Electricity generation and microbial community structure of air-cathode microbial fuel cells powered with the organic fraction of municipal solid waste and inoculated with different seeds

Handle URI:
http://hdl.handle.net/10754/563668
Title:
Electricity generation and microbial community structure of air-cathode microbial fuel cells powered with the organic fraction of municipal solid waste and inoculated with different seeds
Authors:
El-Chakhtoura, Joline; El-Fadel, Mutasem E.; Rao, Hari Ananda ( 0000-0002-8916-1809 ) ; Li, Dong; Ghanimeh, Sophia A.; Saikaly, Pascal ( 0000-0001-7678-3986 )
Abstract:
The organic fraction of municipal solid waste (OFMSW), normally exceeding 60% of the waste stream in developing countries, could constitute a valuable source of feed for microbial fuel cells (MFCs). This study tested the start-up of two sets of OFMSW-fed air-cathode MFCs inoculated with wastewater sludge or cattle manure. The maximum power density obtained was 123±41mWm-2 in the manure-seeded MFCs and 116±29mWm-2 in the wastewater-seeded MFCs. Coulombic efficiencies ranged between 24±5% (manure-seeded MFCs) and 23±2% (wastewater-seeded MFCs). Chemical oxygen demand removal was >86% in all the MFCs and carbohydrate removal >98%. Microbial community analysis using 16S rRNA gene pyrosequencing demonstrated the dominance of the phylum Firmicutes (67%) on the anode suggesting the possible role of members of this phylum in electricity generation. Principal coordinate analysis showed that the microbial community structure in replicate MFCs converged regardless of the inoculum source. This study demonstrates efficient electricity production coupled with organic treatment in OFMSW-fueled MFCs inoculated with manure or wastewater. © 2014 Elsevier Ltd.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC); Environmental Science and Engineering Program; Water Desalination & Reuse Research Cntr; Environmental Biotechnology Research Group
Publisher:
Elsevier BV
Journal:
Biomass and Bioenergy
Issue Date:
Aug-2014
DOI:
10.1016/j.biombioe.2014.04.020
Type:
Article
ISSN:
09619534
Appears in Collections:
Articles; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorEl-Chakhtoura, Jolineen
dc.contributor.authorEl-Fadel, Mutasem E.en
dc.contributor.authorRao, Hari Anandaen
dc.contributor.authorLi, Dongen
dc.contributor.authorGhanimeh, Sophia A.en
dc.contributor.authorSaikaly, Pascalen
dc.date.accessioned2015-08-03T12:05:38Zen
dc.date.available2015-08-03T12:05:38Zen
dc.date.issued2014-08en
dc.identifier.issn09619534en
dc.identifier.doi10.1016/j.biombioe.2014.04.020en
dc.identifier.urihttp://hdl.handle.net/10754/563668en
dc.description.abstractThe organic fraction of municipal solid waste (OFMSW), normally exceeding 60% of the waste stream in developing countries, could constitute a valuable source of feed for microbial fuel cells (MFCs). This study tested the start-up of two sets of OFMSW-fed air-cathode MFCs inoculated with wastewater sludge or cattle manure. The maximum power density obtained was 123±41mWm-2 in the manure-seeded MFCs and 116±29mWm-2 in the wastewater-seeded MFCs. Coulombic efficiencies ranged between 24±5% (manure-seeded MFCs) and 23±2% (wastewater-seeded MFCs). Chemical oxygen demand removal was >86% in all the MFCs and carbohydrate removal >98%. Microbial community analysis using 16S rRNA gene pyrosequencing demonstrated the dominance of the phylum Firmicutes (67%) on the anode suggesting the possible role of members of this phylum in electricity generation. Principal coordinate analysis showed that the microbial community structure in replicate MFCs converged regardless of the inoculum source. This study demonstrates efficient electricity production coupled with organic treatment in OFMSW-fueled MFCs inoculated with manure or wastewater. © 2014 Elsevier Ltd.en
dc.publisherElsevier BVen
dc.subject16S rRNA gene pyrosequencingen
dc.subjectBiomass energyen
dc.subjectMicrobial fuel cellen
dc.subjectOrganic fraction of municipal solid wasteen
dc.titleElectricity generation and microbial community structure of air-cathode microbial fuel cells powered with the organic fraction of municipal solid waste and inoculated with different seedsen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.contributor.departmentEnvironmental Biotechnology Research Groupen
dc.identifier.journalBiomass and Bioenergyen
dc.contributor.institutionAmerican University of Beirut, Department of Civil and Environmental Engineering, Beirut, Lebanonen
kaust.authorLi, Dongen
kaust.authorSaikaly, Pascalen
kaust.authorRao, Hari Anandaen
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