Promoted bioelectrocatalytic activity of microbial electrolysis cell (MEC) in sulfate removal through the synergy between neutral red and graphite felt | |
Wang, Kai1,2; Cao, Zhiqin2,3; Chang, Junjun2,4; Sheng, Yuxing2; Cao, Hongbin2; Yan, Keping1; Zhang, Yi1,2; Xia, Zheng1 | |
2017-11-01 | |
Source Publication | CHEMICAL ENGINEERING JOURNAL
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ISSN | 1385-8947 |
Volume | 327Issue:NOVPages:183-192 |
Abstract | The recent thrust in utilizing microbial electrolysis cell (MEC) has led to accelerated attention in environmental decontamination. One key factor that governs this process is electron transfer efficiency. In this study, neutral red (NR) is involved as electron transfer mediator to investigate whether it could contribute to MEC performance. Afterwards, influence of electrode material selection on NR addition system was also studied. The results indicate MEC with NR shows better electrochemistry activity, which means sulfate-reducing bacteria (SRB) can response to electron transfer mediator NR. Further study reveals graphite felt triggers a better synergy with NR to facilitate electron utilization efficiency of the system subsequently maintains bacteria metabolic activity for a longer time. Sulfate removal in this reactor reaches 79.0% with electron utilization efficiency of 54.2%. To explore the mechanism, electrode bioelectrochemical property, microorganism activity and community were investigated. Electrode morphology analysis confirms graphite felt affords abundant space for the growth of electroactive microorganisms especially SRB and promotes electron exchange through cooperating with NR, which fits in with electrochemical impedance spectroscopy (EIS) analysis. High-throughput sequencing analysis confirms improved reactor can fortify the population dominant of SRB in the community which greatly raises electron utilization efficiency of SRB. (C) 2017 Elsevier B.V. All rights reserved. |
Keyword | Microbial Electrolysis Cell Neutral Red Graphite Felt Electron Transfer Efficiency Sulfate Removal Microbial Activity And Community |
Subtype | Article |
WOS Headings | Science & Technology ; Technology |
DOI | 10.1016/j.cej.2017.06.086 |
Indexed By | SCI |
Language | 英语 |
WOS Keyword | WASTE-WATER TREATMENT ; CARBON-FIBER FELT ; FUEL-CELLS ; CATHODE ; BIOFILM ; REDUCTION ; SYSTEMS ; WASTEWATERS ; PERFORMANCE ; ELECTRODES |
WOS Research Area | Engineering |
WOS Subject | Engineering, Environmental ; Engineering, Chemical |
Funding Organization | National Natural Science Foundation of China(20877075) ; Open Funding Project of the National Key Laboratory of Biochemical Engineering ; National Key Technologies RD Program(2006BAC02A05) ; National Basic Research Program of China (973 Program)(2007CB613501) |
WOS ID | WOS:000408663800020 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ipe.ac.cn/handle/122111/23194 |
Collection | 湿法冶金清洁生产技术国家工程实验室 |
Affiliation | 1.Zhejiang Univ, Inst Ind Ecol & Environm, Coll Chem & Biol Engn, Hangzhou 310027, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Wang, Kai,Cao, Zhiqin,Chang, Junjun,et al. Promoted bioelectrocatalytic activity of microbial electrolysis cell (MEC) in sulfate removal through the synergy between neutral red and graphite felt[J]. CHEMICAL ENGINEERING JOURNAL,2017,327(NOV):183-192. |
APA | Wang, Kai.,Cao, Zhiqin.,Chang, Junjun.,Sheng, Yuxing.,Cao, Hongbin.,...&Xia, Zheng.(2017).Promoted bioelectrocatalytic activity of microbial electrolysis cell (MEC) in sulfate removal through the synergy between neutral red and graphite felt.CHEMICAL ENGINEERING JOURNAL,327(NOV),183-192. |
MLA | Wang, Kai,et al."Promoted bioelectrocatalytic activity of microbial electrolysis cell (MEC) in sulfate removal through the synergy between neutral red and graphite felt".CHEMICAL ENGINEERING JOURNAL 327.NOV(2017):183-192. |
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Promoted bioelectroc(3602KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text |
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