Abstract
The article deals with methods for elimination of nitrate ions in the cathode processes of biofuel cells. BFCs based on Micrococcus luteus (1-i) isolated from activated sludge of wastewater treatment facilities of Angarsk Petrochemical Plant (Angarsk, Russia) were more efficient under substitution of oxygen (the most typical acceptor of electrons in the BFC technology) with nitrate. During the 97-hour experiment, power values of the oxygen-based BFC reached 113 ± 49 uW, while for the nitrate-based BFC, the value was 450 ± 19 uW. Energy production was accompanied by nitrate reduction in the BFC catholyte.
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