Journal
BIOPROCESS AND BIOSYSTEMS ENGINEERING
Volume 37, Issue 12, Pages 2453-2461Publisher
SPRINGER
DOI: 10.1007/s00449-014-1223-4
Keywords
Microbial fuel cell; Algae; Carbon paper; Carbon fiber brush; Dissolved oxygen
Funding
- Kyung Hee University [20110479]
- National Research Foundation of Korea [22A20130011020] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Microbial fuel cell (MFC) and its cathode performances were compared with use of carbon fiber brush and plain carbon paper cathode electrodes in algae aeration. The MFC having carbon fiber brush cathode exhibited a voltage of 0.21 +/- A 0.01 V (1,000 abroken vertical bar) with a cathode potential of around -0.14 +/- A 0.01 V in algal aeration, whereas MFC with plain carbon paper cathode resulted in a voltage of 0.06 +/- A 0.005 V with a cathode potential of -0.39 +/- A 0.01 V. During polarizations, MFC equipped with carbon fiber brush cathode showed a maximum power density of 30 mW/m(2), whereas the MFC equipped with plain carbon paper showed a power density of 4.6 mW/m(2). In algae aeration, the internal resistance with carbon fiber brush cathode was 804 abroken vertical bar and with plain carbon paper it was 1,210 abroken vertical bar. The peak currents of MFC operation with carbon fiber brush and plain carbon paper cathodes were -31 mA and -850 A mu A, respectively.
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