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Waste cleaning waste: Photodegradation of monochlorophenols in the presence of waste-derived photosensitizer

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Waste cleaning waste: Photodegradation of monochlorophenols in the presence of waste-derived photosensitizer

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dc.contributor.author Avetta, P. en_EN
dc.contributor.author Bella, F.
dc.contributor.author Prevot, A. Bianco
dc.contributor.author Laurenti, E.
dc.contributor.author Montoneri, E.
dc.contributor.author Arques Sanz, Antonio
dc.contributor.author Carlos, L.
dc.date.accessioned 2014-05-06T08:28:15Z
dc.date.available 2014-05-06T08:28:15Z
dc.date.issued 2013 es_ES
dc.identifier.issn 2168-0485 es_ES
dc.identifier.uri http://hdl.handle.net/10251/37244
dc.description.abstract Soluble bio-based substances (SBO) have been isolated from urban waste. Their structural similarity with natural organic matter suggested exploring their activity in the photodegradation of organic substrates. In this work, they are shown to promote the photodegradation of monochlorophenols. Experiments performed with 1.0 × 10−4 M substrate solutions irradiated by simulated solar light in the presence of SBO showed the progressive degradation of all the probe substrates. The experimental data were fitted to a pseudo-first-order kinetics, and the rate constant was found to decrease in the following order: 2-chlorophenol > 3- chlorophenol > 4-chlorophenol. The effect of pH and SBO concentration on chlorophenols degradation was assessed. Experiments performed in the presence of selective scavengers along with EPR measurements supported the main role of singlet oxygen in the substrate photodegradation mechanism. Toxicity assays showed that the photodegradation of chlorophenols in the presence of SBO is accompanied with a progressive up to complete detoxification of the system. Moreover, no significant contribution of SBO to the whole system toxicity was observed. The results show how urban wastes can be a resource of photosensitizing bio-based substances to be explored in wastewater treatments.
dc.description.sponsorship This work has been partially supported with Italian Ministero delle Politiche Agricole e Forestali funds for the Agrienergia project. The authors are also grateful to 7thFP, IRSES-2010-269128-EnvironBos Marie Curie Action, to Acea Pinerolese Industriale in Pinerolo, TO (Italy), for supplying the sourcing UBW material, and to Studio Chiono and Associati in Rivarolo Canavese, TO (Italy), for making available the pilot equipment for SBO production. en_EN
dc.language Inglés es_ES
dc.publisher American Chemical Society en_EN
dc.relation.ispartof ACS Sustainable Chemistry & Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Biowaste es_ES
dc.subject Photolysis en_EN
dc.subject Chlorophenols en_EN
dc.subject Wastewater en_EN
dc.subject Singlet oxygen en_EN
dc.subject Renewable feedstock en_EN
dc.subject.classification QUIMICA FISICA es_ES
dc.title Waste cleaning waste: Photodegradation of monochlorophenols in the presence of waste-derived photosensitizer
dc.type Artículo es_ES
dc.identifier.doi 10.1021/sc400294z
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/269128/EU/Isolation, Characterization and screening of environmental applications of Bio-Organic substances obtained from urban biomasses (EnvironBOS)/
dc.rights.accessRights Abierto en_EN
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera es_ES
dc.description.bibliographicCitation Avetta, P.; Bella, F.; Prevot, AB.; Laurenti, E.; Montoneri, E.; Arques Sanz, A.; Carlos, L. (2013). Waste cleaning waste: Photodegradation of monochlorophenols in the presence of waste-derived photosensitizer. ACS Sustainable Chemistry & Engineering. 1:1545-1550. https://doi.org/10.1021/sc400294z es_ES
dc.description.accrualMethod S es_ES
dc.description.upvformatpinicio 1545 es_ES
dc.description.upvformatpfin 1550 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 1 es_ES
dc.relation.senia 265885 es_ES
dc.contributor.funder European Commission
dc.contributor.funder Ministero delle politiche agricole alimentari, forestali e del turismo, Italia


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