A comparison of air and hydrogen peroxide oxygenated microbial fuel cell reactors

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DOIResolve DOI: http://doi.org/10.1021/bp050225j
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TypeArticle
Journal titleBiotechnology Progress
ISSN8756-7938
Volume22
Issue1
Pages241246; # of pages: 6
SubjectBioelectric Energy Sources; Bioreactors; Electrodes; Hydrogen Peroxide; Oxygen
AbstractIn this study, a two-compartment continuous flow microbial fuel cell (MFC) reactor was used to compare the efficiencies of cathode oxygenation by air and by hydrogen peroxide. The MFC reactor had neither a proton-selective membrane nor an electron transfer mediator. At startup, the cathodic compartment was continuously aerated and the anodic compartment was fed with a glucose solution. An increase of electrical power generation from 0.008 to 7.2 mW m−2 of anode surface with a steady-state potential of 215–225 mV was observed within a period of 12 days. The performance of the air-oxygenated MFC reactor progressively declined over time because of biofilm proliferation in the cathodic compartment. Oxygenation of the cathodic compartment using 300 mL d−1 of 0.3% hydrogen peroxide solution resulted in a power density of up to 22 mW m−2 (68.2 mA m−2) of anode surface at a potential of 340–350 mV. The use of H2O2 for oxygenation was found to improve the long-term stability of the MFC reactor.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Biotechnology Research Institute
Peer reviewedYes
Identifier10370365
NPARC number12327670
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Record identifiere9392a27-acf6-4e0c-a5af-46accddb2408
Record created2009-09-10
Record modified2017-04-19
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