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

Liping Huang, Linlin Gan, Qingliang Zhao, Bruce E. Logan, Hong Lu, Guohua Chen

Research output: Contribution to journalArticle

39 Scopus citations

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 of 15. 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.

Original languageEnglish (US)
Pages (from-to)8762-8768
Number of pages7
JournalBioresource technology
Volume102
Issue number19
DOIs
StatePublished - Oct 2011

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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