Heterogeneous Catalytic Ozonation of Aniline-Contaminated Waters: A Three-Phase Modelling Approach Using TiO2/GAC
dc.contributor.author | Ferreiro Santiso, Cristian | |
dc.contributor.author | Villota Salazar, Natalia | |
dc.contributor.author | Lombraña Alonso, José Ignacio | |
dc.contributor.author | Rivero, María J. | |
dc.date.accessioned | 2021-01-11T13:12:10Z | |
dc.date.available | 2021-01-11T13:12:10Z | |
dc.date.issued | 2020-12-08 | |
dc.identifier.citation | Water 12(12) : (2020) // Article ID 3448 | es_ES |
dc.identifier.issn | 2073-4441 | |
dc.identifier.uri | http://hdl.handle.net/10810/49677 | |
dc.description.abstract | This work aims to study the sustainable catalytic ozonation of aniline promoted by granular active carbon (GAC) doped with TiO2. Aniline was selected as a model compound for the accelerator manufacturing industries used in the manufacture of rubber due to its environmental impact, low biodegradability, and harmful genotoxic effects on human health. Based on the evolution of total organic carbon (TOC), aniline concentration measured using high performance liquid chromatography (HPLC), pH and ozone concentration in liquid and gas phase, and catalyst loading, a three-phase reaction system has been modelled. The proposed three-phase model related the ozone transfer parameters and the pseudo-first order kinetic constants through three coefficients that involve the adsorption process, oxidation in the liquid, and the solid catalyst. The interpretation of the kinetic constants of the process allowed the predominance of the mechanism of Langmuir–Hinshelwood or modified Eley–Rideal to be elucidated. Seven intermediate aromatic reaction products, representative of the direct action of ozone and the radical pathway, were identified and quantified, as well as precursors of the appearance of turbidity, with which two possible routes of degradation of aniline being proposed. | es_ES |
dc.description.sponsorship | The authors are grateful to the University of the Basque Country for their financial support of this study through the PPGA19/63 project and C. Ferreiro’s predoctoral PIF grant (PIF16/367). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | aniline | es_ES |
dc.subject | catalytic ozonation | es_ES |
dc.subject | degradation routes | es_ES |
dc.subject | industrial wastewater | es_ES |
dc.subject | three-phase system | es_ES |
dc.subject | TiO2/GAC | es_ES |
dc.title | Heterogeneous Catalytic Ozonation of Aniline-Contaminated Waters: A Three-Phase Modelling Approach Using TiO2/GAC | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2020-12-24T15:56:19Z | |
dc.rights.holder | 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2073-4441/12/12/3448/htm | es_ES |
dc.identifier.doi | 10.3390/w12123448 | |
dc.departamentoes | Ingeniería química | |
dc.departamentoes | Ingeniería química y del medio ambiente | |
dc.departamentoeu | Ingeniaritza kimikoa | |
dc.departamentoeu | Ingeniaritza kimikoa eta ingurumenaren ingeniaritza |
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Except where otherwise noted, this item's license is described as 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).