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Humic-like substances from urban waste as auxiliaries for photo-Fenton treatment: a fluorescence EEM-PARAFAC study

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Humic-like substances from urban waste as auxiliaries for photo-Fenton treatment: a fluorescence EEM-PARAFAC study

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dc.contributor.author García-Ballesteros, Sara es_ES
dc.contributor.author Constante, M. es_ES
dc.contributor.author Vicente Candela, Rafael es_ES
dc.contributor.author Mora Carbonell, Margarita es_ES
dc.contributor.author Amat Payá, Ana María es_ES
dc.contributor.author Arques Sanz, Antonio es_ES
dc.contributor.author Carlos, L. es_ES
dc.contributor.author García Einschlag, F.S. es_ES
dc.date.accessioned 2018-06-21T04:22:27Z
dc.date.available 2018-06-21T04:22:27Z
dc.date.issued 2017 es_ES
dc.identifier.issn 1474-905X es_ES
dc.identifier.uri http://hdl.handle.net/10251/104446
dc.description.abstract [EN] In this work, analysis of excitation-emission-matrices (EEM) has been employed to gain further insight into the characterization of humic like substances (HLS) obtained from urban wastes (soluble bio-organic substances, SBOs). In particular, complexation of these substances with iron and changes along a photo-Fenton process have been studied. Recorded EEMs were decomposed by using parallel factor analysis (PARAFAC). Three fluorescent components were identified by PARAFAC modeling of the entire set of SBO solutions studied. The EEM peak locations (lambda(ex)/lambda(em)) of these components were 310-330 nm/400-420 nm (C1), 340-360 nm/450-500 nm (C2), and 285 nm/335-380 nm (C3). Slight variations of the maximum position of each component with the solution pH were observed. The interaction of SBO with Fe(III) was characterized by determining the stability constants of the components with Fe(III) at different pH values, which were in the order of magnitude of the ones reported for humic substances and reached their highest values at pH = 5. Photochemical experiments employing SBO and Fe(III), with and without H2O2, showed pH-dependent trends for the evolution of the modeled components, which exhibited a strong correlation with the efficiency reported for the photo-Fenton processes in the presence of SBO at different pH values. es_ES
dc.description.sponsorship This work was supported by Generalitat Valenciana, Conselleria d'Ecuacio, Cultura i esport, Spain (GV/2015/074), Spanish Ministerio de Economia y Competitividad (CTQ2015-69832-C4-4-R) and by the Marie Sklodowska-Curie Research and Innovation Staff Exchange project funded by the European Commission H2020-MSCA-RISE-2014 (Project number: 645551). F. S. G. E. and L. C. are researchers from CONICET, Argentina. en_EN
dc.language Inglés es_ES
dc.publisher The Royal Society of Chemistry es_ES
dc.relation.ispartof Photochemical & Photobiological Sciences es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject.classification MATEMATICA APLICADA es_ES
dc.subject.classification QUIMICA FISICA es_ES
dc.title Humic-like substances from urban waste as auxiliaries for photo-Fenton treatment: a fluorescence EEM-PARAFAC study es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1039/c6pp00236f es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//GV%2F2015%2F074/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/645551/EU/Enhancing water quality by developing novel materials for organic pollutant removal in tertiary water treatments/ en_EN
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//CTQ2015-69832-C4-4-R/ES/TECNOLOGIAS EFICIENTES PARA LA ELIMINACION DE CONTAMINANTES DE PREOCUPACION EMERGENTE, CONTENIDOS EN DIRECTIVA 2013%2F39%2FCE O DE RIESGO SIGNIFICATIVO SEGUN DIRECTIVA 2008%2F105%2FCE/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada es_ES
dc.description.bibliographicCitation García-Ballesteros, S.; Constante, M.; Vicente Candela, R.; Mora Carbonell, M.; Amat Payá, AM.; Arques Sanz, A.; Carlos, L.... (2017). Humic-like substances from urban waste as auxiliaries for photo-Fenton treatment: a fluorescence EEM-PARAFAC study. Photochemical & Photobiological Sciences. 16:38-45. https://doi.org/10.1039/c6pp00236f es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1039/c6pp00236f es_ES
dc.description.upvformatpinicio 38 es_ES
dc.description.upvformatpfin 45 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 16 es_ES
dc.relation.pasarela S\326920 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder European Commission es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES
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