Ozonation and advanced oxidation by the peroxone process of ciprofloxacin in water

被引：195

作者：

De Witte, Bavo ^{[1
]}

Dewulf, Jo ^{[1
]}

Demeestere, Kristof ^{[1
]}

Van Langenhove, Herman ^{[1
]}

机构：

[1] Univ Ghent, Res Grp EnVOC, Fac Biosci Engn, B-9000 Ghent, Belgium

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 161卷 / 2-3期

关键词：

Ciprofloxacin; Quinolone; Ozonation; Peroxone; FLUOROQUINOLONE ANTIBACTERIAL AGENTS; TANDEM MASS-SPECTROMETRY; CHLOROBENZOIC ACID PCBA; WASTE-WATER; LIQUID-CHROMATOGRAPHY; ENVIRONMENTAL EXPOSURE; OZONE; ANTIBIOTICS; PHARMACEUTICALS; WASTEWATERS;

D O I：

10.1016/j.jhazmat.2008.04.021

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A bubble reactor was used for ozonation of the antibiotic ciprofloxacin. Effects of process parameters ozone inlet concentration, ciprofloxacin concentration, temperature, pH and H2O2 concentration were tested. Desethylene ciprofloxacin was identified, based on HPLC-MS analysis, as one of the degradation products. Formation of desethylene ciprofloxacin was highly dependent on pH, with the highest concentration measured at pH 10. Radical scavengers t-butanol and parachlorobenzoic acid were added in order to gain mechanistic understanding. Radical species other than hydroxyl radicals were suggested to occur at acidic pH which can explain fast ciprofloxacin ozonation at pH 3. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：701 / 708

页数：8

共 28 条

[1] Effects of advanced oxidation processes (AOPs) on the toxicity of a mixture of pharmaceuticals [J].