Fate of cyanobacteria in drinking water treatment plant lagoon supernatant and sludge.
Identifieur interne : 001E97 ( Main/Exploration ); précédent : 001E96; suivant : 001E98Fate of cyanobacteria in drinking water treatment plant lagoon supernatant and sludge.
Auteurs : Carlos J. Pestana [Australie] ; Petra J. Reeve [Australie] ; Emma Sawade [Australie] ; Camille F. Voldoire [France] ; Kelly Newton [Australie] ; Radisti Praptiwi [Australie] ; Lea Collingnon [France] ; Jennifer Dreyfus [Australie] ; Peter Hobson [Australie] ; Virginie Gaget [Australie] ; Gayle Newcombe [Australie]Source :
- The Science of the total environment [ 1879-1026 ] ; 2016.
Abstract
In conventional water treatment processes, where the coagulation and flocculation steps are designed to remove particles from drinking water, cyanobacteria are also concentrated into the resultant sludge. As a consequence, cyanobacteria-laden sludge can act as a reservoir for metabolites such as taste and odour compounds and cyanotoxins. This can pose a significant risk to water quality where supernatant from the sludge treatment facility is returned to the inlet to the plant. In this study the complex processes that can take place in a sludge treatment lagoon were investigated. It was shown that cyanobacteria can proliferate in the conditions manifest in a sludge treatment lagoon, and that cyanobacteria can survive and produce metabolites for at least 10days in sludge. The major processes of metabolite release and degradation are very dependent on the physical, chemical and biological environment in the sludge treatment facility and it was not possible to accurately model the net effect. For the first time evidence is provided to suggest that there is a greater risk associated with recycling sludge supernatant than can be estimated from the raw water quality, as metabolite concentrations increased by up to 500% over several days after coagulation, attributed to increased metabolite production and/or cell proliferation in the sludge.
DOI: 10.1016/j.scitotenv.2016.05.173
PubMed: 27265732
Affiliations:
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Pestana</name><affiliation wicri:level="1"><nlm:affiliation>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000</wicri:regionArea><wicri:noRegion>SA 5000</wicri:noRegion></affiliation></author><author><name sortKey="Reeve, Petra J" sort="Reeve, Petra J" uniqKey="Reeve P" first="Petra J" last="Reeve">Petra J. Reeve</name><affiliation wicri:level="1"><nlm:affiliation>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000</wicri:regionArea><wicri:noRegion>SA 5000</wicri:noRegion></affiliation></author><author><name sortKey="Sawade, Emma" sort="Sawade, Emma" uniqKey="Sawade E" first="Emma" last="Sawade">Emma Sawade</name><affiliation wicri:level="1"><nlm:affiliation>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000</wicri:regionArea><wicri:noRegion>SA 5000</wicri:noRegion></affiliation></author><author><name sortKey="Voldoire, Camille F" sort="Voldoire, Camille F" uniqKey="Voldoire C" first="Camille F" last="Voldoire">Camille F. Voldoire</name><affiliation wicri:level="1"><nlm:affiliation>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia; École Européenne de Chimie, Polymères et Matériaux (ECPM), Strasbourg 67087, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia; École Européenne de Chimie, Polymères et Matériaux (ECPM), Strasbourg 67087</wicri:regionArea><wicri:noRegion>67087</wicri:noRegion><placeName><settlement type="city">Strasbourg</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region></placeName></affiliation></author><author><name sortKey="Newton, Kelly" sort="Newton, Kelly" uniqKey="Newton K" first="Kelly" last="Newton">Kelly Newton</name><affiliation wicri:level="1"><nlm:affiliation>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000</wicri:regionArea><wicri:noRegion>SA 5000</wicri:noRegion></affiliation></author><author><name sortKey="Praptiwi, Radisti" sort="Praptiwi, Radisti" uniqKey="Praptiwi R" first="Radisti" last="Praptiwi">Radisti Praptiwi</name><affiliation wicri:level="1"><nlm:affiliation>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000</wicri:regionArea><wicri:noRegion>SA 5000</wicri:noRegion></affiliation></author><author><name sortKey="Collingnon, Lea" sort="Collingnon, Lea" uniqKey="Collingnon L" first="Lea" last="Collingnon">Lea Collingnon</name><affiliation wicri:level="1"><nlm:affiliation>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia; École Européenne de Chimie, Polymères et Matériaux (ECPM), Strasbourg 67087, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia; École Européenne de Chimie, Polymères et Matériaux (ECPM), Strasbourg 67087</wicri:regionArea><wicri:noRegion>67087</wicri:noRegion><placeName><settlement type="city">Strasbourg</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region></placeName></affiliation></author><author><name sortKey="Dreyfus, Jennifer" sort="Dreyfus, Jennifer" uniqKey="Dreyfus J" first="Jennifer" last="Dreyfus">Jennifer Dreyfus</name><affiliation wicri:level="1"><nlm:affiliation>Allwater, Adelaide Services Alliance, Wakefield St, Adelaide, SA 5001, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Allwater, Adelaide Services Alliance, Wakefield St, Adelaide, SA 5001</wicri:regionArea><wicri:noRegion>SA 5001</wicri:noRegion></affiliation></author><author><name sortKey="Hobson, Peter" sort="Hobson, Peter" uniqKey="Hobson P" first="Peter" last="Hobson">Peter Hobson</name><affiliation wicri:level="1"><nlm:affiliation>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000</wicri:regionArea><wicri:noRegion>SA 5000</wicri:noRegion></affiliation></author><author><name sortKey="Gaget, Virginie" sort="Gaget, Virginie" uniqKey="Gaget V" first="Virginie" last="Gaget">Virginie Gaget</name><affiliation wicri:level="1"><nlm:affiliation>University of Adelaide, Ecology and Environmental Sciences, School of Biological Sciences, Adelaide, SA 5005, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>University of Adelaide, Ecology and Environmental Sciences, School of Biological Sciences, Adelaide, SA 5005</wicri:regionArea><wicri:noRegion>SA 5005</wicri:noRegion></affiliation></author><author><name sortKey="Newcombe, Gayle" sort="Newcombe, Gayle" uniqKey="Newcombe G" first="Gayle" last="Newcombe">Gayle Newcombe</name><affiliation wicri:level="1"><nlm:affiliation>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000, Australia. Electronic address: gayle.newcombe@sawater.com.au.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Australian Water Quality Centre, South Australian Water Corporation, Adelaide, SA 5000</wicri:regionArea><wicri:noRegion>SA 5000</wicri:noRegion></affiliation></author></analytic><series><title level="j">The Science of the total environment</title><idno type="eISSN">1879-1026</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In conventional water treatment processes, where the coagulation and flocculation steps are designed to remove particles from drinking water, cyanobacteria are also concentrated into the resultant sludge. As a consequence, cyanobacteria-laden sludge can act as a reservoir for metabolites such as taste and odour compounds and cyanotoxins. This can pose a significant risk to water quality where supernatant from the sludge treatment facility is returned to the inlet to the plant. In this study the complex processes that can take place in a sludge treatment lagoon were investigated. It was shown that cyanobacteria can proliferate in the conditions manifest in a sludge treatment lagoon, and that cyanobacteria can survive and produce metabolites for at least 10days in sludge. The major processes of metabolite release and degradation are very dependent on the physical, chemical and biological environment in the sludge treatment facility and it was not possible to accurately model the net effect. For the first time evidence is provided to suggest that there is a greater risk associated with recycling sludge supernatant than can be estimated from the raw water quality, as metabolite concentrations increased by up to 500% over several days after coagulation, attributed to increased metabolite production and/or cell proliferation in the sludge.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Alsace (région administrative)</li><li>Grand Est</li></region><settlement><li>Strasbourg</li></settlement></list><tree><country name="Australie"><noRegion><name sortKey="Pestana, Carlos J" sort="Pestana, Carlos J" uniqKey="Pestana C" first="Carlos J" last="Pestana">Carlos J. Pestana</name></noRegion><name sortKey="Dreyfus, Jennifer" sort="Dreyfus, Jennifer" uniqKey="Dreyfus J" first="Jennifer" last="Dreyfus">Jennifer Dreyfus</name><name sortKey="Gaget, Virginie" sort="Gaget, Virginie" uniqKey="Gaget V" first="Virginie" last="Gaget">Virginie Gaget</name><name sortKey="Hobson, Peter" sort="Hobson, Peter" uniqKey="Hobson P" first="Peter" last="Hobson">Peter Hobson</name><name sortKey="Newcombe, Gayle" sort="Newcombe, Gayle" uniqKey="Newcombe G" first="Gayle" last="Newcombe">Gayle Newcombe</name><name sortKey="Newton, Kelly" sort="Newton, Kelly" uniqKey="Newton K" first="Kelly" last="Newton">Kelly Newton</name><name sortKey="Praptiwi, Radisti" sort="Praptiwi, Radisti" uniqKey="Praptiwi R" first="Radisti" last="Praptiwi">Radisti Praptiwi</name><name sortKey="Reeve, Petra J" sort="Reeve, Petra J" uniqKey="Reeve P" first="Petra J" last="Reeve">Petra J. Reeve</name><name sortKey="Sawade, Emma" sort="Sawade, Emma" uniqKey="Sawade E" first="Emma" last="Sawade">Emma Sawade</name></country><country name="France"><region name="Grand Est"><name sortKey="Voldoire, Camille F" sort="Voldoire, Camille F" uniqKey="Voldoire C" first="Camille F" last="Voldoire">Camille F. Voldoire</name></region><name sortKey="Collingnon, Lea" sort="Collingnon, Lea" uniqKey="Collingnon L" first="Lea" last="Collingnon">Lea Collingnon</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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