title: Microbial community structure of different electrode materials in constructed wetland incorporating microbial fuel cell.
abstract: The microbial fuel cell coupled with constructed wetland (CW-MFC) microcosms were operated under fed-batch mode for evaluating the effect of electrode materials on bioelectricity generation and microbial community composition. Experimental results indicated that the bioenergy output in CW-MFC increased with the substrate concentration; maximum average voltage (177mV) was observed in CW-MFC with carbon fiber felt (CFF). In addition, the four different materials resulted in the formation of significantly different microbial community distribution around the anode electrode. The relative abundance of Proteobacteria in CFF and foamed nickel (FN) was significantly higher than that in stainless steel mesh (SSM) and graphite rod (GR) samples. Notably, the findings indicate that CW-MFC utilizing FN anode electrode could apparently improve relative abundance of Dechloromonas, which has been regarded as a denitrifying and phosphate accumulating microorganism.
authors.affiliation: College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China.
authors.forename: Junfeng
authors.initials: J
authors.lastname: Wang
authors.affiliation: College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China. Electronic address: newmountain@dhu.edu.cn.
authors.forename: Xinshan
authors.initials: X
authors.lastname: Song
authors.affiliation: College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China.
authors.forename: Yuhui
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China.
authors.forename: Befkadu
authors.initials: B
authors.lastname: Abayneh
authors.affiliation: College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Ding
authors.affiliation: Department of Water Resources, China Institute of Water Resource and Hydropower Research, Beijing 100038, China.
authors.forename: Denghua
authors.initials: D
authors.lastname: Yan
authors.affiliation: School of Environment, Beijing Normal University, Beijing 100038, China.
authors.forename: Junhong
authors.initials: J
authors.lastname: Bai
mesh_terms: D001674:Bioelectric Energy Sources / Q000382:microbiology*; D002244:Carbon; D000077482:Carbon Fiber; D058440:Denitrification; D004566:Electrodes; D006108:Graphite; D059013:Microbial Consortia / Q000502:physiology*; D009532:Nickel; D020560:Proteobacteria / Q000378:metabolism; D013232:Steel; D053833:Wetlands
chemical_list: D000077482:Carbon Fiber; D013232:Steel; D002244:Carbon; D006108:Graphite; D009532:Nickel
keywords: Constructed wetland; Electrochemically active bacteria; Electrode material; Microbial community composition; Microbial fuel cell