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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.accessioned2013-11-27T16:38:26Z
dc.date.created2013
dc.date.issued2013
dc.identifier.citationPassos , F.; Ferrer, I. Comparing pretreatment methods to improve the methane yield of microalgae grown in wastewater. A: World Congress on Anaerobic Digestion. "Proceedings of 13th World Congress on Anaerobic Digestion". Santiago de Comspotela: 2013, p. 1-5.
dc.identifier.isbn978-695-7756-1
dc.identifier.urihttp://hdl.handle.net/2117/20824
dc.description.abstractMicroalgae have recently drawn attention as a potential resource for biofuels generation. In the short term, anaerobic digestion seems the most viable downstream process. Still, microalgae cell wall restrains the hydrolysis, hampering the methane production potential. This work aimed at improving the anaerobic biodegradability of microalgae through different pretreatment methods: microwave, low temperature and high temperature. For the microwave pretreatment, the specific energy was the main parameter affecting biomass solubilisation, increasing up to 800 % compared to untreated biomass. For the low and high temperature pretreatments, temperature was the most important factor, increasing biomass solubilisation up to 1190 and 2140 % in each case. BMP tests showed an increased methane yield after all pretreatments (40-80 %), with the highest results for the microwave pretreatment. In semi-continuous reactors operated at 15 days HRT, the methane production was increased by 30 and 33 % after microwave and low temperature pretreatment, respectively. When increasing the HRT to 20 days, the methane yield was further enhanced by 60 and 52 % after microwave and low temperature pretreatment, respectively. Therefore, initial results showed pretreatment potential for microalgae solubilisation and methane yield improvement.
dc.format.extent5 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Energies::Recursos energètics renovables::Biogàs
dc.subjectÀrees temàtiques de la UPC::Energies
dc.subject.lcshBiogas.
dc.subject.lcshBiomass energy.
dc.subject.otherAnaerobic digestion
dc.subject.otherbioenergy
dc.subject.otherbiogas
dc.subject.othermicroalgal biomass
dc.subject.otherpretreatment
dc.subject.othersolubilisation.
dc.titleComparing pretreatment methods to improve the methane yield of microalgae grown in wastewater
dc.typeConference report
dc.subject.lemacBiogàs
dc.subject.lemacEnergia de la biomassa
dc.subject.lemacBiocombustibles
dc.contributor.groupUniversitat Politècnica de Catalunya. GEMMA - Grup d'Enginyeria i Microbiologia del Medi Ambient
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac12893679
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorPassos , F.; Ferrer, I.
local.citation.contributorWorld Congress on Anaerobic Digestion
local.citation.pubplaceSantiago de Comspotela
local.citation.publicationNameProceedings of 13th World Congress on Anaerobic Digestion
local.citation.startingPage1
local.citation.endingPage5


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