Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/46319
Campo DC Valoridioma
dc.contributor.authorMelián, J. A.Herreraen_US
dc.contributor.authorAraña, J.en_US
dc.contributor.authorOrtega Méndez, José Alejandroen_US
dc.contributor.authorMartín Muñoz, Francisco Joséen_US
dc.contributor.authorRendón, E. Telloen_US
dc.contributor.authorPeña, J. Pérezen_US
dc.contributor.otherArana Mesa, Javier-
dc.date.accessioned2018-11-23T03:28:15Z-
dc.date.available2018-11-23T03:28:15Z-
dc.date.issued2008en_US
dc.identifier.issn0199-6231en_US
dc.identifier.urihttp://hdl.handle.net/10553/46319-
dc.description.abstractPhenol and phenol compounds are toxic organics that can be found in many industrial wastewaters. Biological wastewater treatments are considered to be the most convenient methods owing to their efficiency and low economic cost. Nonetheless, many organic pollutants are refractory to bacterial degradation. Photocatalytic methods can be an interesting alternative as pretreatment to improve biodegradability and reduce toxicity of industrial effluents. The goal of this study was to compare and combine TiO2-photocatalysis with constructed wetlands to obtain a low-cost method for the treatment of phenolic wastewater. The degradation of phenol was studied by means of TiO2-photocatalysis (solar and UV-lamp) in batch reactors. The degradations of phenol and two of its photocatalytic degradation intermediates, catechol and hydroquinone, were studied in wetland reactors with and without two wetland plants: common reed (Phragmites australis) and papyrus (Cyperus alternifolius). The application of pseudo first-order kinetics to the elimination of phenol in the wetland reactors provided high correlation coefficients (R2=0.85–0.99)⁠, allowing the comparison of the biological and photocatalytic methods. Although higher concentrations of phenol (250–400mg∕l) could be treated, the elimination of 50ppm was usually accomplished in batch experiments in less than15h⁠, the time in which low or nil solar radiation is available for TiO2-photocatalysis. As a consequence, this concentration can be considered to be the upper limit for the wetland influent. The degradations of catechol and hydroquinone showed higher rate constants (0.2–0.4h−1) than that of phenol (about 0.15h−1⁠), particularly in the reactor with common reed(1–2h−1)⁠. The degradation of phenol by the photocatalytic methods was three to four times faster than those obtained with the wetland reactors. By using solar TiO2-photocatalysis, concentrations of phenol up to 100ppm were reduced down to 16ppm and 27ppm of phenol and hydroquinone, respectively, in about 7h⁠. However, it was toxic. When this sample was continuously (38mmin) added to wetland reactors with common reed, phenol and hydroquinone concentrations were below their detection limits (⁠1ppm and 2ppm⁠, respectively). SolarTiO2-photocatalysis is a promising technique for the treatment of phenol but its application is limited to daytime periods with appropriate weather conditions. Constructed wetlands can also eliminate phenol and phenolic compounds without these limitations, but the toxicity of the influent must be as low as possible. The combination of both methods can provide a low-cost method for the treatment of phenolic wastewater.en_US
dc.languageengen_US
dc.publisher0199-6231en_US
dc.relation.ispartofJournal of Solar Energy Engineering, Transactions of the ASMEen_US
dc.sourceJournal of Solar Energy Engineering, Transactions of the ASME [ISSN 0199-6231], v. 130, p. 0410031-0410037en_US
dc.subject330301 Tecnología de la catálisisen_US
dc.subject330810 Tecnología de aguas residualesen_US
dc.subject.otherChemical reactorsen_US
dc.subject.otherIndustrial wasteen_US
dc.subject.otherWastewater treatmenten_US
dc.subject.otherPhenolen_US
dc.subject.otherCatecholen_US
dc.subject.otherHydroquinoneen_US
dc.subject.otherToxicityen_US
dc.subject.otherTiO2-photocatalysisen_US
dc.subject.otherWetland reactorsen_US
dc.titleComparative study of phenolics degradation between biological and photocatalytic systemsen_US
dc.typeinfo:eu-repo/semantics/Articlees
dc.typeArticlees
dc.identifier.doi10.1115/1.2969800
dc.identifier.scopus55849133741-
dc.identifier.isi000259805200003-
dcterms.isPartOfJournal Of Solar Energy Engineering-Transactions Of The Asme-
dcterms.sourceJournal Of Solar Energy Engineering-Transactions Of The Asme[ISSN 0199-6231],v. 130 (4)-
dc.contributor.authorscopusid55666370900-
dc.contributor.authorscopusid7005207158-
dc.contributor.authorscopusid25641562500-
dc.contributor.authorscopusid25641594000-
dc.contributor.authorscopusid6602445453-
dc.contributor.authorscopusid7004839316-
dc.description.lastpage0410037-
dc.description.firstpage0410031-
dc.relation.volume130-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.identifier.wosWOS:000259805200003-
dc.contributor.daisngid2659431-
dc.contributor.daisngid11090994
dc.contributor.daisngid4553361-
dc.contributor.daisngid1113359-
dc.contributor.daisngid3491037
dc.contributor.daisngid8487935-
dc.contributor.daisngid3310427-
dc.contributor.daisngid28144666-
dc.identifier.investigatorRIDK-8643-2014-
dc.identifier.externalWOS:000259805200003-
dc.contributor.wosstandardWOS:Melian, JAH
dc.contributor.wosstandardWOS:Arana, J
dc.contributor.wosstandardWOS:Ortega, JA
dc.contributor.wosstandardWOS:Munoz, FM
dc.contributor.wosstandardWOS:Rendon, ET
dc.contributor.wosstandardWOS:Pena, JP
dc.date.coverdateNoviembre 2008
dc.identifier.ulpgces
dc.description.jcr0,662
dc.description.jcrqQ3
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.orcid0000-0002-2466-6531-
crisitem.author.orcid0000-0002-5551-029X-
crisitem.author.orcid0000-0002-8276-5327-
crisitem.author.orcid0000-0003-1889-2281-
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.fullNameAraña Mesa, Francisco Javier-
crisitem.author.fullNameOrtega Méndez, José Alejandro-
crisitem.author.fullNameMartín Muñoz, Francisco José-
crisitem.author.fullNameTello Rendón, Erick Danilo-
crisitem.author.fullNamePérez Peña,Jesús-
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