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Research Article
Generation of Power by Microbial Fuel Cell with Ferricyanide in Biodegradation of Benzene
Article first published online: 13 DEC 2012
DOI: 10.1002/clen.201200198
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Wu, C.-H., Lai, C.-Y., Lin, C.-W. and Kao, M.-H. (2013), Generation of Power by Microbial Fuel Cell with Ferricyanide in Biodegradation of Benzene. Clean Soil Air Water, 41: 390–395. doi: 10.1002/clen.201200198
Publication History
- Issue published online: 4 APR 2013
- Article first published online: 13 DEC 2012
- Manuscript Accepted: 18 JUL 2012
- Manuscript Revised: 1 JUL 2012
- Manuscript Received: 21 APR 2012
- Abstract
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Keywords:
- Anaerobic process;
- Electrochemical system;
- Exoelectrogen;
- MFC technology;
- Wastewater treatment
Abstract
The power generation potential of a microbial fuel cell (MFC) during the process of benzene biodegradation with potassium ferricyanide (0–200 mM) as the terminal electron acceptor was evaluated. Experimental results demonstrate that benzene was used as the sole carbon source in generating electricity by a mixed culture. The power density increased from 0.0276 to 2.1 mW m−2 as the concentration of potassium ferricyanide in the cathode chamber was increased from 0 to 200 mM. With a benzene concentration of 10.87 mg L−1 and a potassium ferricyanide concentration of between 0 and 150 mM, complete degradation of benzene was achieved in 22–24.5 h. However, when the concentration of potassium ferricyanide was raised to 200 mM, the time required for complete benzene degradation was prolonged to 35 h. The results of this investigation can be used as a basis for future assessments of the power generation capacity of MFCs that are used to treat benzene-contaminated wastewater.