title: Modeling of decomposition characteristics of estrogenic chemicals during ozonation.
abstract: The purposes of this study were to develop a refined model for simulation of ozonation of estrogenic chemicals under different conditions and to investigate the behaviors of estrogenic by-products using the model. In the cases of ozonation of 17-estradiol (E2), bisphenol-A (BPA) and nonylphenol (NP) in aqueous solution, it can be concluded that the liquid film resistances are larger than bulk resistances, and thus most of the reaction occurs in liquid bulk. E2, BPA and NP are easily decomposed producing by-products of ozonation, but the estrogenicity of these chemicals and the by-products reduced with increase in ozonation time. Through this research, ozonation was shown to be a promising method to decompose E2, BPA and NP and to reduce the estrogenicity of these chemicals.
authors.affiliation: Korea Institute of Science and Technology, P O BOX 131, Cheongryang, Seoul, 130-650, Korea.
authors.forename: S-E
authors.initials: SE
authors.lastname: Kim
authors.forename: N-S
authors.initials: NS
authors.lastname: Park
authors.forename: H
authors.initials: H
authors.lastname: Yamada
authors.forename: H
authors.initials: H
authors.lastname: Tsuno
mesh_terms: D001559:Benzhydryl Compounds; D052244:Endocrine Disruptors / Q000737:chemistry; D004958:Estradiol / Q000737:chemistry*; D008956:Models, Chemical; D010126:Ozone / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D052244:Endocrine Disruptors; D004958:Estradiol; D010126:Ozone; D010636:Phenols; C025256:nonylphenol; C006780:bisphenol A; D000098826:Bisphenol A Compounds