Experimental and model comparisons of H2O2 assisted UV photodegradation of Microcystin-LR in simulated drinking water

被引：0
|
作者：
Lei Li
Nai-yun Gao
Yang Deng
Juan-juan Yao
Ke-jia Zhang
Hai-jun Li
Di-di Yin
Hua-se Ou
Jian-wei Guo
机构：
[1] Tongji University,State Key Laboratory of Pollution Control and Resource Reuse
[2] University of Puerto Rico,Department of Civil Engineering and Surveying
[3] China University of Geosciences,Faculty of Material Science and Chemistry Engineering
来源：
Journal of Zhejiang University-SCIENCE A | 2009年 / 10卷
关键词：
Microcystin-LR (MC-LR); Hydrogen peroxide assisted ultraviolet (UV/H; O; ) process; Hydroxyl radical; Reaction kinetics; Photochemical degradation; X524;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The degradation of Microcystin-LR (MC-LR) in water by hydrogen peroxide assisted ultraviolet (UV/H2O2) process was investigated in this paper. The UV/H2O2 process appeared to be effective in removal of the MC-LR. MC-LR decomposition was primarily ascribed to production of strong and nonselective oxidant-hydroxyl radicals within the system. The intensity of UV radiation, initial concentration of MC-LR, MC-LR purity, dosages of H2O2, the initial solution pH, and anions present in water, to some extent, influenced the degradation rate of MC-LR. A modified pseudo-first-order kinetic model was developed to predict the removal efficiency under different experimental conditions.
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页码：1660 / 1669
页数：9
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