Enhanced azo dye decolorization and microbial community analysis in a stacked bioelectrochemical system

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 azo dye decolorization and microbial community analysis in a stacked bioelectrochemical system
	Kong, Fanying; Ren, Hong-Yu; Pavlostathis, Spyros G.; Wang, Aijie; Nan, Jun; Ren, Nan-Qi
刊名	CHEMICAL ENGINEERING JOURNAL
	2018-12-15
卷号	354 页码:351-362
关键词	Stacked bioelectrochemical system (BES) Module Decolorization Azo dye Microbial community
ISSN号	1385-8947
文献子类	Article
英文摘要	In this study, a novel, single-chamber bioelectrochemical system (BES) with stacked modules was developed to improve azo dye decolorization. The decolorization extent of BES with three modules (80.3 +/- 3.1%) was about 15% and 33% higher than that with two modules (65.6 +/- 4.5%) and one module (47.1 +/- 3.9%) at an influent Acid Orange 7 (AO7) loading rate of 250 gm(-3) d(-1), demonstrating the feasibility of enhanced decolorization in scale-up BES through increasing the number of stacked modules. Moreover, the contribution of each module to dye decolorization, chemical oxygen demand (COD) removal and volatile fatty acids (VFAs) changes, showed the sequential utilization of pollutants in the stacked BES. Furthermore, analysis of the microbial communities showed that Pseudomonas, Geobacter, Comamonas, Meniscus, Bellilinea, Achromobacter, and Paludibacter were significantly enriched and resulted in the specific microbial community structures of the biocathode, meanwhile Geobacter and Acinetobacter were enriched in the microbial community of the bioanode, which mainly contributed to the electron transfer and/or azo dye decolorization. The results of this study demonstrate the potential of stacked BES for the accelerated deployment of large-scale BES applications for the treatment of refractory waste streams such as azo dye-bearing wastewater.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41253]
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	Kong, Fanying,Ren, Hong-Yu,Pavlostathis, Spyros G.,et al. Enhanced azo dye decolorization and microbial community analysis in a stacked bioelectrochemical system[J]. CHEMICAL ENGINEERING JOURNAL,2018,354:351-362.
APA	Kong, Fanying,Ren, Hong-Yu,Pavlostathis, Spyros G.,Wang, Aijie,Nan, Jun,&Ren, Nan-Qi.(2018).Enhanced azo dye decolorization and microbial community analysis in a stacked bioelectrochemical system.CHEMICAL ENGINEERING JOURNAL,354,351-362.
MLA	Kong, Fanying,et al."Enhanced azo dye decolorization and microbial community analysis in a stacked bioelectrochemical system".CHEMICAL ENGINEERING JOURNAL 354(2018):351-362.