Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-10-01

Journal: BIORESOURCE TECHNOLOGY

Included Journals: PubMed、EI、SCIE、Scopus

Volume: 102

Issue: 19

Page Number: 8762-8768

ISSN: 0960-8524

Key Words: Microbial fuel cell; Pentachlorophenol; Co-metabolism; Acetate; Glucose

Abstract: 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.