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dc.contributor.authorTeychene, Benoît
dc.contributor.authorCollet, Gaelle
dc.contributor.authorGallard, Hervé
dc.contributor.authorCroue, Jean Philippe
dc.date.accessioned2016-01-19T14:44:36Z
dc.date.available2016-01-19T14:44:36Z
dc.date.issued2013-02
dc.identifier.citationTeychene B, Collet G, Gallard H, Croue J-P (2013) A comparative study of boron and arsenic (III) rejection from brackish water by reverse osmosis membranes. Desalination 310: 109–114. Available: http://dx.doi.org/10.1016/j.desal.2012.05.034.
dc.identifier.issn0011-9164
dc.identifier.doi10.1016/j.desal.2012.05.034
dc.identifier.urihttp://hdl.handle.net/10754/594260
dc.description.abstractThis study aims to compare at lab-scale the rejection efficiency of several reverse osmosis membranes (RO) toward arsenic (III) and boron during the filtration of a synthetic brackish water. The effect of pH and operating conditions on the rejection of each RO membrane was studied. Two types of membrane were investigated: "brackish water" and "sea water" membranes. Our results showed that the metalloid rejection depends on the membrane type, pH and transmembrane pressure applied. Increasing pH above the dissociation constant (pKa) of each specie improves significantly the metalloid rejection by RO membranes, whatever the membrane type. Moreover, at identical operating conditions (pH, transmembrane pressure), results showed that the brackish water membranes have a higher water flux and exhibit lower metalloid rejection. The highest As(III) rejection value for the tested brackish water membranes was 99% obtained at pH = 9.6 and 40 bars, whereas it was found that the sea water RO membranes could highly reject As(III), more than 99%, even at low pH and low pressure (pH = 7.6 and 24 bars).Regarding Boron rejection, similar conclusions could be drawn. The sea water RO membranes exert higher removal, with a high rejection value above 96% over the tested conditions. More generally, this study showed that, whatever the operating conditions or the tested membranes, the boron and As(III) permeate concentrations are below the WHO guidelines. In addition, new data about the boron and arsenic permeability of each tested RO membrane was brought thanks to a theoretical calculation. © 2012 Elsevier B.V.
dc.publisherElsevier BV
dc.subjectArsenic (III)
dc.subjectBoron
dc.subjectBrackish water
dc.subjectReverse osmosis
dc.titleA comparative study of boron and arsenic (III) rejection from brackish water by reverse osmosis membranes
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalDesalination
dc.contributor.institutionInstitut de Chimie des Milieux et des Matériaux de Poitiers (IC2MP UMR 7285), École Nationale Supérieure d'Ingénieurs de Poitiers (ENSIP), Université de Poitiers, Bâtiment 16, 1 rue Marcel Doré, 86022 Poitiers Cedex, France
kaust.personCroue, Jean-Philippe


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