2021-04-162015-10-011631074818781543WOS;000368306200015SCOPUS;2-s2.0-84946488698http://hdl.handle.net/10784/29376In this study, the optimization and implementation of a homogeneous photo-Fenton process for the decolorization and mineralization of a wastewater containing highly concentrated yellow 5 (E102) dye, resulting from an industry placed in the suburbs of Medellin (Colombia), is presented. Response surface methodology was applied as a tool for the optimization of operational conditions such as initial dyestuff concentration. H2O2 concentration, and UV-radiation power (number of lamps). The decolorization, degradation and mineralization efficiencies were used as response variables. The following conditions were found to be optimal for decolorization and mineralization of yellow 5:UV radiation of 365 nm (4W. one lamp), dye concentration of 200 mg/L, Fe2+ concentration of 1.0 mM, H2O2 concentration of 1.75 mL/L, treatment time of 180 min, Fe2+ concentration of 1 mM and pH = 3. Under these conditions (180 min), the photo-Fenton process allowed us to reach ca. 100% of color dye degradation, 99% of COD degradation, and 85% of mineralization (TOC). The scavenging effect of the CI- anion on the photodegradation process was also confirmed. (C) 2015 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.enghttps://v2.sherpa.ac.uk/id/publication/issn/1631-0748Photo-Fenton processTartrazineYellow 5NaCl scavenging effectStatistical optimizationinfo:eu-repo/semantics/article2021-04-16GilPalvas, E.Gómez, C.M.Rynkowski, J.M.Dobrosz-Gómez, I.Gómez-García, M.Á.10.1016/j.crci.2015.08.001