LrgpV1, Main, Exploration, bibRecord, 000557

Dynamic Assessment of the Floc Morphology, Bacterial Diversity, and Integron Content of an Activated Sludge Reactor Processing Hospital Effluent

Identifieur interne : 000557 ( Main/Exploration ); précédent : 000556; suivant : 000558

Dynamic Assessment of the Floc Morphology, Bacterial Diversity, and Integron Content of an Activated Sludge Reactor Processing Hospital Effluent

Auteurs : Thibault Stalder [France] ; Mousaab Alrhmoun [France] ; Jean-Noel Louvet ; Magali Casellas [France] ; Corinne Maftah [France] ; Claire Carrion [France] ; Marie-Noëlle Pons [France] ; Ole Pahl ; Marie-Cécile Ploy [France] ; Christophe Dagot [France]

Source :

Environmental Science and Technology [ 0013-936X ] ; 2013-07.

RBID : Hal:hal-01282095

Abstract

The treatment of hospital effluents (HE) is a major concern, as they are suspected of disseminating drugs and antibiotic resistance determinants in the environment. In order to assess HE influence on wastewater treatment plant biomass, lab-scale conventional activated sludge systems (CAS) were continuously fed with real HE or urban effluent as a control. To gain insights into the main hurdles linked to HE treatment, we conducted a multiparameter study using classical physicochemical characterization, phase contrast and confocal laser scaning microscopy, and molecular biology (i.e., pyrosequencing) tools. HE caused erosion of floc structure and the production of extracellular polymeric substances attributed to the development of floc-forming bacteria. Adaptation of the sludge bacterial community to the HE characteristics, thus maintaining the purification performance of the biomass, was observed. Finally, the comparative metagenomic analysis of the CAS showed that HE treatment resulted in an increase of class 1 resistance integrons (RIs) and the introduction of Pseudomonas spp. into the bacterial community. HE treatment did not reduce the CAS process performance; nevertheless it increases the risk of dissemination into the environment of bacterial species and genetic determinants (RIs) involved in antibiotic resistance acquisition.

Url:

https://hal.univ-lorraine.fr/hal-01282095

DOI: 10.1021/es4008646

Affiliations:

Links toward previous steps (curation, corpus...)

to stream Hal, to step Corpus: 000361
to stream Hal, to step Curation: 000361
to stream Hal, to step Checkpoint: 000537
to stream Main, to step Merge: 000593
to stream Main, to step Curation: 000557

Le document en format XML

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<author><name sortKey="Carrion, Claire" sort="Carrion, Claire" uniqKey="Carrion C" first="Claire" last="Carrion">Claire Carrion</name>
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<country>France</country>
<placeName><settlement type="city">Limoges</settlement>
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<orgName type="university">Université de Limoges</orgName>
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</author>
<author><name sortKey="Pons, Marie Noelle" sort="Pons, Marie Noelle" uniqKey="Pons M" first="Marie-Noëlle" last="Pons">Marie-Noëlle Pons</name>
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<desc><address><addrLine>Université de Lorraine - ENSIC, 1 rue de Grandville BP 20451, 54001 Nancy Cedex</addrLine>
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<country>France</country>
<placeName><settlement type="city">Nancy</settlement>
<settlement type="city">Metz</settlement>
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<orgName type="university">Université de Lorraine</orgName>
<placeName><settlement type="city">Nancy</settlement>
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<region type="region" nuts="2">Lorraine (région)</region>
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</author>
<author><name sortKey="Pahl, Ole" sort="Pahl, Ole" uniqKey="Pahl O" first="Ole" last="Pahl">Ole Pahl</name>
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<author><name sortKey="Ploy, Marie Cecile" sort="Ploy, Marie Cecile" uniqKey="Ploy M" first="Marie-Cécile" last="Ploy">Marie-Cécile Ploy</name>
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<desc><address><addrLine>Université de Limoges - Faculté de Médecine - 2 rue du Docteur Marcland 87025 Limoges Cedex</addrLine>
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<desc><address><addrLine>Université de Limoges - Faculté de Médecine - 2 rue du Dr Marcland 87025 Limoges cedex</addrLine>
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<country>France</country>
<placeName><settlement type="city">Limoges</settlement>
<region type="region" nuts="2">Limousin</region>
</placeName>
<orgName type="university">Université de Limoges</orgName>
</affiliation>
</author>
<author><name sortKey="Dagot, Christophe" sort="Dagot, Christophe" uniqKey="Dagot C" first="Christophe" last="Dagot">Christophe Dagot</name>
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<idno type="RNSR">200815559G</idno>
<orgName>Groupement de Recherche Eau, Sol, Environnement</orgName>
<orgName type="acronym">GRESE</orgName>
<date type="start">2008-01-01</date>
<desc><address><addrLine>Faculté des sciences et techniques 123 Avenue Albert THOMAS 87060 LIMOGES</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.unilim.fr/filiere-eau/</ref>
</desc>
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<orgName>Université de Limoges</orgName>
<orgName type="acronym">UNILIM</orgName>
<date type="start">1968-10-01</date>
<desc><address><addrLine>33 rue François Mitterrand BP23204 87032 Limoges</addrLine>
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<ref type="url">http://www.unilim.fr</ref>
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</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Limoges</settlement>
<region type="region" nuts="2">Limousin</region>
</placeName>
<orgName type="university">Université de Limoges</orgName>
</affiliation>
</author>
</analytic>
<idno type="DOI">10.1021/es4008646</idno>
<series><title level="j">Environmental Science and Technology</title>
<idno type="ISSN">0013-936X</idno>
<imprint><date type="datePub">2013-07</date>
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<front><div type="abstract" xml:lang="en">The treatment of hospital effluents (HE) is a major concern, as they are suspected of disseminating drugs and antibiotic resistance determinants in the environment. In order to assess HE influence on wastewater treatment plant biomass, lab-scale conventional activated sludge systems (CAS) were continuously fed with real HE or urban effluent as a control. To gain insights into the main hurdles linked to HE treatment, we conducted a multiparameter study using classical physicochemical characterization, phase contrast and confocal laser scaning microscopy, and molecular biology (i.e., pyrosequencing) tools. HE caused erosion of floc structure and the production of extracellular polymeric substances attributed to the development of floc-forming bacteria. Adaptation of the sludge bacterial community to the HE characteristics, thus maintaining the purification performance of the biomass, was observed. Finally, the comparative metagenomic analysis of the CAS showed that HE treatment resulted in an increase of class 1 resistance integrons (RIs) and the introduction of Pseudomonas spp. into the bacterial community. HE treatment did not reduce the CAS process performance; nevertheless it increases the risk of dissemination into the environment of bacterial species and genetic determinants (RIs) involved in antibiotic resistance acquisition.</div>
</front>
</TEI>
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</country>
<region><li>Grand Est</li>
<li>Limousin</li>
<li>Lorraine (région)</li>
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<settlement><li>Limoges</li>
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<li>Nancy</li>
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<orgName><li>Centre national de la recherche scientifique</li>
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</list>
<tree><noCountry><name sortKey="Louvet, Jean Noel" sort="Louvet, Jean Noel" uniqKey="Louvet J" first="Jean-Noel" last="Louvet">Jean-Noel Louvet</name>
<name sortKey="Pahl, Ole" sort="Pahl, Ole" uniqKey="Pahl O" first="Ole" last="Pahl">Ole Pahl</name>
</noCountry>
<country name="France"><region name="Limousin"><name sortKey="Stalder, Thibault" sort="Stalder, Thibault" uniqKey="Stalder T" first="Thibault" last="Stalder">Thibault Stalder</name>
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<name sortKey="Alrhmoun, Mousaab" sort="Alrhmoun, Mousaab" uniqKey="Alrhmoun M" first="Mousaab" last="Alrhmoun">Mousaab Alrhmoun</name>
<name sortKey="Carrion, Claire" sort="Carrion, Claire" uniqKey="Carrion C" first="Claire" last="Carrion">Claire Carrion</name>
<name sortKey="Casellas, Magali" sort="Casellas, Magali" uniqKey="Casellas M" first="Magali" last="Casellas">Magali Casellas</name>
<name sortKey="Dagot, Christophe" sort="Dagot, Christophe" uniqKey="Dagot C" first="Christophe" last="Dagot">Christophe Dagot</name>
<name sortKey="Maftah, Corinne" sort="Maftah, Corinne" uniqKey="Maftah C" first="Corinne" last="Maftah">Corinne Maftah</name>
<name sortKey="Ploy, Marie Cecile" sort="Ploy, Marie Cecile" uniqKey="Ploy M" first="Marie-Cécile" last="Ploy">Marie-Cécile Ploy</name>
<name sortKey="Pons, Marie Noelle" sort="Pons, Marie Noelle" uniqKey="Pons M" first="Marie-Noëlle" last="Pons">Marie-Noëlle Pons</name>
</country>
</tree>
</affiliations>
</record>

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Dynamic Assessment of the Floc Morphology, Bacterial Diversity, and Integron Content of an Activated Sludge Reactor Processing Hospital Effluent

Dynamic Assessment of the Floc Morphology, Bacterial Diversity, and Integron Content of an Activated Sludge Reactor Processing Hospital Effluent

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