Evaluation of anaerobic sludge volume for improving azo dye decolorization in a hybrid anaerobic reactor with built-in bioelectrochemical system
文献类型：期刊论文
| 作者 | Cui, Dan; Cui, Min-Hua; Cheng, Hao-Yi; Wang, Ai-Jie; Gao, Lei |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 169期号:0页码:18-22 |
| 关键词 | Hybrid Reactor Bioelectrochemical System (Bes) Sludge Volume Azo Dye Domestic Wastewater |
| 英文摘要 | A hybrid anaerobic reactor with built-in bioelectrochemical system (BES) has been verified for efficiently treating mixed azo dye wastewater, yet still facing many challenges, such as uncertain reactor construction and insufficient electron donors. In this study, an up-flow hybrid anaerobic reactor with built-in BES was developed for acid orange 7 (AO7) containing wastewater treatment. Cathode and real domestic wastewater both served as electron donor for driving azo dye decolorization. The decolorization efficiency (DE) of A07 (200 mg/L) in the hybrid reactor was 80.34 +/- 2.11% with volume ratio between anaerobic sludge and cathode (VRslu:cat) of 0.5:1 and hydraulic retention time (HRT) of 6 h, which was 15.79% higher than that in BES without sludge zone. DE was improved to 86.02 +/- 1.49% with VRsiu:cat increased to 1:1. Further increase in the VRslu:cat to 1.5:1 and 2:1, chemical oxygen demand (COD) removal efficiency was continuously improved to 28.78 +/- 1.96 and 32.19 +/- 0.62%, but there was no obvious DE elevation (slightly increased to 87.62 +/- 2.50 and 90.13 +/- 3.10%). BES presented efficient electron utilization, the electron usage ratios (EURs) in which fluctuated between 11.02 and 13.06 mol e-/ mol A07. It was less than half of that in sludge zone of 24.73-32.06 mol e-/mol A07. The present work optimized the volume ratio between anaerobic sludge and cathode that would be meaningful for the practical application of this hybrid system. (C) 2016 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39632]  |
| 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 | Cui, Dan,Cui, Min-Hua,Cheng, Hao-Yi,et al. Evaluation of anaerobic sludge volume for improving azo dye decolorization in a hybrid anaerobic reactor with built-in bioelectrochemical system[J]. CHEMOSPHERE,2017,169(0):18-22. |
| APA | Cui, Dan,Cui, Min-Hua,Cheng, Hao-Yi,Wang, Ai-Jie,&Gao, Lei.(2017).Evaluation of anaerobic sludge volume for improving azo dye decolorization in a hybrid anaerobic reactor with built-in bioelectrochemical system.CHEMOSPHERE,169(0),18-22. |
| MLA | Cui, Dan,et al."Evaluation of anaerobic sludge volume for improving azo dye decolorization in a hybrid anaerobic reactor with built-in bioelectrochemical system".CHEMOSPHERE 169.0(2017):18-22. |
入库方式： OAI收割
来源：生态环境研究中心
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