ISSN: 2155-952X
Journal of Biotechnology & Biomaterials
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In Association with
The analysis of exoelectrogenic microorganisms in single chamber microbial fuel cells in different substrate
8th Euro Biotechnology Congress
Yujiao Sun, Lei Wang, Huichun Zhang and Sidan Lu
Beijing Normal University, China
Posters-Accepted Abstracts: Biotechnol Biomater
DOI:
Abstract
An innovative energy-generating device, Microbial Fuel Cells (MFCs) can utilize special microorganisms to oxidize organics in waste water while simultaneously generating electricity. Single-chamber Microbial Fuel Cells (MFCs) inoculated with anaerobic sludge and continuously run with organic waste water influents were systemically investigated. One anode was in a closed circuit in synthetic waste water containing glucose. The other two anodes were fed effluent from an anaerobic reactor treating starch waste water. The Chemical Oxygen Demand (COD) removal efficiency was about 70% and the exported voltages were about 450 mV. The 16S rDNA molecular clones of microbes on anode surfaces showed significant changes in eubacterial structure under different conditions. Proteobacteria and the high G+C gram-positive groups were predominant in the synthetic waste water while Proteobacteria predominated in the anaerobic reactor effluent. Known exoelectrogenic bacterial species composition such as Aeromonas, Pseudomonas, Geobacter and Desulfobulbus also changed greatly depending on substrate.Biography
Email: sunyujiao@bnu.edu.cn
