| Mutual effect between electrochemically active bacteria (EAB) and azo dye in bio-electrochemical system (BES) | |
Cui, Dan; Cui, Min-Hua; Liang, Bin; Liu, Wen-Zong ; Tang, Zi-En; Wang, Ai-Jie
| |
| 2020-01 | |
| Source Publication | CHEMOSPHERE
 |
| ISSN | 0045-6535 |
| Volume | 239Pages:1-23 |
| Abstract | Herein, the mutual effect between azo dye and the performance of electrochemically active bacteria (EAB) is investigated in detail, which is crucial to understand and control the bio-electrochemical systems (BESs) operation for azo dye containing wastewater treatment. EAB is enriched at controlled potential of -0.2 V vs Ag/AgCl in single-chamber BESs. Over 95% azo dye (alizarin yellow R (AYR)) was decolorized regardless of the initial AYR concentration ranging from 30 to 120 mg/L within 24 h. The fastest decolorization rate was obtained at AYR initial concentration of 70 mg/L, which was 4.25 times greater in the closed circuit BESs than that in the open circuit one. 16S rRNA gene based microbial community analysis showed that Geobacter was dominant in EAB with relative abundance increased from 77.98% (0 mg/L AYR) to 92.22% (70 mg/L AYR), indicating that azo dye selectively boosts the growth of exoelectrogens in electrode biofilm communities. Under electricity stimulation, extracellular process can be mutually conducted by azo dye compounds, which is favorable for accelerating reaction rate and avoiding of significant toxic effect on EAB. (C) 2019 Elsevier Ltd. All rights reserved. |
| Department | 中国科学院环境生物技术重点实验室 |
| Keyword | Electrochemically active bacteria (EAB) Azo dye Bio-electrochemical systems (BESs) Wastewater |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/45188 |
| Collection | 中国科学院环境生物技术重点实验室 |
| Recommended Citation GB/T 7714 | Cui, Dan,Cui, Min-Hua,Liang, Bin,et al. Mutual effect between electrochemically active bacteria (EAB) and azo dye in bio-electrochemical system (BES)[J]. CHEMOSPHERE,2020,239:1-23. |
| APA | Cui, Dan,Cui, Min-Hua,Liang, Bin,Liu, Wen-Zong,Tang, Zi-En,&Wang, Ai-Jie.(2020).Mutual effect between electrochemically active bacteria (EAB) and azo dye in bio-electrochemical system (BES).CHEMOSPHERE,239,1-23. |
| MLA | Cui, Dan,et al."Mutual effect between electrochemically active bacteria (EAB) and azo dye in bio-electrochemical system (BES)".CHEMOSPHERE 239(2020):1-23. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Mutual effect betwee（1795KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment