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dc.contributor.authorRuiz Sánchez, Josep
dc.contributor.authorLópez, Aida
dc.contributor.authorRiau Arenas, Victor
dc.contributor.authorPrenafeta Boldú, Francesc Xavier
dc.contributor.authorFernández García, Belén
dc.contributor.authorFlotats Ripoll, Xavier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia
dc.date.accessioned2018-05-07T10:37:36Z
dc.date.issued2017
dc.identifier.citationRuiz, J., López, A., Riau, V., Prenafeta, F., Fernández, B., Flotats, X. Biogas production from N-rich wastes: SAOB-HM enriched digester versus hydrophobic membrane assisted digester. "Proceedings of the 15th World Congress on Anaerobic Digestion", 2017, p. 695-698.
dc.identifier.urihttp://hdl.handle.net/2117/116975
dc.description.abstractHydrophobic membranes (HMM) are common in water purification processes to separate volatile compounds. When such membranes are combined with anaerobic digesters (AD), inhibitory phenomena affecting methanogenesis due to ammonium nitrogen, would be overcome. In this work, four continuous AD were operated under high N level and similar conditions (feed composition and loading, temperature and inoculum). Two AD were coupled to HMM with different membrane surface area to digester volume ratio (Am/V), while the third AD had not membrane (control AD). A fourth reactor was operated at high retention time to prompt the syntrophic acetate oxidation (SAO) route. Despite the similar total N inlet content (3.5-4.3 gN L-1), reactor performances were completely different, depending on the Am/V ratio for low retention time values. Conversely, upon operation at a high retention time, the enrichment of acetate syntrophic oxidizing bacteria and hydrogenotrophic methanogens (SAOB-HM) prevented ammonia inhibition. A modified ADM1 model, which included ammonia extraction by HMM and the SAOB population, fitted to the experimental data and helped to understand the observed patterns.
dc.format.extent4 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua
dc.subject.lcshHydrophobic surfaces
dc.subject.otherN-rich wastes
dc.subject.otherhydrophobic membranes
dc.subject.othersyntrophic acetate oxidizers
dc.subject.otherbiogas
dc.subject.othermethane
dc.titleBiogas production from N-rich wastes: SAOB-HM enriched digester versus hydrophobic membrane assisted digester
dc.typeArticle
dc.subject.lemacSuperficies hidrofòbiques
dc.contributor.groupUniversitat Politècnica de Catalunya. GREA - Grup de Recerca d'Enginyeria Agro-Ambiental
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac21590594
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorRuiz, J.; López, A.; Riau, V.; Prenafeta, F.; Fernández, B.; Flotats, X.
local.citation.contributorWorld Congress on Anaerobic Digestion
local.citation.publicationNameProceedings of the 15th World Congress on Anaerobic Digestion
local.citation.startingPage695
local.citation.endingPage698


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