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题名: Cathodic bacterial community structure applying the different co-substrates for reductive decolorization of Alizarin Yellow R
作者: Sun, Qian; Li, Zhi-Ling; Wang, You-Zhao; Yang, Chun-Xue; Chung, Jong Shik; Wang, Ai-Jie
刊名: BIORESOURCE TECHNOLOGY
出版日期: 2016-05
卷号: 208, 页码:64-72
关键词: Biocathode ; Bioelectrochemcial system (BES) ; Reductive decolorization ; Alizarin Yellow R (AYR) ; Bacterial community structure
DOI: 10.1016/j.biortech.2016.02.003
部门归属: 中国科学院环境生物技术重点实验室
英文摘要: Selective enrichment of cathodic bacterial community was investigated during reductive decolorization of AYR fedding with glucose or acetate as co-substrates in biocathode. A clear distinction of phylotype structures were observed between glucose-fed and acetate-fed biocathodes. In glucose-fed biocathode, Citrobacter (29.2%), Enterococcus (14.7%) and Alkaliflexus (9.2%) were predominant, and while, in acetate-fed biocathode, Acinetobacter (17.8%) and Achromobacter (6.4%) were dominant. Some electroactive or reductive decolorization genera, like Pseudomonas, Delftia and Dechloromonas were commonly enriched. Both of the higher AYR decolorization rate (k(AYR) = 0.46) and p-phenylenediamine (PPD) generation rate (k(PPD) = 0.38) were obtained fed with glucose than acetate (k(AYR) = 0.18; k(PPD) = 0.16). The electrochemical behavior analysis represented a total resistance in glucose-fed condition was about 73.2% lower than acetate-fed condition. The different co-substrate types, resulted in alteration of structure, richness and composition of bacterial communities, which significantly impacted the performances and electrochemical behaviors during reductive decolorization of azo dyes in biocathode. (C) 2016 Elsevier Ltd. All rights reserved.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36106
Appears in Collections:中国科学院环境生物技术重点实验室_期刊论文

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