Physico-chemical pretreatment to seawater reverse osmosis (SWRO): organic characterization and membrane autopsy
Identifieur interne : 008164 ( Main/Exploration ); précédent : 008163; suivant : 008165Physico-chemical pretreatment to seawater reverse osmosis (SWRO): organic characterization and membrane autopsy
Auteurs : H. K. Shon [Australie] ; S. Vigneswaran [Australie] ; M. H. Zareie [Australie] ; R. Ben Aim [France] ; E. Lee [Corée du Sud] ; J. Lee [Corée du Sud] ; J. Cho [Corée du Sud] ; In S. Kim [Corée du Sud]Source :
- Desalination : (Amsterdam) [ 0011-9164 ] ; 2009.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
In this study, different pretreatment methods such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), powdered activated carbon (PAC) adsorption and ferric chloride (FeCl3) flocculation were evaluated in terms of their capability in removing seawater organic matter (SWOM) and the characteristics of the foulants on the seawater reverse osmosis (SWRO) membranes. A detailed experiment with a crossflow SWRO filtration unit was conducted with SR membrane (MWCO 100 Da) at 60 bar with seawater (conductivity = 48.9 mS/cm) drawn from south-western Korea. The SWOM removal by UF, NF, PAC adsorption and FeCl3 flocculation was 20.3, 28.9, 46 and 23.3%, respectively. SWOM used in this study predominantly consisted of small size organic matter (<1000 Da). A large amount of the hydrophobic fraction present in SWOM was removed by PAC adsorption. The SDI5min significantly decreased from 12.7 (without any pretreatment) to 3.2 (MF), 1.3 (UF), 1.0 (NF) and 4.4 (PAC adsorption). RO filtration of seawater with and without pretreatment showed significant flux decline (normalized flux decline (J/J0) = 0.17 ± 0.02) within 20-h operation. The elemental analyses made on the RO surface after direct RO filtration showed that the relative fraction of the carbon decreased, while sodium (Na), magnesium (Mg), chlorine (Cl) and iron (Fe) elements were found in the foulants extracted from the fouled membrane surface. The average roughness of the clean membrane surface was 41.5 nm. After MF and UF pretreatment, the roughness slightly increased to 54.8 and 55.6 nm, respectively. On the other hand, without any pretreatment, with PAC adsorption and with FeCl3 flocculation, the roughness increased up to 69.7, 66.4 and 110 nm, respectively. It can be concluded that the pretreatment by MF and UF could relatively preserve the RO membrane surface.
Affiliations:
- Australie, Corée du Sud, France
- Midi-Pyrénées, Nouvelle-Galles du Sud, Occitanie (région administrative)
- Sydney, Toulouse
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Ben Aim</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Institute National des Sciences Appliquees, Complexe Scientifique de Rangueil</s1><s2>31077 Toulouse</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Midi-Pyrénées</region><settlement type="city">Toulouse</settlement></placeName></affiliation></author><author><name sortKey="Lee, E" sort="Lee, E" uniqKey="Lee E" first="E." last="Lee">E. Lee</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Environmental Science and Technology, Gwangju Institute of Science and Technology</s1><s2>Gwangju</s2><s3>KOR</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Gwangju</wicri:noRegion></affiliation></author><author><name sortKey="Lee, J" sort="Lee, J" uniqKey="Lee J" first="J." last="Lee">J. 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Kim</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Environmental Science and Technology, Gwangju Institute of Science and Technology</s1><s2>Gwangju</s2><s3>KOR</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Gwangju</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">09-0150389</idno><date when="2009">2009</date><idno type="stanalyst">PASCAL 09-0150389 INIST</idno><idno type="RBID">Pascal:09-0150389</idno><idno type="wicri:Area/PascalFrancis/Corpus">002F05</idno><idno type="wicri:Area/PascalFrancis/Curation">003114</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">002935</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">002935</idno><idno type="wicri:doubleKey">0011-9164:2009:Shon H:physico:chemical:pretreatment</idno><idno type="wicri:Area/Main/Merge">008904</idno><idno type="wicri:Area/Main/Curation">008164</idno><idno type="wicri:Area/Main/Exploration">008164</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Physico-chemical pretreatment to seawater reverse osmosis (SWRO): organic characterization and membrane autopsy</title><author><name sortKey="Shon, H K" sort="Shon, H K" uniqKey="Shon H" first="H. K." last="Shon">H. K. Shon</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Faculty of Engineering/Science, University of Technology</s1><s2>Sydney</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Australie</country><placeName><settlement type="city">Sydney</settlement><region type="état">Nouvelle-Galles du Sud</region></placeName></affiliation></author><author><name sortKey="Vigneswaran, S" sort="Vigneswaran, S" uniqKey="Vigneswaran S" first="S." last="Vigneswaran">S. Vigneswaran</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Faculty of Engineering/Science, University of Technology</s1><s2>Sydney</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Australie</country><placeName><settlement type="city">Sydney</settlement><region type="état">Nouvelle-Galles du Sud</region></placeName></affiliation></author><author><name sortKey="Zareie, M H" sort="Zareie, M H" uniqKey="Zareie M" first="M. H." last="Zareie">M. H. Zareie</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Faculty of Engineering/Science, University of Technology</s1><s2>Sydney</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Australie</country><placeName><settlement type="city">Sydney</settlement><region type="état">Nouvelle-Galles du Sud</region></placeName></affiliation></author><author><name sortKey="Ben Aim, R" sort="Ben Aim, R" uniqKey="Ben Aim R" first="R." last="Ben Aim">R. Ben Aim</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Institute National des Sciences Appliquees, Complexe Scientifique de Rangueil</s1><s2>31077 Toulouse</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Midi-Pyrénées</region><settlement type="city">Toulouse</settlement></placeName></affiliation></author><author><name sortKey="Lee, E" sort="Lee, E" uniqKey="Lee E" first="E." last="Lee">E. Lee</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Environmental Science and Technology, Gwangju Institute of Science and Technology</s1><s2>Gwangju</s2><s3>KOR</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Gwangju</wicri:noRegion></affiliation></author><author><name sortKey="Lee, J" sort="Lee, J" uniqKey="Lee J" first="J." last="Lee">J. Lee</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Environmental Science and Technology, Gwangju Institute of Science and Technology</s1><s2>Gwangju</s2><s3>KOR</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Gwangju</wicri:noRegion></affiliation></author><author><name sortKey="Cho, J" sort="Cho, J" uniqKey="Cho J" first="J." last="Cho">J. Cho</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Environmental Science and Technology, Gwangju Institute of Science and Technology</s1><s2>Gwangju</s2><s3>KOR</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Gwangju</wicri:noRegion></affiliation></author><author><name sortKey="Kim, In S" sort="Kim, In S" uniqKey="Kim I" first="In S." last="Kim">In S. Kim</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Environmental Science and Technology, Gwangju Institute of Science and Technology</s1><s2>Gwangju</s2><s3>KOR</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Gwangju</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Desalination : (Amsterdam)</title><title level="j" type="abbreviated">Desalination : (Amst.)</title><idno type="ISSN">0011-9164</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Desalination : (Amsterdam)</title><title level="j" type="abbreviated">Desalination : (Amst.)</title><idno type="ISSN">0011-9164</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Activated carbon</term><term>Adsorption</term><term>Crossflow</term><term>Desalination</term><term>Elementary analysis</term><term>Extract</term><term>Filtration</term><term>Flocculation</term><term>Fouling</term><term>Iron III Chlorides</term><term>Membrane separation</term><term>Microfiltration</term><term>Nanofiltration</term><term>Organic matter</term><term>Powder</term><term>Pretreatment</term><term>Reverse osmosis</term><term>Roughness</term><term>Seawater</term><term>Ultrafiltration</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Prétraitement</term><term>Eau mer</term><term>Osmose inverse</term><term>Séparation par membrane</term><term>Microfiltration</term><term>Ultrafiltration</term><term>Nanofiltration</term><term>Poudre</term><term>Charbon actif</term><term>Adsorption</term><term>Fer III Chlorure</term><term>Floculation</term><term>Matière organique</term><term>Ecoulement croisé</term><term>Filtration</term><term>Analyse élémentaire</term><term>Extrait</term><term>Encrassement</term><term>Rugosité</term><term>Dessalement</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this study, different pretreatment methods such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), powdered activated carbon (PAC) adsorption and ferric chloride (FeCl<sub>3</sub>) flocculation were evaluated in terms of their capability in removing seawater organic matter (SWOM) and the characteristics of the foulants on the seawater reverse osmosis (SWRO) membranes. A detailed experiment with a crossflow SWRO filtration unit was conducted with SR membrane (MWCO 100 Da) at 60 bar with seawater (conductivity = 48.9 mS/cm) drawn from south-western Korea. The SWOM removal by UF, NF, PAC adsorption and FeCl<sub>3</sub> flocculation was 20.3, 28.9, 46 and 23.3%, respectively. SWOM used in this study predominantly consisted of small size organic matter (<1000 Da). A large amount of the hydrophobic fraction present in SWOM was removed by PAC adsorption. The SDI<sub>5min</sub> significantly decreased from 12.7 (without any pretreatment) to 3.2 (MF), 1.3 (UF), 1.0 (NF) and 4.4 (PAC adsorption). RO filtration of seawater with and without pretreatment showed significant flux decline (normalized flux decline (J/J<sub>0</sub>) = 0.17 ± 0.02) within 20-h operation. The elemental analyses made on the RO surface after direct RO filtration showed that the relative fraction of the carbon decreased, while sodium (Na), magnesium (Mg), chlorine (Cl) and iron (Fe) elements were found in the foulants extracted from the fouled membrane surface. The average roughness of the clean membrane surface was 41.5 nm. After MF and UF pretreatment, the roughness slightly increased to 54.8 and 55.6 nm, respectively. On the other hand, without any pretreatment, with PAC adsorption and with FeCl<sub>3</sub> flocculation, the roughness increased up to 69.7, 66.4 and 110 nm, respectively. It can be concluded that the pretreatment by MF and UF could relatively preserve the RO membrane surface.</div></front></TEI><affiliations><list><country><li>Australie</li><li>Corée du Sud</li><li>France</li></country><region><li>Midi-Pyrénées</li><li>Nouvelle-Galles du Sud</li><li>Occitanie (région administrative)</li></region><settlement><li>Sydney</li><li>Toulouse</li></settlement></list><tree><country name="Australie"><region name="Nouvelle-Galles du Sud"><name sortKey="Shon, H K" sort="Shon, H K" uniqKey="Shon H" first="H. K." last="Shon">H. K. Shon</name></region><name sortKey="Vigneswaran, S" sort="Vigneswaran, S" uniqKey="Vigneswaran S" first="S." last="Vigneswaran">S. Vigneswaran</name><name sortKey="Zareie, M H" sort="Zareie, M H" uniqKey="Zareie M" first="M. H." last="Zareie">M. H. Zareie</name></country><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Ben Aim, R" sort="Ben Aim, R" uniqKey="Ben Aim R" first="R." last="Ben Aim">R. Ben Aim</name></region></country><country name="Corée du Sud"><noRegion><name sortKey="Lee, E" sort="Lee, E" uniqKey="Lee E" first="E." last="Lee">E. Lee</name></noRegion><name sortKey="Cho, J" sort="Cho, J" uniqKey="Cho J" first="J." last="Cho">J. Cho</name><name sortKey="Kim, In S" sort="Kim, In S" uniqKey="Kim I" first="In S." last="Kim">In S. Kim</name><name sortKey="Lee, J" sort="Lee, J" uniqKey="Lee J" first="J." last="Lee">J. Lee</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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