TY - JOUR
T1 - Shipboard bilge water treatment by electrocoagulation powered by microbial fuel cells
AU - Mei, Xiaoxue
AU - Wang, Heming
AU - Hou, Dianxun
AU - Lobo, Fernanda Leite
AU - Xing, Defeng
AU - Ren, Zhiyong
PY - 2019/8/1
Y1 - 2019/8/1
N2 - 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.
AB - 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.
KW - Bilge water
KW - Electrocoagulation
KW - Microbial fuel cell
KW - Shipboard wastewater
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U2 - 10.1007/s11783-019-1134-3
DO - 10.1007/s11783-019-1134-3
M3 - Article
AN - SCOPUS:85065330245
VL - 13
JO - Frontiers of Environmental Science and Engineering
JF - Frontiers of Environmental Science and Engineering
SN - 2095-2201
IS - 4
M1 - 53
ER -