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题名: Effect of electrode position on azo dye removal in an up-flow hybrid anaerobic digestion reactor with built-in bioelectrochemical system
作者: Cui, Min-Hua; Cui, Dan; Lee, Hyung-Sool; Liang, Bin; Wang, Ai-Jie; Cheng, Hao-Yi
刊名: SCIENTIFIC REPORTS
出版日期: 2016-04-28
卷号: 6, 页码:-
DOI: 10.1038/srep25223
部门归属: 中国科学院环境生物技术重点实验室
英文摘要: In this study, two modes of hybrid anaerobic digestion (AD) bioreactor with built-in BESs (electrodes installed in liquid phase (R1) and sludge phase (R2)) were tested for identifying the effect of electrodes position on azo dye wastewater treatment. Alizarin yellow R (AYR) was used as a model dye. Decolorization efficiency of R1 was 90.41 +/- 6.20% at influent loading rate of 800 g-AYR/ m(3).d, which was 39% higher than that of R2. The contribution of bioelectrochemical reduction to AYR decolorization (16.23 +/- 1.86% for R1 versus 22.24 +/- 2.14% for R2) implied that although azo dye was mainly removed in sludge zone, BES further improved the effluent quality, especially for R1 where electrodes were installed in liquid phase. The microbial communities in the electrode biofilms (dominant by Enterobacter) and sludge (dominant by Enterococcus) were well distinguished in R1, but they were similar in R2. These results suggest that electrodes installed in liquid phase in the anaerobic hybrid system are more efficient than that in sludge phase for azo dye removal, which give great inspirations for the application of AD-BES hybrid process for various refractory wastewaters treatment.
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/311016/36118
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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