期刊
BIORESOURCE TECHNOLOGY
卷 244, 期 -, 页码 1178-1182出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.08.026
关键词
Radial oxygen loss; Constructed wetland-microbial fuel cell; Intermittent aeration; Cathode reaction; Microbial fuel cell
资金
- Science and Engineering Research Board, Government of India [SR/FTP/ETA-0058/2011]
- Tasmanian Community Fund [31Medium00171]
The present study explores low-cost cathode development possibility using radial oxygen loss (ROL) of Canna indica plants and intermittent aeration (IA) for wastewater treatment and electricity generation in constructed wetland-microbial fuel cell (CW-MFC) system. Two CW-MFC microcosms were developed. Amongst them, one microcosm was planted with Canna indica plants for evaluating the ROL dependent cathode reaction (CW-MFC dependent on ROL) and another microcosm was equipped with intermittent aeration for evaluating the intermittent aeration dependent cathode reaction (CW-MFC with additional IA). The CW-MFC with additional IA has achieved 78.71% and 53.23%, and CW-MFC dependent on ROL has achieved 72.17% and 46.77% COD removal from synthetic wastewater containing glucose loads of 0.7 g L-1 and 2.0 g L-1, respectively. The maximum power density of 31.04 mW m(-3) and 19.60 mW m(-3) was achieved in CW-MFC with additional IA and CW-MFC dependent on ROL, respectively.
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