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Shipboard bilge water treatment by electrocoagulation powered by microbial fuel cells

查看全文 作　　者：Xiaoxue [1,4]Mei;Heming [2,3]Wang;Dianxun [2]Hou;Fernanda Leite [2]Lobo;Defeng [4]Xing;Zhiyong Jason [1,2]Ren 高影响力作者 机构地区：[1]Department of Civil and Environmental Engineering,Princeton University,Princeton,NJ 08544,USA;[2]Department of Civil,Environmental,and Architectural Engineering,University of Colorado Boulder,Boulder,CO 80303,USA;[3]Department of Civil and Environmental Engineering,China University of Petroleum,Beijing 102249,China;[4]State Key Laboratory of Urban Water Resource and Environment,School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China高影响力机构 出　　处：《Frontiers of Environmental Science & Engineering》索引2019年第13卷第4期,共7页高影响力期刊 摘　　要：Ships generate large amounts of wastewater including oily bilge water, blackwater and greywater. Traditionally they are treated separately with high energy consumption. In this study we demonstrate the feasibility that these waste streams can be treated using an integrated electrocoagulation cell (ECC) and microbial fuel cell (MFC) process, which not only synergized the contaminants removal but also accomplished energy neutrality by directly powering EC with MFC electricity. Results showed that MFC stack powered ECC removed 93% of oily organics, which is comparable to the performance of an external DC voltage powered ECC. In the meantime, more than 80% of COD was removed from MFCs when fed with either acetate or municipal wastewater. Moreover, the ECC electrode area and distance showed notable effects on current generation and contaminants removal, and further studies should focus on operation optimization to enhance treatment efficiency. 关 键 词：BILGE water ELECTROCOAGULATION MICROBIAL FUEL cell SHIPBOARD WASTEWATER
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