Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/34883

Degradation of pentachlorophenol with the presence of fermentable and non-fermentable co-substrates in a microbial fuel cell

Authors Huang, Liping
Gan, Linlin
Zhao, Qingliang
Logan, Bruce E.
Lu, Hong
Chen, Guohua View this author's profile
Issue Date 2011
Source Bioresource technology , v. 102, (19), October 2011, p. 8762-8768
Summary Pentachlorophenol (PCP) was more rapidly degraded in acetate and glucose-fed microbial fuel cells (MFCs) than in open circuit controls, with removal rates of 0.12 +/- 0.01 mg/L h (14.8 +/- 1.0 mg/g-VSS-h) in acetate-fed, and 0.08 +/- 0.01 mg/L h (6.9 +/- 0.8 mg/g-VSS-h) in glucose-fed MFCs, at an initial PCP concentration of 15 mg/L. A PCP oils mg/L had no effect on power generation from acetate but power production was decreased with glucose. Coulombic balances indicate the predominant product was electricity (16.1 +/- 0.3%) in PCP-acetate MFCs, and lactate (19.8 +/- 3.3%) in PCP-glucose MFCs. Current generation accelerated the removal of PCP and co-substrates, as well as the degradation products in both PCP-acetate and PCP-glucose reactors. While 2,3,4,5-tetrachlorophenol was present in both reactors, tetrachlorohydroquinone was only found in PCP-acetate MFCs. These results demonstrate PCP degradation and power production were affected by current generation and the type of electron donor provided. (C) 2011 Elsevier Ltd. All rights reserved.
Subjects
ISSN 0960-8524
Language English
Format Article
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