Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/52827

Combined effects of enrichment procedure and non-fermentable or fermentable co-substrate on performance and bacterial community for pentachlorophenol degradation in microbial fuel cells

Authors Wang, Shanshan
Huang, Liping
Gan, Linlin
Quan, Xie
Li, Ning
Chen, Guohua View this author's profile
Lu, Lu
Xing, Defeng
Yang, Fenglin
Issue Date 2012
Source Bioresource technology , v. 120, September 2012, p. 120-126
Summary Combined effects of enrichment procedure and non-fermentable acetate or fermentable glucose on system performance and bacterial community for pentachlorophenol (PCP) degradation in microbial fuel cells (MFCs) were determined in this study. Co-substrate and PCP were added into MFCs either simultaneously or sequentially. Simultaneous addition with glucose (simultaneous-glucose) achieved the shortest acclimation time and the most endurance to heavy PCP shock loads. Species of Alphaproteobacteria (simultaneous-acetate, 33.9%; sequential-acetate, 31.3%), Gammaproteobacteria (simultaneous-glucose, 44.1%) and Firmicutes (sequential-glucose, 31.8%) dominated the complex systems. The genus Sedimentibacter was found to exist in all the cases whereas Spirochaetes were merely developed in simultaneous-acetate and simultaneous-glucose. While Epsilonproteobacteria were only absent from sequential-acetate, simultaneous-glucose benefited to the evolution of Lentisphaerae. These results demonstrate simultaneous-glucose is a strategy for efficient system performance and the microbiological evidence can contribute to improving understanding of and optimizing PCP degradation in MFCs. (C) 2012 Elsevier Ltd. All rights reserved.
Subjects
ISSN 0960-8524
Language English
Format Article
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