期刊
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
卷 2, 期 8, 页码 206-214出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.estlett.5b00180
关键词
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资金
- Strategic Environmental Research and Development Program (SERDP)
- King Abdullah University of Science and Technology (KAUST) [OSR-2015-SEED-2450-01]
- Center Competitive Funding Program award from KAUST [FCC/1/1971-05-01]
Different microbial electrochemical technologies are being developed for many diverse applications, including wastewater treatment, biofuel production, water desalination, remote power sources, and biosensors. Current and energy densities will always be limited relative to batteries and chemical fuel cells, but these technologies have other advantages based on the self-sustaining nature of the microorganisms that can donate or accept electrons from an electrode, the range of fuels that can be used, and versatility in the chemicals that can be produced. The high cost of membranes will likely limit applications of microbial electrochemical technologies that might require a membrane. For microbial fuel cells, which do not need a membrane, questions about whether larger-scale systems can produce power densities similar to those obtained in laboratory-scale systems remain. It is shown here that configuration and fuel (pure chemicals in laboratory media vs actual wastewaters) remain the key factors in power production, rather than the scale of the application. Systems must be scaled up through careful consideration of electrode spacing and packing per unit volume of the reactor.
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