Trivalent arsenic can be oxidized to pentavalent arsenic in the anode of microbial fuel cell.This technology has the advantages of low cost,high efficiency,and no secondary pollution,and is expected to become a new method for treating trivalent arsenic contaminated wastewater.In this article,the mechanism of treating arsenic wastewater with microbial fuel cells was introduced,the synergistic effects of electrochemistry and microorganisms in the treatment of arsenic wastewater was analyzed,and possible ways to improve the efficiency and practical application of microbial fuel cells in treating arsenic wastewater were proposed.
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