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Removal of Paracetamol Using Effective Advanced Oxidation Processes
Fenton, photo-Fenton, and photo-induced oxidation, were investigated and compared for the treatment of 0.26 mmol L(−1) of paracetamol (PCT) in a deionised water matrix, during a reaction span of 120.0 min. Low and high Fenton reagent loads were studied. Particularly, the initial concentration of Fe(...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6388171/ https://www.ncbi.nlm.nih.gov/pubmed/30754732 http://dx.doi.org/10.3390/ijerph16030505 |
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author | Audino, Francesca Toro Santamaria, Jorge Mario del Valle Mendoza, Luis J. Graells, Moisès Pérez-Moya, Montserrat |
author_facet | Audino, Francesca Toro Santamaria, Jorge Mario del Valle Mendoza, Luis J. Graells, Moisès Pérez-Moya, Montserrat |
author_sort | Audino, Francesca |
collection | PubMed |
description | Fenton, photo-Fenton, and photo-induced oxidation, were investigated and compared for the treatment of 0.26 mmol L(−1) of paracetamol (PCT) in a deionised water matrix, during a reaction span of 120.0 min. Low and high Fenton reagent loads were studied. Particularly, the initial concentration of Fe(2+) was varied between 0.09 and 0.18 mmol L(−1) while the initial concentration of H(2)O(2) was varied between 2.78 and 11.12 mmol L(−1). The quantitative performance of these treatments was evaluated by: (i) measuring PCT concentration; (ii) measuring and modelling TOC conversion, as a means characterizing sample mineralization; and (iii) measuring cytotoxicity to assess the safe application of each treatment. In all cases, organic matter mineralization was always partial, but PCT concentration fell below the detection limit within 2.5 and 20.0 min. The adopted semi-empirical model revealed that photo induced oxidation is the only treatment attaining total organic matter mineralization ([Formula: see text] 100% in 200.0 min) at the expense of the lowest kinetic constant (k = 0.007 min(−1)). Conversely, photo-Fenton treatment using high Fenton reagent loads gave a compromise solution ([Formula: see text] 73% and k = 0.032 min(−1)). Finally, cytotoxicity assays proved the safe application of photo-induced oxidation and of photo-Fenton treatments using high concentrations of Fenton reagents. |
format | Online Article Text |
id | pubmed-6388171 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63881712019-02-27 Removal of Paracetamol Using Effective Advanced Oxidation Processes Audino, Francesca Toro Santamaria, Jorge Mario del Valle Mendoza, Luis J. Graells, Moisès Pérez-Moya, Montserrat Int J Environ Res Public Health Article Fenton, photo-Fenton, and photo-induced oxidation, were investigated and compared for the treatment of 0.26 mmol L(−1) of paracetamol (PCT) in a deionised water matrix, during a reaction span of 120.0 min. Low and high Fenton reagent loads were studied. Particularly, the initial concentration of Fe(2+) was varied between 0.09 and 0.18 mmol L(−1) while the initial concentration of H(2)O(2) was varied between 2.78 and 11.12 mmol L(−1). The quantitative performance of these treatments was evaluated by: (i) measuring PCT concentration; (ii) measuring and modelling TOC conversion, as a means characterizing sample mineralization; and (iii) measuring cytotoxicity to assess the safe application of each treatment. In all cases, organic matter mineralization was always partial, but PCT concentration fell below the detection limit within 2.5 and 20.0 min. The adopted semi-empirical model revealed that photo induced oxidation is the only treatment attaining total organic matter mineralization ([Formula: see text] 100% in 200.0 min) at the expense of the lowest kinetic constant (k = 0.007 min(−1)). Conversely, photo-Fenton treatment using high Fenton reagent loads gave a compromise solution ([Formula: see text] 73% and k = 0.032 min(−1)). Finally, cytotoxicity assays proved the safe application of photo-induced oxidation and of photo-Fenton treatments using high concentrations of Fenton reagents. MDPI 2019-02-11 2019-02 /pmc/articles/PMC6388171/ /pubmed/30754732 http://dx.doi.org/10.3390/ijerph16030505 Text en © 2019 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/). |
spellingShingle | Article Audino, Francesca Toro Santamaria, Jorge Mario del Valle Mendoza, Luis J. Graells, Moisès Pérez-Moya, Montserrat Removal of Paracetamol Using Effective Advanced Oxidation Processes |
title | Removal of Paracetamol Using Effective Advanced Oxidation Processes |
title_full | Removal of Paracetamol Using Effective Advanced Oxidation Processes |
title_fullStr | Removal of Paracetamol Using Effective Advanced Oxidation Processes |
title_full_unstemmed | Removal of Paracetamol Using Effective Advanced Oxidation Processes |
title_short | Removal of Paracetamol Using Effective Advanced Oxidation Processes |
title_sort | removal of paracetamol using effective advanced oxidation processes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6388171/ https://www.ncbi.nlm.nih.gov/pubmed/30754732 http://dx.doi.org/10.3390/ijerph16030505 |
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