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Salt and water permeability in reverse osmosis membranes

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dc.contributor.author Voros, NG en
dc.contributor.author Maroulis, ZB en
dc.contributor.author Marinos-Kouris, D en
dc.date.accessioned 2014-03-01T01:12:14Z
dc.date.available 2014-03-01T01:12:14Z
dc.date.issued 1996 en
dc.identifier.issn 0011-9164 en
dc.identifier.uri http://hdl.handle.net/123456789/12029
dc.subject Cellulose-acetate membranes en
dc.subject Reverse osmosis en
dc.subject Transport coefficients modeling en
dc.subject.classification Engineering, Chemical en
dc.subject.classification Water Resources en
dc.subject.other Brines en
dc.subject.other Calculations en
dc.subject.other Desalination en
dc.subject.other Flow of fluids en
dc.subject.other Ions en
dc.subject.other Mass transfer en
dc.subject.other Mathematical models en
dc.subject.other Mechanical permeability en
dc.subject.other Reverse osmosis en
dc.subject.other Brackish water en
dc.subject.other Brine concentration en
dc.subject.other Brine flux en
dc.subject.other Cellulose acetate membranes en
dc.subject.other Permeate concentration en
dc.subject.other Permeate flux en
dc.subject.other Osmosis membranes en
dc.subject.other desalination en
dc.subject.other membranes en
dc.subject.other modelling-mathematical en
dc.subject.other permeability en
dc.subject.other reverse osmosis en
dc.title Salt and water permeability in reverse osmosis membranes en
heal.type journalArticle en
heal.identifier.primary 10.1016/0011-9164(96)00037-9 en
heal.identifier.secondary http://dx.doi.org/10.1016/0011-9164(96)00037-9 en
heal.language English en
heal.publicationDate 1996 en
heal.abstract The permeate flux, permeate concentration, brine flux, and brine concentration have been experimentally determined. A pilot-scale reverse osmosis configuration consisting of 18 tubular-type cellulose acetate membranes has been used for the desalination of brackish water. The transport parameters (i.e., mass transfer coefficients) as well as the permeability coefficients (of water and salt) in reverse osmosis membranes, useful for the prediction of the membrane performance and membrane characterization, have been calculated by fitting the model predictions to the experimental results. A classical model, applicable for reverse osmosis systems, has been used. The effect of the operating conditions (pressure, flowrate, and concentration) on the model parameters has also been studied. Through the incorporation of six adjustable parameters to the model, the prediction results have been found to be in good agreement with the experimental data within the accuracy of the experimental determination. Finally, a study of the membrane performance on the rejection of six different ions (chloride, sodium, calcium, magnesium, bicarbonate, and sulphate) has also been made. The permeability parameter values for these ions have been determined and are reported. This option also yielded quite satisfactory predictions, as far as the permeate concentrations and flowrates are concerned. en
heal.publisher ELSEVIER SCIENCE BV en
heal.journalName Desalination en
dc.identifier.doi 10.1016/0011-9164(96)00037-9 en
dc.identifier.isi ISI:A1996UR90500001 en
dc.identifier.volume 104 en
dc.identifier.issue 3 en
dc.identifier.spage 141 en
dc.identifier.epage 154 en


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