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Preliminary Investigation of Generating Electricity from Wastewater via a Single-Compartment Microbial Fuel Cell
Technical Paper
2005-01-3112
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Energy-efficient and low temperature water treatment is desirable for long-term space missions. A Microbial Fuel Cell (MFC) is a hybrid between a fuel cell and a biological reactor that has a potential to make water treatment an energy-generating (not consuming) process. Microorganisms in a MFC biodegrade contaminants and exchange electrons with the fuel cell electrodes, generating electricity at ambient temperature. To test the feasibility of MFC as an energy-generating and water treatment process, we constructed a single-compartment MFC to generate electricity from acetate. Three MFC electrodes were connected to a potentiostat as follows: the working electrode was a graphite rod with 0.312″OD connected to a wire using silver epoxy; the reference electrode was a standard silver-silver chloride reference electrode; and the auxiliary electrode was a membrane electrode assembly consisting of Nafion-117 and VUIcan XC-72 with standard platinum loading of 0.5 mg/cm2. The reactor was inoculated with anaerobic digester sludge in a batch mode with the working electrode poised at +0.40 mV against the standard hydrogen electrode and with 120 mg COD/L of acetate. After 60 days, we obtained a stable current of about 1.06 mA with a current density of approximately 600 mA/cm2. A potential-step experiment showed that the current depended on the working electrode potential in a manner similar to how the Monod equation describes saturation for a dissolved electron acceptor.
Authors
Citation
Marcus, A., Lueptow, R., and Rittmann, B., "Preliminary Investigation of Generating Electricity from Wastewater via a Single-Compartment Microbial Fuel Cell," SAE Technical Paper 2005-01-3112, 2005, https://doi.org/10.4271/2005-01-3112.Also In
References
- Hanford, A. J. Advanced Life Support Baseline Values and Assumptions Document 2004 Lockheed Martin Space Operations
- Park, D. H. Zeikus, J. G. Improved fuel cell and electrode designs for producing electricity from microbial degradation Biotechnol Bioeng 2003 81 3 348 55
- Kim, H. J., et al. A mediator-less microbial fuel cell using a metal reducing bacterium, Shewanella putrefaciense Enzyme Microbiol Tech 2002 30 2 145 152
- Bond, D. R. Lovley, D. R. Electricity production by Geobacter sulfurreducens attached to electrodes. Appl Environ Microbiol 2003 69 3 1548 55
- Rabaey, K., et al. A microbial fuel cell capable of converting glucose to electricity at high rate and efficiency Biotechnol Lett 2003 25 18 1531 5
- Liu, H. Ramnarayanan, R. Logan, B. E. Production of electricity during wastewater treatment using a single chamber microbial fuel cell Environ Sci Technol 2004 38 7 2281 5
- Galushko, A. S. Schink, B. Oxidation of acetate through reactions of the citric acid cycle by Geobacter sulfurreducens in pure culture and in syntrophic coculture Arch Microbiol 2000 174 5 314 321
- Rittmann, B. E. McCarty, P. L. Environmental biotechnology : principles and applications McGraw-Hill series in water resources and environmental engineering 2001 Boston McGraw-Hill xiv 754