Inactivation of MS2 bacteriophage by streamer corona discharge in water
Identifieur interne : 001443 ( Main/Exploration ); précédent : 001442; suivant : 001444Inactivation of MS2 bacteriophage by streamer corona discharge in water
Auteurs : Changha Lee [Corée du Sud] ; Jaeeun Kim [Corée du Sud] ; Jeyong Yoon [Corée du Sud]Source :
- Chemosphere : (Oxford) [ 0045-6535 ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Pollution.
English descriptors
- KwdEn :
Abstract
Electrical discharge processes are emerging as water treatment technologies applicable to both the degradation of organic contaminants as well as inactivation of pathogens. Particularly as a disinfection technology, electrical discharge processes do not produce toxic byproducts, and effectively inactivate a wide spectrum of microorganisms by multiple lethal actions generated by the formation of plasma channels. This study demonstrates the inactivation of a virus using the streamer corona discharge process (SCDP) with MS2 phage as a surrogate. A rapid inactivation of MS2 phage (i.e., approximately 4 log inactivation in 5 min) was observed in all experimental runs conducted. Discharge conditions such as applied voltage and storage capacitance significantly affected the inactivation efficiency of MS2 phage, whereas the influence of water quality parameters was minor. In order to elucidate the mechanism of MS2 phage inactivation, potentially lethal factors that can be generated by the SCDP were selected, and their roles in the inactivation of MS2 phage were examined. As a result, effects of UV radiation, chemical oxidants, and pulsed electric fields were found to be insignificant. The shockwave generated upon plasma channel formation appears to be the most important factor responsible for MS2 phage inactivation.
Affiliations:
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Sud</country><wicri:noRegion>Yongin-si, Gyeonggi-do 446-712</wicri:noRegion></affiliation></author><author><name sortKey="Yoon, Jeyong" sort="Yoon, Jeyong" uniqKey="Yoon J" first="Jeyong" last="Yoon">Jeyong Yoon</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, College of Engineering, Seoul National University (SNU)</s1><s2>Seoul 151-742</s2><s3>KOR</s3><sZ>3 aut.</sZ></inist:fA14><country>Corée du Sud</country><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">11-0276544</idno><date when="2011">2011</date><idno type="stanalyst">PASCAL 11-0276544 INIST</idno><idno type="RBID">Pascal:11-0276544</idno><idno type="wicri:Area/PascalFrancis/Corpus">000012</idno><idno 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Sud</country><wicri:noRegion>Ulju-gun, Ulsan 698-805</wicri:noRegion></affiliation></author><author><name sortKey="Kim, Jaeeun" sort="Kim, Jaeeun" uniqKey="Kim J" first="Jaeeun" last="Kim">Jaeeun Kim</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Samsung Advanced Institute of Technology (SAIT), Mt. 14-1, Nongseo-dong, Giheung-gu</s1><s2>Yongin-si, Gyeonggi-do 446-712</s2><s3>KOR</s3><sZ>2 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Yongin-si, Gyeonggi-do 446-712</wicri:noRegion></affiliation></author><author><name sortKey="Yoon, Jeyong" sort="Yoon, Jeyong" uniqKey="Yoon J" first="Jeyong" last="Yoon">Jeyong Yoon</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, College of Engineering, Seoul National University (SNU)</s1><s2>Seoul 151-742</s2><s3>KOR</s3><sZ>3 aut.</sZ></inist:fA14><country>Corée du Sud</country><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Chemosphere : (Oxford)</title><title level="j" type="abbreviated">Chemosphere : (Oxf.)</title><idno type="ISSN">0045-6535</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Chemosphere : (Oxford)</title><title level="j" type="abbreviated">Chemosphere : (Oxf.)</title><idno type="ISSN">0045-6535</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biological contamination</term><term>Corona effect</term><term>Disinfection</term><term>Electric field</term><term>Metabolic inactivation</term><term>Microbiology</term><term>Organic compounds</term><term>Oxidant</term><term>Pathogenic</term><term>Phage MS2</term><term>Poison</term><term>Pollution</term><term>Ultraviolet radiation</term><term>Water quality</term><term>Water treatment</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Inactivation métabolique</term><term>Bactériophage MS2</term><term>Décharge couronne</term><term>Traitement eau</term><term>Composé organique</term><term>Pollution</term><term>Pathogène</term><term>Désinfection</term><term>Toxique</term><term>Qualité eau</term><term>Rayonnement UV</term><term>Oxydant</term><term>Champ électrique</term><term>Microbiologie</term><term>Contamination biologique</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Pollution</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Electrical discharge processes are emerging as water treatment technologies applicable to both the degradation of organic contaminants as well as inactivation of pathogens. Particularly as a disinfection technology, electrical discharge processes do not produce toxic byproducts, and effectively inactivate a wide spectrum of microorganisms by multiple lethal actions generated by the formation of plasma channels. This study demonstrates the inactivation of a virus using the streamer corona discharge process (SCDP) with MS2 phage as a surrogate. A rapid inactivation of MS2 phage (i.e., approximately 4 log inactivation in 5 min) was observed in all experimental runs conducted. Discharge conditions such as applied voltage and storage capacitance significantly affected the inactivation efficiency of MS2 phage, whereas the influence of water quality parameters was minor. In order to elucidate the mechanism of MS2 phage inactivation, potentially lethal factors that can be generated by the SCDP were selected, and their roles in the inactivation of MS2 phage were examined. As a result, effects of UV radiation, chemical oxidants, and pulsed electric fields were found to be insignificant. The shockwave generated upon plasma channel formation appears to be the most important factor responsible for MS2 phage inactivation.</div></front></TEI><affiliations><list><country><li>Corée du Sud</li></country><region><li>Région capitale de Séoul</li></region><settlement><li>Séoul</li></settlement></list><tree><country name="Corée du Sud"><noRegion><name sortKey="Lee, Changha" sort="Lee, Changha" uniqKey="Lee C" first="Changha" last="Lee">Changha Lee</name></noRegion><name sortKey="Kim, Jaeeun" sort="Kim, Jaeeun" uniqKey="Kim J" first="Jaeeun" last="Kim">Jaeeun Kim</name><name sortKey="Yoon, Jeyong" sort="Yoon, Jeyong" uniqKey="Yoon J" first="Jeyong" last="Yoon">Jeyong Yoon</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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