Journal
BIORESOURCE TECHNOLOGY
Volume 185, Issue -, Pages 426-430Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.02.108
Keywords
Carbon filtration membrane; Microbial fuel cell; Advanced wastewater treatment; Energy recovery
Funding
- Key Program of the National Natural Science Foundation of China [51238004]
- International Program of MOST [2013DFG92240]
- Tsinghua University Initiative Scientific Research Program [20121087922]
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A homogeneous carbon membrane with multi-functions of microfiltration, electron conduction, and oxygen reduction catalysis was fabricated without using noble metals. The produced carbon membrane has a pore size of 553 nm, a resistance of 6.0 +/- 0.4 X cm(2)/cm, and a specific surface area of 32.2 m(2)/g. After it was assembled in microbial fuel cell (MFC) as filtration air cathode, a power density of 581.5 mW/m(2) and a current density of 1671.4 mA/m(2) were achieved, comparable with previous Pt air cathode MFCs. The filtration MFC was continuously operated for 20 days and excellent wastewater treatment performance was also achieved with removal efficiencies of TOC (93.6%), NH4+-N (97.2%), and total nitrogen (91.6%). In addition, the carbon membrane was much cheaper than traditional microfiltration membrane, suggesting a promising multi-functional material in wastewater treatment field. (C) 2015 Elsevier Ltd. All rights reserved.
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