水体中微污染磺胺嘧啶药物的氧化降解  

Degradation of trace sulfadiazine medication in Water

作　　者：吴南村[1] 尹平河[1] 赵玲[1] 黄焕标[1] 严兴[1] 

机构地区：[1]暨南大学生命科学技术学院,广东广州510632

出　　处：《生态环境》2008年第6期2183-2186,共4页Ecology and Environmnet

基　　金：广东省自然科学基金重点项目(04105835);973项目(2001CB409710);广东省教育厅学科建设重点项目

摘　　要：环境中残留的微量抗生素药物对生态环境的危害和修复越来越受到人们的重视。对广泛使用的广谱抗菌素磺胺嘧啶(SD)微污染水体的Fenton氧化降解进行了研究,探讨了SD、H2O2、Fe2+质量浓度、pH和反应时间对SD降解率的影响。研究结果表明,当SD初始质量浓度为2.0mg·L-1,水体中添加H2O2、Fe2+至质量浓度分别为30mg·L-1和1.25mg·L-1,反应时间为60min时,降解率可以达到99.8%,说明Fenton法是一种有效的处理微量磺胺嘧啶带来的水体污染的修复方法。The impact of trace antibiotics pollution on ecosystem and its repair has been attracting people＇s increasingly attention. The oxidation of trace sulfadiazine （SD） in water by Fenton process was investigated in this article, some intermediate products in oxidation process were researched as well. Factors influencing oxidation such as concentration of H2O2 and SD were discussed. The optimal condition were SD=2 mg·L^-1, H2O2=30 mg·L^-1, Fe^2 ＋=1.25 mg·L^-1, pH=3 when the initial SD concentration was 2.0 mg·L^-1. the degradation rate reached 99.8% within 60 min. The study demonstrated that Fenton process can degrade trace sulfadiazine in water efficiently.

关 键 词：磺胺嘧啶 FENTON 降解率 

分 类 号：X131.2[环境科学与工程—环境科学]