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Process optimization of Fenton oxidation using kinetic modeling

机译：使用动力学模型优化Fenton氧化的工艺

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In the remediation, water, and wastewater industries, an appropriate understanding of the chemical reactions governing the Fenton system allows the development of kinetic models to help design and optimize the performance and efficiency of treatment processes. In this work a rigorous kinetic model describing substrate oxidation by Fenton's reagent, following validation by comparison with experimental data, is extended and applied to provide insight and gain information regarding optimum initial conditions, solution environment, and operating regimes for the decomposition of a target contaminant. The effect of variables such as initial molar ratios of H2O2 to Fe(II), H2O2 dosing regimes, solution pH, and the presence or absence of oxygen on the rate and efficiency of contaminant degradation is presented and discussed in light of the reactions involved. Model simulations of the oxidation of various organic species demonstrate the significant role organic radicals and oxidation byproducts can have on treatment performance. An appropriate understanding of the oxidation pathway of the target organic and the reactions of degradation products is essential for the accurate application and use of the kinetic model for design and optimization purposes.
机译：在修复，水和废水处理行业中，对控制Fenton系统的化学反应的适当理解可以开发动力学模型，以帮助设计和优化处理过程的性能和效率。在这项工作中，扩展了严格的动力学模型，该模型描述了Fenton试剂对底物的氧化作用，并通过与实验数据的比较进行了验证，并将其应用于提供洞察和获取有关目标污染物分解的最佳初始条件，溶液环境和操作方式的信息。根据涉及的反应，提出并讨论了变量（例如H2O2与Fe（II）的初始摩尔比，H2O2的添加方式，溶液的pH值以及氧气的存在与否）对污染物降解速率和效率的影响。对各种有机物氧化的模型仿真表明，有机基团和氧化副产物对处理性能具有重要作用。正确理解目标有机物的氧化途径和降解产物的反应对于准确应用和使用动力学模型进行设计和优化至关重要。

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