Virus removal and integrity in aged RO membranes.
Identifieur interne : 001450 ( Main/Exploration ); précédent : 001449; suivant : 001451Virus removal and integrity in aged RO membranes.
Auteurs : Marie-Laure Pype [France] ; Bogdan C. Donose [Australie] ; Llucia Martí [Australie] ; Dominique Patureau [France] ; Nathalie Wery [France] ; Wolfgang Gernjak [Espagne]Source :
- Water research [ 1879-2448 ] ; 2016.
Descripteurs français
- KwdFr :
- MESH :
- isolement et purification : Levivirus.
- Acide hypochloreux, Chlore, Filtration, Interactions hydrophobes et hydrophiles, Membrane artificielle, Osmose, Perméabilité, Purification de l'eau.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Hypochlorous Acid.
- chemical : Chlorine, Membranes, Artificial.
- isolation & purification : Levivirus.
- methods : Filtration, Water Purification.
- Hydrophobic and Hydrophilic Interactions, Osmosis, Permeability.
Abstract
Membrane ageing reduces the quality of the filtered water. Therefore, in order to warrant public health, monitoring membrane performances are of utmost importance. Reverse osmosis (RO) membranes are generally used to remove viruses and salt. However, there is no detailed study demonstrating the impact of aged membrane on the rejection of viruses and of membrane integrity indicators. In this paper, the impact of hypochlorite induced RO ageing on the rejection of a virus surrogate (MS2 phage) and four membrane integrity indicators (salt, dissolved organic matter, rhodamine WT and sulphate) was evaluated. Hypochlorite exposure was either active (under filtration) or passive (soaking), and the changes of the membrane surface chemistry were characterised using several autopsy techniques. Under this accelerated ageing condition, the introduction of chlorine in the membrane chemistry and the breakage of amide bonds caused an increase of the water permeability and a decrease of the virus surrogate's and indicators' rejection. Ageing resulted in a more negatively charged membrane and also in a higher hydrophobicity, which lead to the adsorption of MS2 phage. Despite severe physical membrane damage leading to a reduction of salt rejection to 1.2 log (94%), the minimum rejection of MS2 phage stayed on or above 4 log.
DOI: 10.1016/j.watres.2015.12.023
PubMed: 26724450
Affiliations:
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Donose</name><affiliation wicri:level="1"><nlm:affiliation>Advanced Water Management Centre, The University of Queensland, Brisbane, QLD 4072, Australia; School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Advanced Water Management Centre, The University of Queensland, Brisbane, QLD 4072, Australia; School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072</wicri:regionArea><wicri:noRegion>QLD 4072</wicri:noRegion></affiliation></author><author><name sortKey="Marti, Llucia" sort="Marti, Llucia" uniqKey="Marti L" first="Llucia" last="Martí">Llucia Martí</name><affiliation wicri:level="1"><nlm:affiliation>Advanced Water Management Centre, The University of Queensland, Brisbane, QLD 4072, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Advanced Water Management Centre, The University of Queensland, Brisbane, QLD 4072</wicri:regionArea><wicri:noRegion>QLD 4072</wicri:noRegion></affiliation></author><author><name sortKey="Patureau, Dominique" sort="Patureau, Dominique" uniqKey="Patureau D" first="Dominique" last="Patureau">Dominique Patureau</name><affiliation wicri:level="1"><nlm:affiliation>INRA, UR0050 Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, F-11100 Narbonne, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>INRA, UR0050 Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, F-11100 Narbonne</wicri:regionArea><wicri:noRegion>11100 Narbonne</wicri:noRegion><wicri:noRegion>11100 Narbonne</wicri:noRegion></affiliation></author><author><name sortKey="Wery, Nathalie" sort="Wery, Nathalie" uniqKey="Wery N" first="Nathalie" last="Wery">Nathalie Wery</name><affiliation wicri:level="1"><nlm:affiliation>INRA, UR0050 Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, F-11100 Narbonne, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>INRA, UR0050 Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, F-11100 Narbonne</wicri:regionArea><wicri:noRegion>11100 Narbonne</wicri:noRegion><wicri:noRegion>11100 Narbonne</wicri:noRegion></affiliation></author><author><name sortKey="Gernjak, Wolfgang" sort="Gernjak, Wolfgang" uniqKey="Gernjak W" first="Wolfgang" last="Gernjak">Wolfgang Gernjak</name><affiliation wicri:level="1"><nlm:affiliation>Advanced Water Management Centre, The University of Queensland, Brisbane, QLD 4072, Australia; Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain; Catalan Institute for Water Research (ICRA), Girona 17003, Spain. Electronic address: wgernjak@icra.cat.</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Advanced Water Management Centre, The University of Queensland, Brisbane, QLD 4072, Australia; Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain; Catalan Institute for Water Research (ICRA), Girona 17003</wicri:regionArea><wicri:noRegion>Girona 17003</wicri:noRegion></affiliation></author></analytic><series><title level="j">Water research</title><idno type="eISSN">1879-2448</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chlorine</term><term>Filtration (methods)</term><term>Hydrophobic and Hydrophilic Interactions</term><term>Hypochlorous Acid (chemistry)</term><term>Levivirus (isolation & purification)</term><term>Membranes, Artificial</term><term>Osmosis</term><term>Permeability</term><term>Water Purification (methods)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acide hypochloreux ()</term><term>Chlore</term><term>Filtration ()</term><term>Interactions hydrophobes et hydrophiles</term><term>Levivirus (isolement et purification)</term><term>Membrane artificielle</term><term>Osmose</term><term>Perméabilité</term><term>Purification de l'eau ()</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Hypochlorous Acid</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Chlorine</term><term>Membranes, Artificial</term></keywords><keywords scheme="MESH" qualifier="isolation & purification" xml:lang="en"><term>Levivirus</term></keywords><keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr"><term>Levivirus</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Filtration</term><term>Water Purification</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Hydrophobic and Hydrophilic Interactions</term><term>Osmosis</term><term>Permeability</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Acide hypochloreux</term><term>Chlore</term><term>Filtration</term><term>Interactions hydrophobes et hydrophiles</term><term>Membrane artificielle</term><term>Osmose</term><term>Perméabilité</term><term>Purification de l'eau</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Membrane ageing reduces the quality of the filtered water. Therefore, in order to warrant public health, monitoring membrane performances are of utmost importance. Reverse osmosis (RO) membranes are generally used to remove viruses and salt. However, there is no detailed study demonstrating the impact of aged membrane on the rejection of viruses and of membrane integrity indicators. In this paper, the impact of hypochlorite induced RO ageing on the rejection of a virus surrogate (MS2 phage) and four membrane integrity indicators (salt, dissolved organic matter, rhodamine WT and sulphate) was evaluated. Hypochlorite exposure was either active (under filtration) or passive (soaking), and the changes of the membrane surface chemistry were characterised using several autopsy techniques. Under this accelerated ageing condition, the introduction of chlorine in the membrane chemistry and the breakage of amide bonds caused an increase of the water permeability and a decrease of the virus surrogate's and indicators' rejection. Ageing resulted in a more negatively charged membrane and also in a higher hydrophobicity, which lead to the adsorption of MS2 phage. Despite severe physical membrane damage leading to a reduction of salt rejection to 1.2 log (94%), the minimum rejection of MS2 phage stayed on or above 4 log.</div></front></TEI><affiliations><list><country><li>Australie</li><li>Espagne</li><li>France</li></country><region><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li></region><settlement><li>Narbonne</li></settlement></list><tree><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Pype, Marie Laure" sort="Pype, Marie Laure" uniqKey="Pype M" first="Marie-Laure" last="Pype">Marie-Laure Pype</name></region><name sortKey="Patureau, Dominique" sort="Patureau, Dominique" uniqKey="Patureau D" first="Dominique" last="Patureau">Dominique Patureau</name><name sortKey="Wery, Nathalie" sort="Wery, Nathalie" uniqKey="Wery N" first="Nathalie" last="Wery">Nathalie Wery</name></country><country name="Australie"><noRegion><name sortKey="Donose, Bogdan C" sort="Donose, Bogdan C" uniqKey="Donose B" first="Bogdan C" last="Donose">Bogdan C. Donose</name></noRegion><name sortKey="Marti, Llucia" sort="Marti, Llucia" uniqKey="Marti L" first="Llucia" last="Martí">Llucia Martí</name></country><country name="Espagne"><noRegion><name sortKey="Gernjak, Wolfgang" sort="Gernjak, Wolfgang" uniqKey="Gernjak W" first="Wolfgang" last="Gernjak">Wolfgang Gernjak</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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