Degradation and decoloration of contaminated water with textile dyes using advanced oxidation processes

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Laura Castro-Peña
J. Esteban Durán-Herrera

Abstract

The degradation and decolorization of azo dye COLRON RED SD3B as model pollutant by H2O2/ UV and H2O2/Fe2+/UV processes were investigated. The effects of dye concentration, solution pH, and Fe2+ and H2O2 dosages were studied using Taguchi´s experimental design method. Photo-Fenton process showed to be more efficient than H2O2/UV process for the color removal and degradation of the dye. The conditions that produced higher degradations rates were pH=2, dye concentration of 100 ppm, ferrous dosage of 80 ppm and hydrogen peroxide dosage of 102 ppm (3.0 mmol/L). Under these conditions, 65.5 % COD reduction and 77.0 % decolorization of the azo dye wastewater were achieved after one hour of treatment.

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Artículo científico

How to Cite

Degradation and decoloration of contaminated water with textile dyes using advanced oxidation processes. (2014). Tecnología en Marcha Journal, 27(2), pág. 40-50. https://doi.org/10.18845/tm.v27i2.1807