Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/46345
DC FieldValueLanguage
dc.contributor.authorHerrera-Melián, J. A.en_US
dc.contributor.authorTello Rendón, E.en_US
dc.contributor.authorDoña Rodríguez, J. M.en_US
dc.contributor.authorViera Suárez, A.en_US
dc.contributor.authorValdés Do Campo, C.en_US
dc.contributor.authorPérez Peña, J.en_US
dc.contributor.authorAraña Mesa, J.en_US
dc.contributor.otherHerrera-Melian, Jose-
dc.contributor.otherArana Mesa, Javier-
dc.contributor.otherDona Rodriguez, Jose Miguel-
dc.date.accessioned2018-11-23T03:42:21Z-
dc.date.available2018-11-23T03:42:21Z-
dc.date.issued2000en_US
dc.identifier.issn0043-1354en_US
dc.identifier.urihttp://hdl.handle.net/10553/46345-
dc.description.abstractIn this paper we present the results of the application of conventional and photocatalytic methods for the treatment of hazardous laboratory wastes. Liquid wastes from the spectrophotometric determination of NH+4 as indophenol have been chosen as model samples. The waste composition is rather heterogeneous, as phenol, ethanol, nitroprusside and citrate can be found, among others. High organic carbon contents (thousands of ppm) are found, part of which is volatile organic carbon (VOC) up to 68%. Three different photocatalytic methods have been tested: TiO2-photocatalysis, photoFenton reaction and the combination of H2O2-UV light. The degradation process was monitored by Total Organic Carbon (TOC) reduction. The effect of experimental parameters, such as pH and TiO2, H2O2 and Fe2+ concentrations, has been investigated. The strongest TOC reduction was achieved employing the photoFenton reaction with 2.5 mM Fe2+ and 8 mM H2O2. The effect of solar TiO2-photocatalysis and the photoFenton reaction was also studied. TOC reductions of 76.6 and 46.8% were achieved by the photoFenton reaction and TiO2-photocatalysis, respectively. The mineralization of individual components of the samples: nitroprusside, phenol and citrate (1000 ppm of C) was also attempted by KMnO4 and the three photomethods. Nitroprusside was the most resistant component to be mineralized. PhotoFenton and the combination of H2O2–UV light gave the best results for nitroprusside degradation. Due to the high TOC content of the samples, an oxidative pretreatment with KMnO4 before the photocatalytic treatment was also investigated. KMnO4 pretreatment gave reductions of initial TOC as high as 90% and VOC reductions from 30 to 77%. The remaining solution must be treated with KMnO4 if the photocatalytic methods are to be applied later. If the sample is not previously treated with KMnO4, not one of the photomethods tested is able to reduce the remaining non-purgeable (NPOC) organic carbon of the sample. This suggests that KMnO4 oxidizes the organic pollutants to other organics compounds that can be more readily mineralized by photodegradation. The recommended method for the treatment of these wastes consists of a pretreatment with KMnO4, followed by the photocatalytic treatment by means of photoFenton reaction.en_US
dc.languageengen_US
dc.publisher0043-1354-
dc.relation.ispartofWater Researchen_US
dc.sourceWater Research [ISSN 0043-1354], v. 34(16), p. 3967-3976, (Noviembre 2020)en_US
dc.subject330301 Tecnología de la catálisisen_US
dc.subject.otherWateren_US
dc.subject.otherHazardous wastesen_US
dc.subject.otherPotassium permanganateen_US
dc.subject.otherPhotocatalysisen_US
dc.subject.otherPphotoFentonen_US
dc.subject.otherSolar lighten_US
dc.titleIncidence of pretreatment by potassium permanganate on hazardous laboratory wastes photodegradabilityen_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/S0043-1354(00)00146-9en_US
dc.identifier.scopus0034333658-
dc.identifier.isi000089806300008-
dcterms.isPartOfWater Research-
dcterms.sourceWater Research[ISSN 0043-1354],v. 34 (16), p. 3967-3976-
dc.contributor.authorscopusid55666370900-
dc.contributor.authorscopusid6602445453-
dc.contributor.authorscopusid6701567121-
dc.contributor.authorscopusid6505932214-
dc.contributor.authorscopusid6507784955-
dc.contributor.authorscopusid7004839316-
dc.contributor.authorscopusid7005207158-
dc.description.lastpage3976en_US
dc.description.firstpage3967en_US
dc.relation.volume34en_US
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.identifier.wosWOS:000089806300008-
dc.contributor.daisngid1634328-
dc.contributor.daisngid5556548-
dc.contributor.daisngid3310427-
dc.contributor.daisngid2293971-
dc.contributor.daisngid329547-
dc.contributor.daisngid10671403-
dc.contributor.daisngid8758382-
dc.contributor.daisngid760506-
dc.contributor.daisngid11090994-
dc.identifier.investigatorRIDL-5180-2014-
dc.identifier.investigatorRIDK-8643-2014-
dc.identifier.investigatorRIDNo ID-
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Herrera-Melian, JA-
dc.contributor.wosstandardWOS:Rendon, ET-
dc.contributor.wosstandardWOS:Rodriguez, JMD-
dc.contributor.wosstandardWOS:Suarez, AV-
dc.contributor.wosstandardWOS:Do Campo, CV-
dc.contributor.wosstandardWOS:Pena, JP-
dc.contributor.wosstandardWOS:Mesa, JA-
dc.date.coverdateNoviembre 2000en_US
dc.identifier.ulpgcen_US
dc.contributor.buulpgcBU-BASen_US
dc.description.jcr1,285
dc.description.jcrqQ1
dc.description.scieSCIE
item.fulltextSin texto completo-
item.grantfulltextnone-
crisitem.author.deptGIR IUNAT: Fotocatálisis y espectroscopía para aplicaciones medioambientales.-
crisitem.author.deptIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.deptDepartamento de Química-
crisitem.author.deptGIR IUNAT: Fotocatálisis y espectroscopía para aplicaciones medioambientales.-
crisitem.author.deptIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.deptDepartamento de Química-
crisitem.author.deptGIR IUNAT: Fotocatálisis y espectroscopía para aplicaciones medioambientales.-
crisitem.author.deptIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.deptGIR IUNAT: Fotocatálisis y espectroscopía para aplicaciones medioambientales.-
crisitem.author.deptIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.deptDepartamento de Química-
crisitem.author.orcid0000-0002-2466-6531-
crisitem.author.orcid0000-0003-3604-1544-
crisitem.author.orcid0000-0003-1889-2281-
crisitem.author.orcid0000-0002-5551-029X-
crisitem.author.parentorgIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.parentorgIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.parentorgIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.parentorgIU de Estudios Ambientales y Recursos Naturales-
crisitem.author.fullNameHerrera Melián, José Alberto-
crisitem.author.fullNameTello Rendón, Erick Danilo-
crisitem.author.fullNameDoña Rodríguez, José Miguel-
crisitem.author.fullNamePérez Peña,Jesús-
crisitem.author.fullNameAraña Mesa, Francisco Javier-
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