title: [Radiolytic Decomposition of Ciprofloxacin Hydrochloride in Aqueous Solution Using γ Irradiation].
abstract: Effects of initial concentrations, pH values, different additives and composite pollutants on ciprofloxacin hydrochloride removal using γ irradiation were investigated. The experiments results showed γ irradiation could effectively remove ciprofloxacin hydrochloride; low initial concentration and strongly acidic condition were favorable for CIP removal using γ irradiation; the degradation of CIP was inhibited upon the addition of CO3(2-) and methanol, which indicated that the degradation of CIP might be mainly ascribed to *OH oxidation and the direct decomposition of CIP molecules induced by irradiation. BrO3- showed a synergistic effect with CIP in degradation of the composite pollutants when mixed together with CIP for γ irradiation, and the removal rates of both pollutants were improved. At an absorbed dose of 400 Gy, the removal rates of CIP and BrO3- were increased by 18.74% and 1.81%, respectively. The removal rates of TOC and COD were 15.22% and 61.44%, respectively, when the 100 mg x L(-1) CIP was degraded by γ irradiation at the absorbed dose of 6 000 Gy.
authors.forename: Sheng-nan
authors.initials: SN
authors.lastname: Zhu
authors.forename: Zhao-bing
authors.initials: ZB
authors.lastname: Guo
authors.forename: Yong-fu
authors.initials: YF
authors.lastname: Zhao
authors.forename: Xin
authors.initials: X
authors.lastname: Ge
authors.forename: Ying
authors.initials: Y
authors.lastname: Wei
authors.forename: Shu
authors.initials: S
authors.lastname: Chen
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
mesh_terms: D002939:Ciprofloxacin / Q000737:chemistry* / Q000528:radiation effects; D005720:Gamma Rays
chemical_list: D002939:Ciprofloxacin