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Citation
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HERO ID
8302502
Reference Type
Journal Article
Title
Electricity generation and microbial community in a submerged-exchangeable microbial fuel cell system for low-strength domestic wastewater treatment
Author(s)
Yu, J; Seon, J; Park, Y; Cho, S; Lee, T; ,
Year
2012
Is Peer Reviewed?
Yes
Journal
Bioresource Technology
ISSN:
0960-8524
EISSN:
1873-2976
Publisher
ELSEVIER SCI LTD
Location
OXFORD
Page Numbers
172-179
Language
English
PMID
22613893
DOI
10.1016/j.biortech.2012.04.078
Web of Science Id
WOS:000306208900024
URL
https://linkinghub.elsevier.com/retrieve/pii/S096085241200702X
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Abstract
A submerged type microbial fuel cell (MFC) system, which consisted of six readily exchangeable air-cathode MFCs, was evaluated for continuous treatment of low-strength domestic wastewater. When supplied with synthetic wastewater (COD 100 mg/L), the system showed increasing maximum power densities from 191 to 754 mW/m2 as COD loading rates increased (0.20-0.40 kg/m3/day). COD removal efficiencies decreased with increased COD loading rates but the effluent COD concentrations met the relevant effluent quality standard (CODMn 20 mg/L) at all conditions. The system was then operated with domestic wastewater (c.a. 100 mg COD/L) at 0.32 and 0.43 kg/m3/day. The system showed much lower power densities (116-149 mW/m2) at both loading rates, compared to synthetic wastewater. Anodic microbial communities were completely different when the wastewater type was changed. These results suggest that the newly developed MFC system could be applied to treat low-strength domestic wastewater without requiring any additional organic removal stage.
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