Investigation of the release of PAHs from artificially contaminated sediments using cyclolipopeptidic biosurfactants.
Identifieur interne : 000399 ( Main/Exploration ); précédent : 000398; suivant : 000400Investigation of the release of PAHs from artificially contaminated sediments using cyclolipopeptidic biosurfactants.
Auteurs : F. Portet-Koltalo [France] ; M. T. Ammami [France] ; A. Benamar [France] ; H. Wang [France] ; F. Le Derf [France] ; C. Duclairoir-Poc [France]Source :
Abstract
Polycyclic aromatic hydrocarbons (PAHs) can be preponderant in contaminated sediments and understanding how they are sorbed in the different mineral and organic fractions of the sediment is critical for effective removal strategies. For this purpose, a mixture of seven PAHs was studied at the sediment/water interface and sorption isotherms were obtained. The influence of various factors on the sorption behavior of PAHs was evaluated, such as the nature of minerals, pH, ionic strength and amount of organic matter. Afterwards, the release of PAHs from the sediment by surfactants was investigated. The effectiveness of sodium dodecyl sulfate (SDS) was compared to natural biosurfactants, of cyclolipopeptidic type (amphisin and viscosin-like mixture), produced by two Pseudomonas fluorescens strains. The desorption of PAHs (from naphthalene to pyrene), from the highly retentive kaolinite fraction, could be favored by adding SDS or amphisin, but viscosin-like biosurfactants were only effective for 2-3 ring PAHs desorption (naphthalene to phenanthrene). Moreover, while SDS favors the release of all the target PAHs from a model sediment containing organic matter, the two biosurfactants tested were only effective to desorb the lowest molecular weight PAHs (naphthalene to fluorene).
Url:
DOI: 10.1016/j.jhazmat.2013.07.062
Affiliations:
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T." last="Ammami">M. T. 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Benamar</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-242311" status="INCOMING"><orgName>Laboratoire Ondes et Milieux Complexes</orgName><orgName type="acronym">UMR CNRS 6294 LOMC</orgName><desc><address><addrLine>53, rue de Prony, BP 540, 76058 Le Havre Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-lehavre.fr/recherche/lomc/</ref></desc><listRelation><relation active="#struct-300317" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-300317" type="direct"><org type="institution" xml:id="struct-300317" status="VALID"><orgName>Université du Havre</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Le Havre</settlement><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region></placeName><orgName type="university">Université du Havre</orgName></affiliation></author><author><name sortKey="Wang, H" sort="Wang, H" uniqKey="Wang H" first="H." last="Wang">H. Wang</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-242311" status="INCOMING"><orgName>Laboratoire Ondes et Milieux Complexes</orgName><orgName type="acronym">UMR CNRS 6294 LOMC</orgName><desc><address><addrLine>53, rue de Prony, BP 540, 76058 Le Havre Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-lehavre.fr/recherche/lomc/</ref></desc><listRelation><relation active="#struct-300317" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-300317" type="direct"><org type="institution" xml:id="struct-300317" status="VALID"><orgName>Université du Havre</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Le Havre</settlement><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region></placeName><orgName type="university">Université du Havre</orgName></affiliation></author><author><name sortKey="Le Derf, F" sort="Le Derf, F" uniqKey="Le Derf F" first="F." last="Le Derf">F. Le Derf</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-141329" status="VALID"><orgName>Chimie Organique et Bioorganique : Reactivité et Analyse</orgName><orgName type="acronym">COBRA</orgName><desc><address><addrLine>Rue Tesniere - 76821 - Mont Saint Aignan</addrLine><country key="FR"></country></address></desc><listRelation><relation active="#struct-301288" type="direct"></relation><relation active="#struct-301232" type="indirect"></relation><relation name="UMR6014" active="#struct-441569" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-301288" type="direct"><org type="department" xml:id="struct-301288" status="VALID"><orgName>Institut National des Sciences Appliquées - Rouen</orgName><orgName type="acronym">INSA Rouen</orgName><desc><address><country key="FR"></country></address></desc><listRelation><relation active="#struct-301232" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-301232" type="indirect"><org type="institution" xml:id="struct-301232" status="VALID"><orgName>Institut National des Sciences Appliquées</orgName><orgName type="acronym">INSA</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle name="UMR6014" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="ISNI">0000000122597504</idno><idno type="IdRef">02636817X</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Duclairoir Poc, C" sort="Duclairoir Poc, C" uniqKey="Duclairoir Poc C" first="C." last="Duclairoir-Poc">C. Duclairoir-Poc</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-211344" status="INCOMING"><orgName>Laboratoire de Microbiologie Signaux et Microenvironnement</orgName><orgName type="acronym">LMSM</orgName><desc><address><addrLine>55 rue Saint Germain 27000 Evreux</addrLine><country key="FR"></country></address></desc><listRelation><relation active="#struct-351601" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-351601" type="direct"><org type="institution" xml:id="struct-351601" status="INCOMING"><orgName>Université de Rouen-IUT Evreux</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author></analytic><idno type="DOI">10.1016/j.jhazmat.2013.07.062</idno></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Polycyclic aromatic hydrocarbons (PAHs) can be preponderant in contaminated sediments and understanding how they are sorbed in the different mineral and organic fractions of the sediment is critical for effective removal strategies. For this purpose, a mixture of seven PAHs was studied at the sediment/water interface and sorption isotherms were obtained. The influence of various factors on the sorption behavior of PAHs was evaluated, such as the nature of minerals, pH, ionic strength and amount of organic matter. Afterwards, the release of PAHs from the sediment by surfactants was investigated. The effectiveness of sodium dodecyl sulfate (SDS) was compared to natural biosurfactants, of cyclolipopeptidic type (amphisin and viscosin-like mixture), produced by two Pseudomonas fluorescens strains. The desorption of PAHs (from naphthalene to pyrene), from the highly retentive kaolinite fraction, could be favored by adding SDS or amphisin, but viscosin-like biosurfactants were only effective for 2-3 ring PAHs desorption (naphthalene to phenanthrene). Moreover, while SDS favors the release of all the target PAHs from a model sediment containing organic matter, the two biosurfactants tested were only effective to desorb the lowest molecular weight PAHs (naphthalene to fluorene).</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Haute-Normandie</li><li>Région Normandie</li></region><settlement><li>Le Havre</li></settlement><orgName><li>Université du Havre</li></orgName></list><tree><country name="France"><noRegion><name sortKey="Portet Koltalo, F" sort="Portet Koltalo, F" uniqKey="Portet Koltalo F" first="F." last="Portet-Koltalo">F. Portet-Koltalo</name></noRegion><name sortKey="Ammami, M T" sort="Ammami, M T" uniqKey="Ammami M" first="M. T." last="Ammami">M. T. Ammami</name><name sortKey="Benamar, A" sort="Benamar, A" uniqKey="Benamar A" first="A." last="Benamar">A. Benamar</name><name sortKey="Duclairoir Poc, C" sort="Duclairoir Poc, C" uniqKey="Duclairoir Poc C" first="C." last="Duclairoir-Poc">C. Duclairoir-Poc</name><name sortKey="Le Derf, F" sort="Le Derf, F" uniqKey="Le Derf F" first="F." last="Le Derf">F. Le Derf</name><name sortKey="Wang, H" sort="Wang, H" uniqKey="Wang H" first="H." last="Wang">H. Wang</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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