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Lookup NU author(s): Dr Jan DolfingORCiD
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Organic carbon, nitrogen, and sulfur are highly concentrated in municipal solid waste (MSW) landfill leachate, which usually frustrates conventional leachate treatment technologies from the perspective of energy costs. Therefore, the possibility of converting leachate to a new energy source via microbial fuel cell (MFC) technology has been examined recently. This paper summarizes the power output and energy recovery efficiency of the leachate-fed MFCs according to different feeding patterns, cell structures, and loading rates. Also, we assess potential energy-generating chemicals in leachate like nitrogen and sulfur compounds and propose alternative pathways, which may lift strict ratios between organic carbon and nitrogen content in conventional denitrification of leachate and are expected to achieve a higher voltage than traditional organic-oxygen based cells. Although currently power output of leachate-fed MFCs is limited, it seems well possible that dynamic characteristics of MSW leachates and microbial physiologies underlying some bio-electrochemically efficient activities (e.g., direct interspecies electron transfer) could be stimulated in MFC systems to improve the present status
Author(s): Wu D, Wang T, Huang X, Dolfing J, Xie B
Publication type: Article
Publication status: Published
Journal: Applied Microbiology and Biotechnology
Year: 2015
Volume: 99
Issue: 19
Pages: 7827-7836
Print publication date: 01/10/2015
Online publication date: 04/08/2015
Acceptance date: 16/07/2015
ISSN (print): 0175-7598
ISSN (electronic): 1432-0614
Publisher: Springer
URL: http://dx.doi.org/10.1007/s00253-015-6857-x
DOI: 10.1007/s00253-015-6857-x
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