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dc.contributor.authorArias Lizarraga, Dulce María
dc.contributor.authorSolé Bundó, Maria
dc.contributor.authorGarfi, Marianna
dc.contributor.authorFerrer Martí, Ivet
dc.contributor.authorGarcía Serrano, Joan
dc.contributor.authorUggetti, Enrica
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut Universitari de Recerca en Ciència i Tecnologies de la Sostenibilitat
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.identifier.citationArias , D.M., Sole, M., Marianna Garfi', Ferrer, I., Garcia, J., Uggetti, E. Integrating microalgae tertiary treatment into activated sludge systems for energy and nutrients recovery from wastewater. "Bioresource technology", 1 Gener 2018, vol. 247, p. 513-519.
dc.description.abstractIn this study, microalgae digestate and secondary effluent were used to grow microalgae in a tertiary wastewater treatment, and then, the biomass was co-digested for biogas generation. A 30 L closed-photobioreactor was used for microalgae cultivation. The biomass, mainly composed by Scenedesmus sp., reached and maintained a concentration of 1.1 gTSS/L during 30 days. A complete removal of N-NH4 + and P-PO4 3- and high nitrates and organic matter removals were achieved (58% N-NO3 - and 70% COD) with 8 d of HRT. The potential biogas production of the cultivated microalgae was determined in batch tests. To improve their biodegradability, a novel method combining their co-digestion with activated sludge after a simultaneous autohydrolysis co-pretreatment was evaluated. After the co-pretreatment, the methane yield increased by 130%. Thus, integrating microalgae tertiary treatment into activated sludge systems is a promising and feasible solution to recover energy and nutrients from waste, improving wastewater treatment plants sustainability.
dc.format.extent7 p.
dc.subjectÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental
dc.subject.lcshBiomass energy
dc.subject.otherAnaerobic digestion
dc.subject.otherAutohydrolysis pretreatment
dc.subject.otherMicroalgal biomass
dc.titleIntegrating microalgae tertiary treatment into activated sludge systems for energy and nutrients recovery from wastewater
dc.subject.lemacEnergia de la biomassa
dc.contributor.groupUniversitat Politècnica de Catalunya. GEMMA - Grup d'Enginyeria i Microbiologia del Medi Ambient
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorArias , D.M., Sole, M., Marianna Garfi', Ferrer, I., Garcia, J., Uggetti, E.
upcommons.citation.publicationNameBioresource technology

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