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Cleaning of ultrafiltration membranes after the treatment of surface water: static–dynamic test

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Cleaning of ultrafiltration membranes after the treatment of surface water: static–dynamic test

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dc.contributor.author García Fayos, Beatriz es_ES
dc.contributor.author Arnal Arnal, José Miguel es_ES
dc.contributor.author Sancho Fernández, María Pino es_ES
dc.date.accessioned 2016-09-27T11:01:57Z
dc.date.available 2016-09-27T11:01:57Z
dc.date.issued 2013-01
dc.identifier.issn 1944-3986
dc.identifier.uri http://hdl.handle.net/10251/70476
dc.description.abstract Access to safe drinkable water is a basic human right and an international development goal. AQUAPOT international project, created by Chemical and Nuclear Engineering Department of the Polytechnic University of Valencia, has been focused on research and development of low-cost and effective water treatment technologies based on membrane technology able to be used in developing countries. After several years of intensive laboratory and field research, Aquapot's ultrafiltration (UF) plants have been settled in different locations of Ecuador (province of Azuay) and Mozambique (province of Maputo). At present, most of the installed plants work successfully, producing drinking water suitable for human consumption and even for industrial use. However, installation of the designed UF-drinking water treatment facilities has shown that cleaning standard protocol of ultrafiltration membranes is not effective. This fact could affect microbiological quality and volume of the pure water produced and also life of the membrane and the UF-plant. In order to develop optimized cleaning protocols based on the use of common and accessible chemicals, Aquapot started an applied research studying several cleaning methods. Previous studies have been focused in applying different types of cleaning: chemical cleaning (by means of static tests and dynamic tests) and physico-chemical cleaning (combining chemical reagents with the hydrodynamic action of air bubbles). This work describes the experimental procedure performed in static-dynamic cleaning test, which combines soaking with dynamic circulation of cleaning solutions. Sodium hypochlorite and hydrogen peroxide at 25 degrees C performed the best results, recovering permeate flux from 10 to 12 times, respectively, compared with fouled membranes. Main results obtained for the different chemical solutions tested at 25 and 40 degrees C were also compared with previous chemical (static and dynamic test) and physicochemical cleaning. Results showed that the tested cleaning protocol improves the effectiveness of the cleaning and recovers UF membrane performance even until 30 times, when sequence of cleaning is done by sodium hypochlorite followed by hydrogen peroxide. es_ES
dc.language Inglés es_ES
dc.publisher Taylor & Francis es_ES
dc.relation.ispartof Desalination and Water Treatment es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject UF es_ES
dc.subject Membrane cleaning es_ES
dc.subject AQUAPOT es_ES
dc.subject Static-dynamic test es_ES
dc.subject Drinking water es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Cleaning of ultrafiltration membranes after the treatment of surface water: static–dynamic test es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1080/19443994.2012.704687
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.description.bibliographicCitation García Fayos, B.; Arnal Arnal, JM.; Sancho Fernández, MP. (2013). Cleaning of ultrafiltration membranes after the treatment of surface water: static–dynamic test. Desalination and Water Treatment. 51(1-3):609-616. doi:10.1080/19443994.2012.704687 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1080/19443994.2012.704687 es_ES
dc.description.upvformatpinicio 609 es_ES
dc.description.upvformatpfin 616 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 51 es_ES
dc.description.issue 1-3 es_ES
dc.relation.senia 238622 es_ES
dc.identifier.eissn 1944-3986


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