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Issue 5, 2017
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A conductive wood membrane anode improves effluent quality of microbial fuel cells

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Abstract

Microbial fuel cell (MFC) technology demonstrates good potential for recovering energy from wastewater, but it has been insufficient to act as a stand-alone treatment solution because its poor effluent quality cannot meet discharge standards. This study presents a new wood-based membrane anode for MFCs, which greatly improved the removal efficiencies for chemical oxygen demand (95–97%), total nitrogen (85–91%), and total phosphorus (89–93%) from wastewater compared with a traditional carbon cloth anode. The effluent quality from the wood-anode MFC was in compliance with wastewater effluent discharge standards. Similar power outputs were obtained from MFCs equipped with different anodes (248–295 mW m−2), and no significant fouling was observed on the membrane anode. The long and well-aligned channels in the wood anode have high surface area, which allows cell acclimation without blocking water flow. The wood filtration anode enables MFCs to become a stand-alone technology for energy-efficient wastewater treatment.

Graphical abstract: A conductive wood membrane anode improves effluent quality of microbial fuel cells

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Article information


Submitted
24 Apr 2017
Accepted
17 Jul 2017
First published
18 Jul 2017

Environ. Sci.: Water Res. Technol., 2017,3, 940-946
Article type
Paper

A conductive wood membrane anode improves effluent quality of microbial fuel cells

Z. Huang, A. Gong, D. Hou, L. Hu and Z. J. Ren, Environ. Sci.: Water Res. Technol., 2017, 3, 940
DOI: 10.1039/C7EW00130D

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