatment of wastewater. AU - Wang,Haiping, AU - Jiang,Sunny C, AU - Wang,Yun, AU - Xiao,Bo, Y1 - 2013/04/03/ PY - 2013/01/06/received PY - 2013/03/24/revised PY - 2013/03/25/accepted PY - 2013/4/25/entrez PY - 2013/4/25/pubmed PY - 2013/12/19/medline SP - 109 EP - 16 JF - Bioresource technology JO - Bioresour Technol VL - 138 N2 - Microbial fuel cells have gained popularity in recent years due to its promise in converting organic wastewater into renewable electrical energy. In this study, a membrane-less MFC with a biocathode was developed to evaluate its performance in electricity generation while simultaneously treating wastewater. The MFC fed with a continuous flow of 2g/day acetate produced a power density of 30 mW/m(2) and current density of 245 mA/m(2). A substrate degradation efficiency (SDE) of 75.9% was achieved with 48.7% attributed to the anaerobic process and 27.2% to the aerobic process. Sequencing analysis of the microbial consortia using 16S rDNA pryosequencing showed the predominance of Bacteroidia in the anode after one month of operation, while the microbial community in the cathode chamber was dominated by Gamma-proteobacteria and Beta-proteobacteria. Coulombic efficiencies varied from 19.8% to 58.1% using different acetate concentrations, indicating power density can be further improved through the accumulation of electron-transferring bacteria. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/23612168/Substrate_removal_and_electricity_generation_in_a_membrane_less_microbial_fuel_cell_for_biological_treatment_of_wastewater_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(13)00576-2 DB - PRIME DP - Unbound Medicine ER -