UV／Fenton法对诺氟沙星的降解与矿化

研究了UV/Fenton反应对氟喹诺酮类抗生素诺氟沙星的降解与矿化过程。内容包括：H2O2，Fe^2＋的初始浓度、pH值等因素对UV/Fenton反应的影响。结果表明，对于UV／H2O2／Fe^2＋反应系统的诺氟沙星的降解，其降解速率受反应条件的强烈影响。诺氟沙星初始浓度为25mg／L时，适宜的操作条件是：初始pH值为4，FeSO4浓度为0．72mmol／L，H2O2浓度为23．50mmol／L。对要求总有机碳（TOC）去除率高的氟喹诺酮类抗生素的处理，UV／Fenton类型反应在技术上是可行的。

Study on Degradation and Mineralization of Norfloxacin by UV/Fenton Processes

The degradation and mineralization of fluoroquinolone antibiotics norfloxacin by UV/Fenton processes is inves-tigated. The degradation rate is strongly dependent on the pH,initial concentrations of Fe2 and H2O2. Result shows that with initial concentration of 25,mg/L, the optimum conditions are obtained at pH 4 for the UV/H2O2/Fe2 systems. The optimum concentration of FeSO4 is 0.72,mmol/L and H2O2 is 23.50 mmol/L. It is suggested that reactions of UV/Fenton type are available techniques for the treatment of such types of fluoroquinolone antibiotics which requires high levels of TOC re- moval.