Modeling the Photocatalytic Mineralization in Water of Commercial Formulation of Estrogens 17-β Estradiol (E2) and Nomegestrol Acetate in Contraceptive Pills in a Solar Powered Compound Parabolic Collector

摘要: Endocrine disruptors in water are contaminants of emerging concern due to the potential risks they pose environment and aquatic ecosystems. In this study, a solar photocatalytic treatment process pilot-scale compound parabolic collector (CPC) was used remove commercial estradiol formulations (17-β nomegestrol acetate) from water. Photolysis alone degraded up 50% removed 11% total organic carbon (TOC). contrast, photocatalysis 57% estrogens TOC removal 31%, with 0.6 g/L catalyst load (TiO2 Aeroxide P-25) 213.6 ppm as initial concentration estradiols formulation. The adsorption over insignificant modeled by Langmuir isotherm. via photoreactor considering reactor fluid-dynamics, radiation field, mass balance, modified Langmuir-Hinshelwood rate law, that expressed terms photon adsorption. optimum achieved at 0.4 29 mm diameter tubular CPC reactors which approached optical thickness determined modeling absorption CPC, six-flux absorption-scattering model (SFM).