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首页> 外文期刊>Journal of industrial and engineering chemistry >Mechanism and kinetic study for the degradation of lindane by photo-Fenton process
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Mechanism and kinetic study for the degradation of lindane by photo-Fenton process

机译：光芬顿法降解林丹的机理和动力学研究

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摘要

Because application of classical treatment methods cannot allow an easily Lindane (gamma 1α,2α,3β,4α,5α,6β-hexachlorocyclohexane) degradation, development of more powerful water treatment techniques, like advanced oxidation processes (AOPs), was necessary. The degradation of lindane (γ-HCH) has been studied using the photo-Fenton reaction. The degradation kinetics under irradiation was optimized in respect to H2O2 concentration and Fe~(2+) concentration at a constant lindane concentration. The degradation rate follows pseudo-first order kinetics with respect to lindane and organic clorine mineralization. Application of photo-Fenton system also assures total organic carbon removal with 95% efficiency at 2 h irradiation. The possible pathways of lindane photodegradation is also proposed.
机译：由于经典处理方法的应用不能轻易使林丹（γ1α，2α，3β，4α，5α，6β-六氯环己烷）降解，因此有必要开发更强大的水处理技术，例如高级氧化工艺（AOP）。已经使用光芬顿反应研究了林丹（γ-HCH）的降解。相对于恒定林丹浓度下的H2O2浓度和Fe〜（2+）浓度，优化了辐照下的降解动力学。降解速率遵循关于林丹和有机氯精矿矿化的伪一级动力学。 Photo-Fenton系统的应用还可以确保在2 h的照射下以95％的效率完全去除有机碳。还提出了林丹光降解的可能途径。

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