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dc.contributor.authorPassos, Fabiana Lopes del Rei
dc.contributor.authorFerrer Martí, Ivet
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Hidràulica, Marítima i Ambiental
dc.date.accessioned2015-02-19T16:48:19Z
dc.date.available2015-02-25T15:32:34Z
dc.date.created2015-01-01
dc.date.issued2015-01-01
dc.identifier.citationPassos , F.; Ferrer, I. Influence of hydrothermal pretreatment on microalgal biomass anaerobic digestion and bioenergy production. "Water research (Oxford)", 01 Gener 2015, vol. 68, p. 364-373.
dc.identifier.issn0043-1354
dc.identifier.otherhttps://www.researchgate.net/publication/267515984_Influence_of_hydrothermal_pretreatment_on_microalgal_biomass_anaerobic_digestion_and_bioenergy_production
dc.identifier.urihttp://hdl.handle.net/2117/26439
dc.description.abstractMicroalgal biomass grown in wastewater treatment raceway ponds may be valorised producing bioenergy through anaerobic digestion. However, pretreatment techniques seem to be necessary for enhancing microalgae methane yield. In this study, hydrothermal pretreatment was studied prior to batch and continuous reactors. The pretreatment increased organic matter solubilisation (8-13%), anaerobic digestion rate (30-90%) and final methane yield (17-39%) in batch tests. The highest increase was attained with the pretreatment at 130 degrees C for 15 min, which was attested in a laboratory-scale continuous reactor operated at a hydraulic retention time of 20 days with an average organic loading rate of 0.7 g VS/L center dot day. The methane yield increased from 0.12 to 0.17 L CH4/g VS (41%) in the pretreated digester as compared to the control. Microscopic images of microalgal biomass showed that pretreated cells had unstructured organelles and disrupted cell wall external layer, which may enhance the hydrolysis. Indeed, images of the pretreated reactor digestate showed how cells were more degraded than in the control reactor. (C) 2014 Elsevier Ltd. All rights reserved.
dc.format.extent10 p.
dc.language.isoeng
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
dc.subjectÀrees temàtiques de la UPC::Energies::Recursos energètics renovables::Biogàs
dc.subject.lcshBiogas
dc.subject.lcshBiomass energy
dc.subject.otherAlgae
dc.subject.otherBioenergy
dc.subject.otherBiogas
dc.subject.otherMethane
dc.subject.otherMicroalgae
dc.subject.otherWastewater
dc.subject.otherSCENEDESMUS SP BIOMASS
dc.subject.otherMETHANE PRODUCTION
dc.subject.otherMICROWAVE PRETREATMENT
dc.subject.otherTHERMAL PRETREATMENT
dc.subject.otherBIOGAS PRODUCTION
dc.titleInfluence of hydrothermal pretreatment on microalgal biomass anaerobic digestion and bioenergy production
dc.typeArticle
dc.subject.lemacBiogàs
dc.subject.lemacEnergia de la biomassa
dc.subject.lemacAlgues -- Biotecnologia
dc.contributor.groupUniversitat Politècnica de Catalunya. GEMMA - Grup d'Enginyeria i Microbiologia del Medi Ambient
dc.identifier.doi10.1016/j.watres.2014.10.015
dc.relation.publisherversionhttps://www-sciencedirect-com.recursos.biblioteca.upc.edu/science/article/pii/S0043135414007106
dc.rights.accessOpen Access
drac.iddocument15432773
dc.description.versionPostprint (published version)
upcommons.citation.authorPassos , F.; Ferrer, I.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameWater research (Oxford)
upcommons.citation.volume68
upcommons.citation.startingPage364
upcommons.citation.endingPage373


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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