水体表面微层中酞酸酯的光降解研究  

PHOTODEGRADATION OF PHTHALIC ESTER IN WATER SURFACE MICROLAYER

作　　者：金朝晖[1] 黄国兰[1] 柴英涛[1] 钟艳霞 王栋 李红亮[1] 

机构地区：[1]南开大学环境科学系,天津300071

出　　处：《环境化学》1999年第2期109-114,共6页Environmental Chemistry

基　　金：国家自然科学基金资助项目No:29577280

摘　　要：研究了水体表面微层中酞酸酯化合物(DBP,DEHP)光降解的动力学,指出光催化降解符合一级动力学过程.实验证明:催化剂TiO_2为2g·1^(-1),pH为6,并有H_2O_2存在时,是DBP,DEHP光降解的最佳条件;溶解氧增加有利于光降解.实际表面微层水样的光催化降解速率比模拟水样快.Photodegradation dynamics of phthalic ester in water surface microlayer was studied. The result suggests that photodegradation a first-order kinetics. Optimum conditions of photodegradation are: TiO2 is 2g·l-1; pH 6.0 and H2O2 existed. The increasing dissolved oxygen benefits photodegradation . The rate of photodegradation in actual water surface microlayer is faster than that in the simulated system.

关 键 词：表面微层 酞酸酯 光降解 动力学 废水处理 

分 类 号：X703[环境科学与工程—环境工程]