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Ministerio de EconomÃa y Competitividad (Espanya) | |
Vilajeliu Pons, Anna
Bañeras Vives, LluÃs Puig Broch, Sebastià Molognoni, Daniele Vilà -Rovira, Albert Hernández-del Amo, Elena Balaguer i Condom, Maria Dolors Colprim Galceran, Jesús |
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2016 October 4 | |
Microbial fuel cells (MFCs) can be designed to combine water treatment with concomitant
electricity production. Animal manure treatment has been poorly explored using MFCs, and
its implementation at full-scale primarily relies on the bacterial distribution and activity within
the treatment cell. This study reports the bacterial community changes at four positions
within the anode of two almost identically operated MFCs fed swine manure. Changes in
the microbiome structure are described according to the MFC fluid dynamics and the application
of a maximum power point tracking system (MPPT) compared to a fixed resistance
system (Ref-MFC). Both external resistance and cell hydrodynamics are thought to heavily
influence MFC performance. The microbiome was characterised both quantitatively
(qPCR) and qualitatively (454-pyrosequencing) by targeting bacterial 16S rRNA genes.
The diversity of the microbial community in the MFC biofilm was reduced and differed from
the influent swine manure. The adopted electric condition (MPPT vs fixed resistance)
was more relevant than the fluid dynamics in shaping the MFC microbiome. MPPT control
positively affected bacterial abundance and promoted the selection of putatively exoelectrogenic
bacteria in the MFC core microbiome (Sedimentibacter sp. and gammaproteobacteria).
These differences in the microbiome may be responsible for the two-fold increase in
power production achieved by the MPPT-MFC compared to the Ref-MFC This research was financially supported by the Spanish Government (CTQ2014-53718-R) and the Catalan Government (2014 FI-B 00093) |
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application/pdf | |
http://hdl.handle.net/10256/12956 | |
eng | |
Public Library of Science (PLoS) | |
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0164044 info:eu-repo/semantics/altIdentifier/eissn/1932-6203 info:eu-repo/grantAgreement/MINECO//CTQ2014-53718-R/ES/TECNOLOGIAS INNOVADORAS PARA LA MEJORA DE BIOGAS: DESDE LA INVESTIGACION BASICA A LA EVALUACION DE TECNOLOGIAS/ |
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Attribution 3.0 Spain | |
http://creativecommons.org/licenses/by/3.0/es/ | |
Energia de la biomassa
Biomass energy Cel·la de combustible biològic Microbial fuel cells |
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External resistances applied to MFC affect core microbiome and swine manure treatment efficiencies | |
info:eu-repo/semantics/article | |
DUGiDocs |