UV/K_2S_2O_8耦合降解四环素研究  

Research on the UV/K_2S_2O_8 coupled process for the degradation of tetracycline

作　　者：扶咏梅[1] 王昀鹏 王现丽[1] 吴俊峰[1] 郭一飞[1] 康海彦[1] 

机构地区：[1]河南城建学院市政与环境工程学院,河南平顶山467036 [2]湖南大学土木工程学院,湖南长沙410082

出　　处：《工业水处理》2017年第4期47-50,共4页Industrial Water Treatment

基　　金：国家自然科学基金资助项目(21507081);河南省高等学校青年骨干教师资助项目

摘　　要：研究了UV/K_2S_2O_8体系对水中四环素的降解效果。首先对比了该反应体系与UV氧化、单独K_2S_2O_8氧化对四环素的处理效果,结果表明UV能有效活化分解K_2S_2O_8,能有效去除水中的四环素。同时探讨了四环素初始浓度、K_2S_2O_8投量、反应时间、溶液初始pH对降解效果的影响,结果表明,在最佳条件下四环素的降解率达100%。同时实验结果表明,UV/K_2S_2O_8体系对四环素的降解过程符合一级动力学规律。最后探讨了UV/K_2S_2O_8技术降解四环素的机理。The degradation effect of UV/K2S2O8 system on tetracycline in water has been researched. Firstly,the treatment effect of this reaction system on tetracycline is compared with that of UV oxidation and single K2S2O8 oxidation on tetracycline. The results show that UV can activate and decompose K2S2O8 in water and remove tetracycline from water effectively. Meanwhile,the influences of the initial concentration of tetracycline,K2S2O8 dosage,reaction time,and the initial pH of the solution on the degradation effect are discussed. The results show that under the optimal conditions,the degradation rate of tetracycline reaches 100%. In addition,the experimental results also show that the UV/K2S2O8 system used for the degradation process of tetracycline complies with the first-order kinetic rule. At the end,the mechanisms of UV/K2S2O8 process for the degradation of tetracycline is investigated.

关 键 词：UV/K2S2O8 四环素 降解 

分 类 号：X703[环境科学与工程—环境工程]