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dc.contributor.authorMartínez Díaz, Raquel
dc.contributor.authorRuiz Pérez, María Olga 
dc.contributor.authorRamos Rodríguez, Cipriano 
dc.contributor.authorCámara Nebreda, José María 
dc.contributor.authorDiez Blanco, Victorino 
dc.date.accessioned2024-01-10T08:54:45Z
dc.date.available2024-01-10T08:54:45Z
dc.date.issued2020-07
dc.identifier.issn1369-703X
dc.identifier.urihttp://hdl.handle.net/10259/8278
dc.description.abstractAnaerobic sludge filtration tests were performed with two experimental set-ups equipped with either submerged hollow-fiber membranes or external tubular membranes operated with low crossflow velocity and gas sparging in a gas-lift mode. Particle size distributions, extracellular polymeric substance concentrations, methanogenic activity, reversible and irreversible fouling rates, and chemical cleaning efficiency were all studied and compared. An increase in the percentage of smaller particles and a decrease in the concentration of volatile suspended solids in the external membrane set-up were observed. Both soluble protein and soluble polysaccharide concentrations were also higher in the external filtration. Operating at 12–15 L/m2 h for 7 days, the total resistance of the external membrane reached 9.3 × 1012 m−1, while the resistance of submerged membrane reached 1.1 × 1012 m−1 despite operating at 15–25 L/m2 h for 12 days. Finally, the type of fouling and the efficiency of chemical cleaning also differed in both configurations.en
dc.description.sponsorshipThe authors gratefully acknowledge financial support provided by TCUE 2015–2017 cofounded by European Regional Development Fund (ERDF) and Junta de Castilla y León and the inestimable collaboration of Campofrio Frescos and Grupo Ecoalia.en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofBiochemical Engineering Journal. 2020, V. 159, 107558en
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectSubmerged filtrationen
dc.subjectExternal filtrationen
dc.subjectAnaerobic membrane bioreactoren
dc.subjectGas-lift modeen
dc.subjectShear stressen
dc.subjectFouling rateen
dc.subject.otherIngeniería químicaes
dc.subject.otherChemical engineeringen
dc.subject.otherBioquímicaes
dc.subject.otherBiochemistryen
dc.titleComparison of external and submerged membranes used in anaerobic membrane bioreactors: Fouling related issues and biological activityen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1016/j.bej.2020.107558es
dc.identifier.doi10.1016/j.bej.2020.107558
dc.journal.titleBiochemical Engineering Journalen
dc.volume.number159es
dc.page.initial107558es
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones


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