期刊
BIORESOURCE TECHNOLOGY
卷 179, 期 -, 页码 615-618出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.12.034
关键词
Bioremediation; Sediments; Microbial fuel cells; Power management system
资金
- National Science Foundation [51422803]
- National Natural Science Foundation [31200096]
- Natural Science Foundation of Guangdong [S2013010014596]
- Guangdong Innovative development of marine economy regional demonstration projects [GD2012-D01-002]
To test the long-term applicability of scaled-up sediment microbial fuel cells (SMFCs) in simultaneous bioremediation of toxic-contaminated sediments and power-supply for electronic devices, a 100 L SMFC inoculate with heavily contaminated sediments has been assembled and operated for over 2 years without external electron donor addition. The total organic chemical (TOC) degradation efficiency was 22.1% in the electricity generating SMFCs, which is significantly higher than that in the open-circuited SMFC (3.8%). The organic matters including contaminants in the contaminated sediments were sufficient for the electricity generation of SMFCs, even up to 8.5 years by the present SMFC theoretically. By using a power management system (PMS), the SMFC electricity could be harvested into batteries and used by commercial electronic devices. The results indicated that the SMFC-PMS system could be applied as a long-term and effective tool to simultaneously stimulate the bioremediation of the contaminated sediments and supply power for commercial devices. (C) 2014 Elsevier Ltd. All rights reserved.
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