Electrochemical Oxidation of Ammonium ion coupled to Bioelectrochemical Dechlorination of Dichlorobenzoic Acid to Benzoic Acid by Anaerobic Consortium

Abstract

We developed a new catalytic electrode capable of oxidizing ammonium, which was used as an anode. Another functional electrode capable of reducing NAD+ to NADH was used as a cathode, which was modified with neutral red. The modified electrode with neutral red can mediate electron transfer from electrode to bacterial cells. Two functional electrodes were combined as an anode and cathode for electrochemical oxidation of ammonium ion and bioelectrochemical reduction of dichlorobenzoic acid, respectively. Ammonium ion was oxidized to nitrate on anode coupled to reduction of dichlorobenzoic acid to benzoic acid on cathode of two compartments electrochemical reactor.