Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/72545
DC FieldValueLanguage
dc.contributor.authorVeza, J. A.en_US
dc.contributor.authorRodriguez-Gonzalez, Juan Joséen_US
dc.date.accessioned2020-05-18T15:32:43Z-
dc.date.available2020-05-18T15:32:43Z-
dc.date.issued2003en_US
dc.identifier.issn0011-9164en_US
dc.identifier.otherWoS-
dc.identifier.urihttp://hdl.handle.net/10553/72545-
dc.description.abstractThis paper describes some tests made with old seawater reverse osmosis (RO) membranes, modified to be reused as filtration membranes. These modified membranes were then used to reduce suspended solids in the tertiary treatment of municipal wastewater. The purpose of the tests was to establish the feasibility of recovering old (discarded) membranes in order to reduce industrial solid waste, as well as reducing costs in new filtration membranes. The active layer in the old RO elements was skinned off by recirculation of a potassium permanganate solution, which drastically reduced the salt rejection properties of the membranes, down to 2%. The elements so conditioned were then used as membrane filters inside pressure vessels, which had also been used in RO plants and recovered for a new purpose. The pilot plant was designed to reduce both suspended and dissolved solids from wastewater secondary effluent, with a production capacity designed for 6 m(3)/h. The reused membranes proved capable of reducing suspended solids (93.9% average reduction in turbidity), and the overall separation efficiency reached 97%. The RO unit reduced 98.5% conductivity at a 60% recovery ratio when operating at 32 bar. The filtration membranes developed a high pressure drop, and must be cleaned quite often, both by flushing at high recirculation ratios and by chemical cleaning. The cleaning procedures must be optimised and reduced to a minimum.en_US
dc.languageengen_US
dc.relation.ispartofDesalination (Amsterdam)en_US
dc.sourceDesalination [ISSN 0011-9164], v. 157 (1-3), p. 65-72en_US
dc.subject330806 Regeneración del aguaen_US
dc.subject.otherReuseen_US
dc.subject.otherMembraneen_US
dc.subject.otherReverse Osmosisen_US
dc.subject.otherReuseen_US
dc.subject.otherWastewateren_US
dc.subject.otherFiltrationen_US
dc.titleSecond use for old reverse osmosis membranes: wastewater treatmenten_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.relation.conferenceConference on Desalination and the Environment - Fresh Water for All
dc.identifier.doi10.1016/S0011-9164(03)00384-9en_US
dc.identifier.scopus0042342446-
dc.identifier.isi000183886100009-
dc.contributor.authorscopusid6603603975-
dc.contributor.authorscopusid7003391897-
dc.description.lastpage72en_US
dc.identifier.issue1-3-
dc.description.firstpage65en_US
dc.relation.volume157en_US
dc.investigacionIngeniería y Arquitecturaen_US
dc.type2Artículoen_US
dc.contributor.daisngid2799717-
dc.contributor.daisngid12507031-
dc.description.numberofpages8en_US
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Veza, JA-
dc.contributor.wosstandardWOS:Rodriguez-Gonzalez, JJ-
dc.date.coverdateAgosto 2003en_US
dc.identifier.conferenceidevents120354-
dc.identifier.ulpgces
dc.description.jcr0,694
dc.description.jcrqQ2
dc.description.scieSCIE
item.grantfulltextnone-
item.fulltextSin texto completo-
crisitem.event.eventsstartdate04-05-2003-
crisitem.event.eventsenddate08-05-2003-
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