Shipboard bilge water treatment by electrocoagulation powered by microbial fuel cells

Xiaoxue Mei; Heming Wang; Dianxun Hou; Fernanda Leite Lobo; Defeng Xing; Zhiyong Ren

doi:10.1007/s11783-019-1134-3

Shipboard bilge water treatment by electrocoagulation powered by microbial fuel cells

Xiaoxue Mei, Heming Wang, Dianxun Hou, Fernanda Leite Lobo, Defeng Xing, Zhiyong Ren

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

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.

Original language	English (US)
Article number	53
Journal	Frontiers of Environmental Science and Engineering
Volume	13
Issue number	4
DOIs	https://doi.org/10.1007/s11783-019-1134-3
State	Published - Aug 1 2019

All Science Journal Classification (ASJC) codes

Environmental Science(all)

Keywords

Bilge water
Electrocoagulation
Microbial fuel cell
Shipboard wastewater

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10.1007/s11783-019-1134-3

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title = "Shipboard bilge water treatment by electrocoagulation powered by microbial fuel cells",

abstract = "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.",

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author = "Xiaoxue Mei and Heming Wang and Dianxun Hou and Lobo, {Fernanda Leite} and Defeng Xing and Zhiyong Ren",

note = "Funding Information: Acknowledgements We appreciate the financial support from the Office of Naval Research (N000141612210). The authors also thank to HTI for supplying membrane samples and Mr. Cole Sigmon from Boulder WWTP for providing sludge samples. The State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology, QAK201603) also provided support. Publisher Copyright: {\textcopyright} 2019, Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",

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doi = "10.1007/s11783-019-1134-3",

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AU - Mei, Xiaoxue

AU - Wang, Heming

AU - Hou, Dianxun

AU - Lobo, Fernanda Leite

AU - Xing, Defeng

AU - Ren, Zhiyong

N1 - Funding Information: Acknowledgements We appreciate the financial support from the Office of Naval Research (N000141612210). The authors also thank to HTI for supplying membrane samples and Mr. Cole Sigmon from Boulder WWTP for providing sludge samples. The State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology, QAK201603) also provided support. Publisher Copyright: © 2019, Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

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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Shipboard bilge water treatment by electrocoagulation powered by microbial fuel cells

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