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KrCl and XeCl excilamps and LP-Hg lamp for UV and UV/H2O2 decolourization of dyes in water

dc.creatorAristizábal A.
dc.creatorPerilla G.
dc.creatorLara-Borrero J.A.
dc.creatorDiez R.
dc.date2020
dc.date.accessioned2021-02-05T14:58:21Z
dc.date.available2021-02-05T14:58:21Z
dc.identifier.issn9593330
dc.identifier.urihttp://hdl.handle.net/11407/5973
dc.descriptionIn the present study, the decolourization efficiencies of LP-Hg lamp, XeCl and KrCl excilamps at the same power density were compared for the decolourization of dyes in water by UV and UV/H2O2 processes in a batch reactor. Laboratory prototypes of XeCl and KrCl excilamps and a commercial LP-Hg lamp were studied as UV sources. Methylene Blue and Eliamine Blue dyes were used as model pollutants. The effect of the initial concentrations of dye and H2O2 in the TOC removal and kinetic parameters were also studied. The ratio of dye decolourization to the electric power consumption of the KrCl excilamp and LP-Hg lamp for the decolourization of Methylene Blue and Eliamine Blue were evaluated. As a result, the KrCl excilamp showed significantly higher decolourization efficiencies than LP-Hg lamp and XeCl excilamp, but the dye removal rate was significantly slower for Methylene Blue than for Eliamine Blue with this lamp. The KrCl lamp can be an alternative to conventional LP-Hg lamp for the decolourization of dyes by photodegradation, but it depends on the type of dye treated. The addition of H2O2 in a concentration between 0.05 and 0.09%v/v increases significantly the efficiency of the decolourization of Methylene Blue, and further increase does not lead to a higher increase in conversion. The experimental data were fitted to the one phase decay kinetic model with good agreement and the kinetic parameters were reported. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.
dc.language.isoeng
dc.publisherTaylor and Francis Ltd.
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85050350708&doi=10.1080%2f09593330.2018.1494755&partnerID=40&md5=2b5cca285e70727df762f3086f7311f3
dc.sourceEnvironmental Technology (United Kingdom)
dc.subjectAOPsspa
dc.subjectmercury-free lampsspa
dc.subjectMethylene Bluespa
dc.subjectPhotolysisspa
dc.subjectpower consumptionspa
dc.titleKrCl and XeCl excilamps and LP-Hg lamp for UV and UV/H2O2 decolourization of dyes in water
dc.typeArticleeng
dc.rights.accessrightsinfo:eu-repo/semantics/restrictedAccess
dc.publisher.programIngeniería Ambientalspa
dc.identifier.doi10.1080/09593330.2018.1494755
dc.subject.keywordcoloring agenteng
dc.subject.keywordhydrogen peroxideeng
dc.subject.keywordmercuryeng
dc.subject.keywordwatereng
dc.subject.keywordultraviolet radiationeng
dc.subject.keywordwater pollutanteng
dc.subject.keywordColoring Agentseng
dc.subject.keywordHydrogen Peroxideeng
dc.subject.keywordMercuryeng
dc.subject.keywordUltraviolet Rayseng
dc.subject.keywordWatereng
dc.subject.keywordWater Pollutants, Chemicaleng
dc.relation.citationvolume41
dc.relation.citationissue2
dc.relation.citationstartpage238
dc.relation.citationendpage250
dc.publisher.facultyFacultad de Ingenieríasspa
dc.affiliationAristizábal, A., Process Engineering Department, Universidad EAFIT, Medellín, Colombia, Environmental Engineering Department, Universidad de Medellín, Medellín, Colombia, Industrial Engineering Department, Pontificia Universidad Javeriana, Bogotá, Colombia
dc.affiliationPerilla, G., Electronics Engineering Department, Pontificia Universidad Javeriana, Bogotá, Colombia
dc.affiliationLara-Borrero, J.A., Civil Engineering Department, Pontificia Universidad Javeriana, Bogotá, Colombia
dc.affiliationDiez, R., Electronics Engineering Department, Pontificia Universidad Javeriana, Bogotá, Colombia
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