O_3/H_2O_2对MTBE的氧化降解动力学研究  

Degradation kinetic of Methyl Tert-Butyl Ether (MTBE) by O_3/H_2O_2.

作　　者：胡勤海[1] 张杏青[1] 毛柯辉[1] 武丽丽[1] 王丹[1] 

机构地区：[1]浙江大学环境与资源学院,浙江杭州310029

出　　处：《浙江大学学报（理学版）》2009年第1期80-83,89,共5页Journal of Zhejiang University（Science Edition）

摘　　要：近年来汽油添加剂甲基叔丁基醚(MTBE)对环境造成的持久性的危害已越来越受到人们的重视.地下水中MTBE的污染主要是常见于通过地下储藏罐或管道渗漏造成.本文试验研究探讨了O3/H2O2氧化MTBE的降解过程及反应动力学.结果表明:pH值及温度的升高可以明显提高反应速率.MTBE降解过程符合拟一级动力学.当pH为6.5时,速率常数k为1.20×106exp(-40.5/RT).The occurrence of the gasoline additive methyl tert-butyl ether （MTBE） in the environment has received considerable attention. The pollutant is frequently found in the groundwater due to leaking of underground storage tanks or pipelines. This research investigated the reaction kinetics of degradation for the oxidation of MTBE by O3 / H2O2. The results showed： pH and temperature increase could increase the reaction rate. And the rate of MTBE degradation exhibited pseudo-first-order behavior. At pH of 6.5, the rate constant k = 1.20 ×10^6 exp（ - 40.5/RT）.

关 键 词：MTBE O3/H2O2 降解 动力学 

分 类 号：X131.2[环境科学与工程—环境科学]