Degradation of disrupter regulateur dietilphtalate by (AOP)-UV-C/H2O2 using response surface methodology

In this study, the performance the treatment for the degradation of the pollutant diethyl phthalate (DEP) in synthetic effluent by the application of advanced oxidative process (AOP)-UV-C/H2O2 was verified. The study of oxidation kinetics followed a factorial design of eleven trials to understand the oxidation phenomena of DEP by AOP under experimental planning conditions. In this way, the influence of the H2O2 concentration, pH, temperature, and its effects were verified. The highest results were in the K9, K10 and K11 tests, which presented approximately 99.91; 96.18; 98.17% DEP degradation percentage (%), at pH 7, with 20 mM of H2O2 at 30°C in 120 min, respectively. For the DEP degradation percentage (%) there was a significant difference for pH with (p < 0.5) and the central points presented the results repeatability. Therefore, AOP as a treatment proposal for the degradation of DEP in agro-industrial effluent is efficient.