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Evaluation of different types of anaerobic seed sludge for the high rate anaerobic digestion of pig slurry in UASB reactors

dc.contributor.authorRico de la Hera, Carlos 
dc.contributor.authorMontes Casaus, Jesús Andrés
dc.contributor.authorRico Gutiérrez, José Luis 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2017-04-26T16:05:16Z
dc.date.available2019-08-31T02:45:11Z
dc.date.issued2017-08
dc.identifier.issn0960-8524
dc.identifier.issn1873-2976
dc.identifier.urihttp://hdl.handle.net/10902/10884
dc.description.abstractThree different types of anaerobic sludge (granular, thickened digestate and anaerobic sewage) were evaluated as seed inoculum sources for the high rate anaerobic digestion of pig slurry in UASB reactors. Granular sludge performance was optimal, allowing a high efficiency process yielding a volumetric methane production rate of 4.1 L CH4 L-1 d-1 at 1.5 days HRT (0.248 L CH4 g-1 COD) at an organic loading rate of 16.4 g COD L-1 d-1. The thickened digestate sludge experimented flotation problems, thus resulting inappropriate for the UASB process. The anaerobic sewage sludge reactor experimented biomass wash-out, but allowed high process efficiency operation at 3 days HRT, yielding a volumetric methane production rate of 1.7 L CH4 L-1 d-1(0.236 L CH4 g-1 COD) at an organic loading rate of 7.2 g COD L-1 d-1. To guarantee the success of the UASB process, the settleable solids of the slurry must be previously removed.es_ES
dc.format.extent38 p.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rights© 2017, Elsevier. Licensed under the Creative Commons Reconocimiento-NoComercial-SinObraDerivadaes_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/es_ES
dc.sourceBioresource Technology, 2017, 238, 147–156es_ES
dc.subject.otherGranular sludgees_ES
dc.subject.otherAnaerobic sewage sludgees_ES
dc.subject.otherSupernatantes_ES
dc.subject.otherVolumetric methane production ratees_ES
dc.subject.otherThickened digestatees_ES
dc.titleEvaluation of different types of anaerobic seed sludge for the high rate anaerobic digestion of pig slurry in UASB reactorses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttp://doi.org/10.1016/j.biortech.2017.04.014es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1016/j.biortech.2017.04.014
dc.type.versionacceptedVersiones_ES


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