Pollution caused by textile processes has led several countries to create stricter environmental legislation for the treatment of industrial effluents. Since, to meet legal requirements, the degradation of these chemical dyes must have a low environmental impact and high removal efficiency. This study performed the Life Cycle Analysis (LCA) of the degradation of dyes in 1 m³ of effluent, through advanced oxidative processes, using the Photo-Fenton process. For the Life Cycle Inventory (ICV), the compounds Hydrogen Peroxide (H2O2) and Iron (II) Sulphate (FeSO4) were considered. The methodology for calculating environmental impacts was ReCiPe 2016 Midpoint (I) V1.04 / World (2010) I and the impact categories of the studies were: Global Warming, Freshwater Eutrophication, Freshwater Ecotoxicity and Human Carcinogenic Toxicity. The sensitivity analysis occurred in comparison with the methodologies: IPCC 2013 GWP 20a V1.03 and CML-IA baseline V3.06 / World 2000. All simulations occurred in the SimaPro® software, Faculty version, and pointed to H2O2 as an important contributing agent, along with the secondary products formed by the degradation of the dyes by the Photo-Fenton process, for the environmental impacts of this treatment.
Keywords: Life Cycle Analysis, Dye Degradation, Photo-Fenton Pr