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dc.contributor.authorSerejo, Mayara L.
dc.contributor.authorMuñoz Torre, Raúl 
dc.contributor.authorPosadas Olmos, Esther
dc.contributor.authorBoncz, Marc A.
dc.contributor.authorBlanco, Saúl
dc.contributor.authorGarcía Encina, Pedro Antonio 
dc.date.accessioned2017-11-06T13:47:28Z
dc.date.available2017-11-06T13:47:28Z
dc.date.issued2015
dc.identifier.citationEnvironmental Science & Technology, 2015, 49(5), pag. 3228-3236es
dc.identifier.urihttp://uvadoc.uva.es/handle/10324/26908
dc.descriptionProducción Científicaes
dc.description.abstractThe influence of biogas flow rate (0, 0.3, 0.6, and 1.2 m3 m–2 h–1) on the elemental and macromolecular composition of the algal-bacterial biomass produced from biogas upgrading in a 180 L photobioreactor interconnected to a 2.5 L external bubbled absorption column was investigated using diluted anaerobically digested vinasse as cultivation medium. The influence of the external liquid recirculation/biogas ratio (0.5 < L/G < 67) on the removal of CO2 and H2S, and on the concentrations of O2 and N2 in the upgraded biogas, was also evaluated. A L/G ratio of 10 was considered optimum to support CO2 and H2S removals of 80% and 100%, respectively, at all biogas flow rates tested. Biomass productivity increased at increasing biogas flow rate, with a maximum of 12 ± 1 g m–2 d–1 at 1.2 m3 m–2 h–1, while the C, N, and P biomass content remained constant at 49 ± 2%, 9 ± 0%, and 1 ± 0%, respectively, over the 175 days of experimentation. The high carbohydrate contents (60–76%), inversely correlated to biogas flow rates, would allow the production of ≈100 L of ethanol per 1000 m3 of biogas upgraded under a biorefinery process approach.es
dc.format.mimetypeapplication/pdfes
dc.language.isoenges
dc.publisherAmerican Chemical Societyes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.classificationBiogáses
dc.titleInfluence of biogas flow rate on biomass composition during the optimization of biogas upgrading in microalgal-bacterial processeses
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doi10.1021/es5056116es
dc.relation.publisherversionhttp://pubs.acs.org/doi/10.1021/es5056116es
dc.peerreviewedSIes
dc.description.projectJunta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. Project VA024U14 and GR76)es
dc.description.projectINIA (Project RTA2013-00056-C03-02)es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International


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