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Abstract: The benefits of wastewater remediation technologies are offset in those cases where, as a result of operating conditions, harmful compounds are formed in the degradation routes of the original organic pollutants. This may be the case for the application of some advanced oxidation processes to wastewater containing precursors of dioxins and furans, as previously reported in the application of electrochemical and Fenton oxidation to degrade Triclosan and 2-chlorophenol. This work reports for the first time a detailed kinetic analysis of the formation of dioxins and furans during the photocatalytic treatment of aqueous samples containing 5-Chloro-2-[2,4-dichlorophenoxy] phenol, commercially known as Triclosan. After analysis of the PCDD/Fs concentration, the toxicity of the samples has been determined in terms of toxic equivalents (TEQ). TEQ values have been calculated, first with the group of 17 congeners with higher toxicity. Finally, a multivariable analysis and linear regression have been applied to reduce the significant number of congeners and optimize the analytical effort.
Autoría: Schröder S., San-Román M.F., Ortiz I.,
Fuente: Science of the Total Environment, 2021, 70, 144853
Fecha de publicación: 20/05/2021
Nº de páginas: 10
Tipo de publicación: Artículo de Revista
Proyecto español: CTM2017-87740-R
Url de la publicación: https://doi.org/10.1016/j.scitotenv.2020.144853
SOPHIE MARY SCHRÖDER BARRAZA
MARIA FRESNEDO SAN ROMAN SAN EMETERIO
INMACULADA ORTIZ URIBE