Combined reverse osmosis and UV/H2O2 treatment of aqueous solutions of bisphenol A and 17α-ethinylestradiol: assessment of estrogenic activity

• DOI: 10.1080/09593330.2022.2051608
• Publication Date: 2022-03-08T17:55:16Z
• Authors: Carolina G. Moreira; Larissa C. de Souza; Thayanne C. Casto...; Giselle Gomes; Daniele M. Bila; Fabiana V. Fonseca
• Keywords: Ethinylestradiol; Osmosis

Bisphenol-A (BPA) and 17α-ethinylestradiol (EE2) are considered endocrine disrupting compounds (EDC) they may be harmful to the normal functioning of systems humans animals. Moreover, presence these in superficial groundwater represent serious risks, even low concentrations like ng·L-1. The objectives this study were remove BPA EE2 from solutions containing a mixture ultrapure water at through reverse osmosis (RO) membrane combined with UV/H2O2 process. Furthermore, assess estrogenic activity reduction after such treatments, vitro recombinant yeast-estrogen screen (YES) assay was used. removal efficiencies target micropollutants increased increase H2O2 dosage. For RO permeate stream, enhanced 91% 96% for 76% 90% while, concentrate 70% 81% 41% 84% as concentration 100 1000 µg·L-1. OH radicals' generation dominant factor degradation EDC during treatment since photolysis itself not enough degrade or EE2. high, ranging 92% 98% stream 50% 93% stream. responsible whole observed does present estrogenicity, by YES assay, observed.