A system combining microbial fuel cell with photobioreactor for continuous domestic wastewater treatment and bioelectricity generation

来源期刊:中南大学学报(英文版)2013年第2期

论文作者:蒋海明 罗生军 师晓爽 戴萌 Guo Rong-bo(郭荣波)

文章页码:488 - 494

Key words:wastewater treatment; microbial fuel cell; photobioreactor; microalgae; bioelectricity

Abstract: a coupled system consisting of an upflow membrane-less microbial fuel cell (upflow ML-MFC) and a photobioreactor was developed, and its effectiveness for continuous wastewater treatment and electricity production was evaluated. Wastewater was fed to the upflow ML-MFC to remove chemical oxygen demand (COD), phosphorus and nitrogen with simultaneous electricity generation. The effluent from the cathode compartment of the upflow ML-MFC was then continuously fed to an external photobioreactor for removing the remaining phosphorus and nitrogen using microalgae. Alone, the upflow ML-MFC produces a maximum power density of 481 mW/m3, and obtains 77.9% COD, 23.5% total phosphorus (TP) and 97.6% NH4+-N removals. When combined with the photobioreactor, the system achieves 99.3% TP and 99.0% NH4+-N total removal. These results show both the effectiveness and the potential application of the coupled system to continuously treat domestic wastewater and simultaneously generate electricity and biomass.

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