水体中苯的高级氧化及其反应动力学
水体中苯的高级氧化及其反应动力学 篇1
摘要：根据臭氧的自分解以及臭氧与过氧化氢反应诱发产生OH*自由基机理， 建立了有机污染物降解过程的动力学模型，并推导出有机物高级氧化过程的速率方程。实验研究了废水中的苯在298K和pH=3～9的`高级氧化降解过程。在碱性条件下，实验结果与导出的动力学模型相符。Abstract：A kinetic model has been developed for the degradation of organic pollutants considering both decomposition of ozone molecules and interaction between ozone and hydrogen peroxide for formation of hydroxyl radical and subsequent reactions. Rate equations were derived for depletion of ozone and pollutants in the advanced oxidation processes (known as the peroxone oxidation). Experiments were carried out at 298 K in the pH range of 3 to 9. Kinetic data obtained experimentally from the hydrogen peroxide_ozone reaction and peroxone oxidation of benzene were analyzed by using the proposed rate equations. The experimental results are in agreement with the theoretical model in basic solutions. Ozone; Hydrogen peroxide; Benzene; kinetics; advanced oxidation processes作 者：钟理 詹怀宇 Zhong Li Zhan Huai_yu 作者单位：钟理,Zhong Li(华南理工大学 化工系,)
詹怀宇,Zhan Huai_yu(华南理工大学)