Effect of hydrogen producing mixed culture on performance of microbial fuel cells

Title
Effect of hydrogen producing mixed culture on performance of microbial fuel cells
Author(s)
안영호최정동
Keywords
WASTE-WATER TREATMENT; ELECTRICITY-GENERATION; CLOSTRIDIUM-BUTYRICUM; ELECTRON-TRANSFER; CATHODE; ANODE; BIOELECTRICITY; EFFICIENCIES; CELLULOSE; BIOFILMS
Issue Date
201406
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.39, no.17, pp.9482 - 9489
Abstract
This study examined the influence of H-2-producing mixed cultures on improving power generation using air-cathode microbial fuel cells (MFCs) inoculated with heat-treated anaerobic sludge. The MFCs installed with graphite brush anode generated higher power than the MFCs with carbon cloth anode, regardless heat treatment of anaerobic sludge. When the graphite brush anode-MFCs were inoculated selectively with H-2-producing bacteria by heat treatment, power production was not improved (about 490 mW/m(2)) in batch mode operation, but for slightly increased in carbon cloth anode-MFCs (from 0.16 to 2.0 mW/m(2)). Although H+/H-2 produced from H-2-producing bacteria can contribute to the performance of MFCs, suspended biomass did not affect the power density or potential, but the Coulombic efficiency (CE) increased. A batch test shows that propionate and acetate were used effectively for electricity generation, whereas butyrate made a minor contribution. H-2-producing mixed cultures do not affect the improvement in power generation and seed sludge, regardless of the pretreatment, can be used directly for the MFC performance. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/32008http://dx.doi.org/10.1016/j.ijhydene.2014.03.210
ISSN
0360-3199
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공과대학 > 건설시스템공학과 > Articles
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