Long-term assessment of the six-stacked scaled-up MFCs treating swine manure with different electrode materials
dc.contributor.author
dc.date.accessioned
2017-07-19T07:54:19Z
dc.date.available
2017-07-19T07:54:19Z
dc.date.issued
2017-07-13
dc.identifier.issn
2053-1400
dc.identifier.uri
dc.description.abstract
Microbial fuel cells (MFCs) technology is a bio-approach to remove organic matter and nitrogen from wastewater with concomitant production of renewable electricity. Nowadays, it exists a clear interest in moving MFCs towards application. This study aimed to demonstrate MFCs technology feasibility treating swine manure. A couple of 6-stacked MFCs presenting a total volume of 115 L were designed and operated to treat swine manure at 50 L·d-1 for more than 6 months. Two different electrodes were tested, one for each stacked MFC: Granular graphite (GG-MFC) and stainless steel mesh (SS-MFC). Organic matter was oxidised in the anode compartments, ammonium was oxidized to nitrate in an external aerated reactor, and nitrate was reduced to dinitrogen gas in the biocathodes. GG and SS-MFCs reached similar organic matter and nitrogen removal rates (1.9±0.3 kg COD m-3 d-1; 0.35±0.02 kg N m-3 d-1) with power densities between 2-4 Wm-3, being the central units the most electroactive. However, the GG-MFC performance declined overtime due to electrode crushing and the clogging of granular graphite which reduced its applicability in comparison with stainless steel. The application of stacked SS-MFC with mixed electric circuit is a feasible strategy to maintain or even improve treatment efficiencies and power densities when scaling-up MFCs
dc.description.sponsorship
This research was financially supported by the 532 Company Abengoa Water within the TEcoAgua project (CIEN-20091028), the Spanish 533 Government (CTQ2014-53718-R) and the Catalan Government (2014 FI-B 00093)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry (RSC)
dc.relation
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/
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1039/C7EW00079K
dc.relation.ispartof
Environmental Science: Water Research & Technology, 2017, vol. 3, p. 947-959
dc.relation.ispartofseries
Articles publicats (D-EQATA)
dc.rights
Attribution 3.0 Spain
dc.rights.uri
dc.subject
dc.title
Long-term assessment of the six-stacked scaled-up MFCs treating swine manure with different electrode materials
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
Cap
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
027047
dc.contributor.funder
dc.relation.ProjectAcronym
dc.identifier.eissn
2053-1419