期刊
BIORESOURCE TECHNOLOGY
卷 195, 期 -, 页码 210-216出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.06.062
关键词
Air-cathode microbial fuel cell; Algae bioreactor; Cell voltage; Cathode potential; Oxygen supply
资金
- National Research Foundation of Korea [2012R1A1A2042031]
- Brain Korea 21 Plus [20140260]
- National Research Foundation of Korea [2012R1A1A2042031] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
An algae bioreactor (ABR) was externally connected to air-cathode microbial fuel cells (MFCs) to increase power generation by supplying a high amount of oxygen to cathode electrode. The MFC with oxygen fed from ABR produced maximum cell voltage and cathode potential at a fixed loading of 459 mV and 10 mV, respectively. During polarization analysis, the MFC displayed a maximum power density of 0.63 W/m(2) (at 2.06 A/m(2)) using 39.2% O-2 from ABR, which was approximately 30% higher compared with use of atmospheric air (0.44 W/m2, 20.8% O-2,). The cyclic voltammogram analysis exhibited a higher reduction current of -137 mA with 46.5% O-2 compared to atmospheric air (-115 mA). Oxygen supply by algae bioreactor to air-cathode MFC could also maintain better MFC performance in long term operation by minimizing cathode potential drop over time. (C) 2015 Elsevier Ltd. All rights reserved.
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