Evaluation of UV irradiation for photolytic and oxidative degradation of pharmaceutical compounds in water

被引：228

作者：

Pereira, Vanessa J.

Linden, Karl G. ^{[1
]}

Weinberg, Howard S.

机构：

[1] Duke Univ, Dept Civil & Environm Engn, Durham, NC 27706 USA

[2] Univ N Carolina, Sch Publ Hlth, Dept Environm Sci & Engn, Chapel Hill, NC 27515 USA

来源：

WATER RESEARCH | 2007年 / 41卷 / 19期

关键词：

pharmaceutically active compounds; photodegradation; UV; UV/H2O2; MP; LP; surface water;

D O I：

10.1016/j.watres.2007.05.056

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A medium-pressure (MP) ultraviolet (UV) system was used to investigate the UV photolysis and UV/H2O2 oxidation of pharmaceutically active compounds (PhACs) that belong to different therapeutic classes and were found to occur in the aquatic environment. The results obtained in laboratory- grade water (LGW) and surface water (SW) were compared with low-pressure (LP) results reported previously. Overall, MP lamps proved to be more efficient to maximize the bench-scale degradation of the selected group of compounds (ketoprofen, naproxen, carbamazepine, ciprofloxacin, clofibric acid, and iohexol) by both UV photolysis and UV/H2O2 oxidation. Fundamental direct and indirect photolysis parameters obtained in LGW are reported and used to model the MP-UV photolysis and MP-UV/H2O2 oxidation of the pharmaceuticals in SW, predicting the experimental results very well. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4413 / 4423

页数：11

共 21 条

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