Towards integrated operation of membrane bioreactors: effects of aeration on biological and filtration performance
dc.contributor.author
dc.date.accessioned
2015-04-30T09:52:33Z
dc.date.available
2015-04-30T09:52:33Z
dc.date.issued
2014
dc.identifier.issn
0960-8524
dc.identifier.uri
dc.description.abstract
Two experimental studies evaluated the effect of aerobic and membrane aeration changes on sludge properties, biological nutrient removal and filtration processes in a pilot plant membrane bioreactor. The optimal operating conditions were found at an aerobic dissolved oxygen set-point (DO) of 0.5mgO2L-1 and a membrane specific aeration demand (SADm) of 1mh-1, where membrane aeration can be used for nitrification. Under these conditions, a total flow reduction of 42% was achieved (75% energy reduction) without compromising nutrient removal efficiencies, maintaining sludge characteristics and controlled filtration. Below these optimal operating conditions, the nutrient removal efficiency was reduced, increasing 20% for soluble microbial products, 14% for capillarity suction time and reducing a 15% for filterability. Below this DO set-point, fouling increased with a transmembrane pressure 75% higher. SADm below 1mh-1 doubled the values of transmembrane pressure, without recovery after achieving the initial conditions
dc.description.sponsorship
The research leading to these results has received funding from the Spanish Ministry of Economy and Competitiveness (CTM2012-38314-C02-01 and PCIN-2013-074) and from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013, under REA agreement 289193 (SANITAS) and under REA agreement 600388 (TECNIOSPRING)). This publication reflects only the authors' views, and the European Union is not liable for any use that may be made of the information contained therein. Montse Dalmau received a grant from the Spanish Ministry of Economy and Competitiveness (BES-2010-033288)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
info:eu-repo/grantAgreement/MINECO//CTM2012-38314-C02-01/ES/DESTINO DE MICROCONTAMINANTES Y PRODUCTOS DE DESINFECCION EN BIORREACTORES DE MEMBRANAS Y OSMOSIS INVERSA O NANOFILTRACION SEGUIDO DE DESINFECCION./
info:eu-repo/grantAgreement/MINECO//PCIN-2013-074/ES/MODELADO, CONTROL Y SISTEMAS DE AYUDA A LA DECISION AVANZADOS PARA EL DISEÑO Y OPERACION DE SISTEMAS DE SANEAMIENTO DE AGUAS RESIDUALES FLEXIBLES Y OPTIMOS./
dc.relation.isformatof
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.biortech.2014.08.031
dc.relation.ispartof
© Bioresource Technology, 2014, vol. 171, p. 103-112
dc.relation.ispartofseries
Articles publicats (D-EQATA)
dc.rights
Tots els drets reservats
dc.subject
dc.title
Towards integrated operation of membrane bioreactors: effects of aeration on biological and filtration performance
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.relation.projectID
info:eu-repo/grantAgreement/EC/FP7/289193/EU/Sustainable and integrated urban water system management/SANITAS
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
021497
dc.contributor.funder
dc.relation.FundingProgramme
dc.relation.ProjectAcronym