Enhanced performance and microbial community analysis of bioelectrochemical system integrated with bio-contact oxidation reactor for treatment of wastewater containing azo dye

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Enhanced performance and microbial community analysis of bioelectrochemical system integrated with bio-contact oxidation reactor for treatment of wastewater containing azo dye
	Wang, Youzhao; Pan, Yuan; Zhu, Tong; Wang, Aijie; Lu, Yalun; Lv, Liting; Zhang, Kuo; Li, Zijun
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018-09-01
卷号	634 页码:616-627
关键词	Bioelectrochemical systems Bio-contact oxidation Azo dye removal Response surface methodology Microbial community structure
ISSN号	0048-9697
文献子类	Article
英文摘要	Feasibility and superiority of the bioelectrochemical system integrated with biocontact oxidation (BES-BCO) for degradation and/or mineralization of azo dyes have been confirmed. In this study, the effects of hydraulic retention time (HRT), applied voltage, and dissolved oxygen (DO) concentration at the bioanode on the performance of BES-BCO and traditional BES were investigated. Using the response surface methodology, the optimum values of HRT, applied voltage, and DO concentration at the bioanode of BES-BCO were investigated to obtain the maximum decolouration and COD removal efficiency and minimum specific energy consumption (SEC). The microbial community structure in BES-BCO was studied for analyzing the change following the introduction of oxygen. The optimised solution was an applied voltage of 0.59 V, HRT of 12 h, and DO concentration of 0.96 mg/L at the bioanode. Under such conditions, the DE, COD removal efficiency, and SEC values were 94.62 +/- 0.63%, 89.12 +/- 0.32%, and 687.57 +/- 3.86 J/g, respectively. In addition, after changing from BES to BES-BCO, the bacterial community structure of the bioanode underwent significant changes. Several aerobic aniline-degrading bacteria and anode-respiration bacteria (ARB) were found to dominate the community of the anode biofilm. The results showed that the removal of azo dye degradation by-products was closely correlated with the o-bioanode and the BCO bacterial community structure. (C) 2018 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41256]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	Wang, Youzhao,Pan, Yuan,Zhu, Tong,et al. Enhanced performance and microbial community analysis of bioelectrochemical system integrated with bio-contact oxidation reactor for treatment of wastewater containing azo dye[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,634:616-627.
APA	Wang, Youzhao.,Pan, Yuan.,Zhu, Tong.,Wang, Aijie.,Lu, Yalun.,...&Li, Zijun.(2018).Enhanced performance and microbial community analysis of bioelectrochemical system integrated with bio-contact oxidation reactor for treatment of wastewater containing azo dye.SCIENCE OF THE TOTAL ENVIRONMENT,634,616-627.
MLA	Wang, Youzhao,et al."Enhanced performance and microbial community analysis of bioelectrochemical system integrated with bio-contact oxidation reactor for treatment of wastewater containing azo dye".SCIENCE OF THE TOTAL ENVIRONMENT 634(2018):616-627.