期刊
BIORESOURCE TECHNOLOGY
卷 241, 期 -, 页码 1191-1196出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.06.050
关键词
Microbial fuel cell (MFC); Pseudomonas aeruginosa; Integrated aerobic-anaerobic strategy; Pyocyanin (PYO); Biofilm; Extracellular electron transfer
资金
- National Basic Research Program of China (973 Program) [2013CB733904, 2013CB733500]
- National Key Research and Development Program of China [2016YFE0112800]
- Natural Science Foundation of China [NSFC 21306069]
- National Key Technology Support Program of China [2014BAC33B00]
- Key Science and Technology Project of Jiangsu Province [BE2016389]
- Natural Science Foundation of Jiangsu Province [BK20160015]
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences
Microbial fuel cell (MFC) is a promising device for energy generation and organic waste treatment simultaneously by electrochemically active bacteria (EAB). In this study, an integrated aerobic-anaerobic strategy was developed to improve the performance of P. aeruginosa-inoculated MFC. With an aerobic start-up and following an anaerobic discharge process, the current density of MFC reached a maximum of 99.80 mu A/cm(2), which was 91.6% higher than the MFC with conventional constant-anaerobic operation. Cyclic voltammetry and HPLC analysis showed that aerobic start-up significantly increased electron shuttle (pyocyanin) production (76% higher than the constant-anaerobic MFC). Additionally, enhanced anode biofilm formation was also observed in the integrated aerobic-anaerobic MFC. The increased pyocyanin production and biofilm formation promoted extracellular electron transfer from EAB to the anode and were the underlying mechanism for the MFC performance enhancement. This work demonstrated the integrated aerobic-anaerobic strategy would be a practical strategy to enhance the electricity generation of MFC. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据