期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 244, 期 -, 页码 743-749出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2012.11.002
关键词
4-Chlorophenol; Phenol; Dechlorination; Bioelectrochemical system
资金
- National Natural Science Foundation of China [51179033]
- China Postdoctoral Science Foundation [20100480975, 201104413]
- Heilongjiang Postdoctoral Science Foundation
Bioelectrochemical systems (BESs), such as microbial fuel cells (MFCs) and microbial electrolysis cells (MECs), are generally regarded as a promising key technology to effectively treat wastewater and better exploit the renewable resource. This study explored the use of a BES to abiotically cathodic dechlorination of aromatic chlorides such as 4-chlorophenol, where the process was driven by microbial oxidation of glucose at the anode. It was confirmed that the 4-CP reduction process was feasible in BES and the dechlorination efficiency of 4-CP could achieve 50.3% at the cathode with energy generation. The 4-CP dechlorination efficiency was significantly enhanced when the BES was supplied with voltages, reaching up to 92.5% at an energy consumption of 0.549 kWh mol(-1) 4-CP (at applied voltage of 0.7 V). Besides, phenol was identified as the major product of 4-CP dechlorination at the cathode of BES in this study, which was the same as electrochemical reduction. (C) 2012 Elsevier B.V. All rights reserved.
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