多环芳烃蒽、屈在水体中的光解动力学模拟研究  

Study on modelling the photolysis kinetics of Polynuclear aromatic hydrocarbons (anthracene and chrysece).

作　　者：唐玉斌[1] 王郁[1] 林逢凯[1] 胥峥[1] 林铸炉[1] 

机构地区：[1]华东理工大学资源与环境工程学院

出　　处：《中国环境科学》1999年第3期262-265,共4页China Environmental Science

基　　金：国家自然科学基金!29377271

摘　　要：研究了紫外光和太阳光下蒽、在甲醇一水溶液中的光分解反应结果表明，水中较低浓度葱、的光解表观上呈一级反应动力学规律，微观上是二级反应的加和蒽和的光解速率常数随着温度升高、光照距离减小及水中溶解氧增加而增大，但与水中急和宏的初始浓度无关黄浦江沉积物作为悬浮物加入后蒽和的光解效率下降对蒽和光解速率的比较分析表明。The photolysis of anthracene(An) and chrysene(Ch) in natufal water was stUdied. The lst order reachons inaPPearance is Performed for the photolysis of PAHs;but in microcosm,the photolysis is the addihon of a series of Zndorder reactions. The photolysis rate constantS of An and Ch were increased with rise in tCmperamre,increase of DO andreduchon of illuminahon distance. The photolysis efficiencies were decreased due to the etistgnce of sediments ofHuangpu River as suspended solids. The rate constantS and efficiencies of photolysis for PAHs were not related tO theoriginal concentration of An and Ch. In addition,the photolysis rates were compared betWeen An and Ch,which showedthat the rate constant is related with the characteristics of the photolytic substance.

关 键 词：多环芳烃 河流 光解动力学模拟 水体 

分 类 号：X131[环境科学与工程—环境科学] X52