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dc.contributor.authorCerrillo Moreno, Míriam
dc.contributor.authorViñas Canals, Marc
dc.contributor.authorBonmatí Blasi, August
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.date.accessioned2018-04-23T19:52:18Z
dc.date.available2018-04-23T19:52:18Z
dc.date.issued2017-09-07
dc.identifier.citationCerrillo, M., Viñas , M., Bonmatí, A. Startup of electromethanogenic microbial electrolysis cells with two different biomass inocula for biogas upgrading. "ACS sustainable chemistry & engineering", 7 Setembre 2017, vol. 5, núm. 10, p. 8852-8859.
dc.identifier.issn2168-0485
dc.identifier.urihttp://hdl.handle.net/2117/116593
dc.description.abstractThe performance and biomass enrichment of the biocathode of a pair of lab-scale two-chambered microbial electrolysis cells (MEC) were assessed for 95 days as a technology for upgrading the biogas produced in anaerobic digesters, converting CO2 into CH4 through the electromethanogenic process. Two different inocula were compared: (i) a mixture of biomass from the anode of a MEC and anaerobic granular sludge (BC1); (ii) biomass enriched in a methanol-fed upflow anaerobic sludge blanket reactor (UASB) (BC2). Quantitative and qualitative microbial community assessment of the enrichment process on the biocathodes was performed by means of high-throughput sequencing of 16S rDNA- and 16S rRNA-based massive libraries as well as RT-qPCR of 16S rRNA and mcrA genes. Although BC2 had a faster increase in current density than BC1, there were no significant differences neither in the average CH4 production (0.23 ± 0.01 and 0.22 ± 0.05 L m–3 day–1 for BC1 and BC2, respectively) nor in the cathodic methane recovery efficiency (65 ± 8% and 79 ± 17%, respectively). Independently from the origin of the inoculum, total and active archaeal microbial community in both biocathodes was dominated by hydrogenotrophic methanogenic archaea, especially belonging to Methanobacteriaceae family (mainly Methanobrevibacter genus) (84–98% of both 16S rDNA and 16S rRNA relative abundance).
dc.format.extent8 p.
dc.language.isoeng
dc.publisherAmerican Chemical Society (ACS)
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Energies::Recursos energètics renovables::Biogàs
dc.subject.lcshBiogas
dc.subject.otherBiocathode
dc.subject.otherBiogas upgrading
dc.subject.otherElectromethanogenesis
dc.subject.otherGene expression
dc.subject.otherHydrogenotrophic methanogen
dc.subject.otherRNA/cDNA
dc.titleStartup of electromethanogenic microbial electrolysis cells with two different biomass inocula for biogas upgrading
dc.typeArticle
dc.subject.lemacBiogas -- Aplicacions agrícoles
dc.contributor.groupUniversitat Politècnica de Catalunya. GREA - Grup de Recerca d'Enginyeria Agro-Ambiental
dc.identifier.doi10.1021/acssuschemeng.7b01636
dc.relation.publisherversionhttp://pubs.acs.org/doi/abs/10.1021/acssuschemeng.7b01636
dc.rights.accessOpen Access
drac.iddocument21555440
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorCerrillo, M., Viñas , M., Bonmatí, A.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameACS sustainable chemistry & engineering
upcommons.citation.volume5
upcommons.citation.number10
upcommons.citation.startingPage8852
upcommons.citation.endingPage8859


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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain