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Power generation in fed-batch and continuous up-flow microbial fuel cell from synthetic wastewater

Author

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  • Lay, Chyi-How
  • Kokko, Marika E.
  • Puhakka, Jaakko A.

Abstract

Up-flow bioreactors have the advantages of retaining very high cell density and having high mass transfer efficiency. The recirculation rate could improve the up-flow rate in up-flow bioreactor. A two-chamber UFMFC (up-flow microbial fuel cell) is constructed with flat graphite electrodes and anion exchange membrane for electricity generation. The anode chamber is seeded with compost culture enriched on xylose and operated on synthetic wastewater with 0.5 g/L xylose, external resistance of 100 Ω, at pH 7.0 and 37 °C in fed-batch mode. The cathode chamber in the top of the UFMFC is filled with potassium ferricyanide (pH 7.0) as the electron acceptor. The effects of different recirculation rates of 1.2, 2.4, 4.8 and 7.2 RV (reactor-volumes)/h to increase the mass transfer and electricity production are determined in fed-batch mode. At a recirculation rate of 4.8 RV/h, a power density of 356 ± 24 mW/m2 with CE (coulombic efficiency) of 21.3 ± 1.0% is obtained. Decreasing HRT (hydraulic retention time) could improve the electricity production performance of UFMFC in continuous mode. The power generation is increased to 372 ± 20 mW/m2, while CE remains at 13.4 ± 0.5% with HRT of 1.7 d and optimum recirculation rate of 4.8 RV/h on continuous mode. Microbial communities were characterized with PCR (polymerase chain reaction) – DGGE (denaturing gradient gel electrophoresis). In the end of the experiment, the biofilm contained both fermenting and exoelectrogenic bacteria, while fermenting and nitrate-reducing bacteria were mainly present in the anodic solutions. Moreover, some changes occurred in the microbial communities of the anodic solutions when the MFCs were switched from fed-batch to continuous mode, while the differences were minor between different recirculation rates in fed-batch mode.

Suggested Citation

  • Lay, Chyi-How & Kokko, Marika E. & Puhakka, Jaakko A., 2015. "Power generation in fed-batch and continuous up-flow microbial fuel cell from synthetic wastewater," Energy, Elsevier, vol. 91(C), pages 235-241.
    • Handle: RePEc:eee:energy:v:91:y:2015:i:c:p:235-241
    DOI: 10.1016/j.energy.2015.08.029
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    Cited by:

    1. Ortiz-Martínez, V.M. & Salar-García, M.J. & Touati, K. & Hernández-Fernández, F.J. & de los Ríos, A.P. & Belhoucine, F. & Berrabbah, A. Alioua, 2016. "Assessment of spinel-type mixed valence Cu/Co and Ni/Co-based oxides for power production in single-chamber microbial fuel cells," Energy, Elsevier, vol. 113(C), pages 1241-1249.
    2. Hassan, Sedky H.A. & el Nasser A. Zohri, Abd & Kassim, Rehab M.F., 2019. "Electricity generation from sugarcane molasses using microbial fuel cell technologies," Energy, Elsevier, vol. 178(C), pages 538-543.
    3. Jaecheul Yu & Hana Park & Younghyun Park & Taeho Lee, 2022. "Power Generation and Microbial Community Shift According to Applied Anodic Potential in Electroactive Biofilm Reactors Treating Synthetic and Domestic Wastewater," Energies, MDPI, vol. 15(24), pages 1-12, December.
    4. Salar-García, M.J. & Ortiz-Martínez, V.M. & Baicha, Z. & de los Ríos, A.P. & Hernández-Fernández, F.J., 2016. "Scaled-up continuous up-flow microbial fuel cell based on novel embedded ionic liquid-type membrane-cathode assembly," Energy, Elsevier, vol. 101(C), pages 113-120.
    5. Shahid, Kanwal & Ramasamy, Deepika Lakshmi & Haapasaari, Sampo & Sillanpää, Mika & Pihlajamäki, Arto, 2021. "Stainless steel and carbon brushes as high-performance anodes for energy production and nutrient recovery using the microbial nutrient recovery system," Energy, Elsevier, vol. 233(C).
    6. Gao, Ningshengjie & Qu, Botong & Xing, Zhenyu & Ji, Xiulei & Zhang, Eugene & Liu, Hong, 2018. "Development of novel polyethylene air-cathode material for microbial fuel cells," Energy, Elsevier, vol. 155(C), pages 763-771.
    7. Wang, Yuyang & Chen, Ye & Wen, Qing & Zheng, Hongtao & Xu, Haitao & Qi, Lijuan, 2019. "Electricity generation, energy storage, and microbial-community analysis in microbial fuel cells with multilayer capacitive anodes," Energy, Elsevier, vol. 189(C).
    8. Tang, Raymond Chong Ong & Jang, Jer-Huan & Lan, Tzu-Hsuan & Wu, Jung-Chen & Yan, Wei-Mon & Sangeetha, Thangavel & Wang, Chin-Tsan & Ong, Hwai Chyuan & Ong, Zhi Chao, 2020. "Review on design factors of microbial fuel cells using Buckingham's Pi Theorem," Renewable and Sustainable Energy Reviews, Elsevier, vol. 130(C).
    9. Saba, Beenish & Christy, Ann D. & Yu, Zhongtang & Co, Anne C., 2017. "Sustainable power generation from bacterio-algal microbial fuel cells (MFCs): An overview," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 75-84.
    10. Khaya Pearlman Shabangu & Babatunde Femi Bakare & Joseph Kapuku Bwapwa, 2022. "Microbial Fuel Cells for Electrical Energy: Outlook on Scaling-Up and Application Possibilities towards South African Energy Grid," Sustainability, MDPI, vol. 14(21), pages 1-27, November.
    11. Ortiz-Martínez, V.M. & Salar-García, M.J. & Hernández-Fernández, F.J. & de los Ríos, A.P., 2015. "Development and characterization of a new embedded ionic liquid based membrane-cathode assembly for its application in single chamber microbial fuel cells," Energy, Elsevier, vol. 93(P2), pages 1748-1757.

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