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首页> 外文期刊>Separation and Purification Technology >Modelling of wastewater electrocoagulation processes Part I.General description and application to kaolin-polluted wastewaters
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Modelling of wastewater electrocoagulation processes Part I.General description and application to kaolin-polluted wastewaters

机译：废水电凝过程建模第一部分。高岭土污染废水的一般描述和应用

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A mathematical model of the electrocoagulation process has been developed and tested with experimental data obtained during the treatment of kaolin suspensions.The model determines the concentration of the different aluminium species as a function of the total aluminium concentration and of the pH,and then it classifies these actual species into several model species as a function of their reactivity with the pollutant contained in the wastewater.The reactive processes involving coagulant and pollutant species are assumed to develop rapidly and they are modelled by pseudoequilibria approaches.In the case of the electrocoagulation of kaolin suspensions,two processes are assumed to be the primary ones:the charge neutralization of kaolin particles (by adsorption of cations or by the precipitation of charged aluminium hydroxides onto the kaolin particles) and the enmeshment of particles into a growing precipitate.The good reproducibility of the experimental observations (r2 = 0.92) together with the small number of parameters - especially given that most of them have a constant value - support the robustness of the model proposed and validate the assumptions made.
机译：开发了电凝过程的数学模型并利用在高岭土悬浮液处理过程中获得的实验数据进行了测试，该模型确定了不同铝种类的浓度与总铝浓度和pH的关系，然后对其进行分类这些实际种类根据它们与废水中所含污染物的反应性而分为几个模型种类。涉及凝结剂和污染物种类的反应过程被认为发展迅速，并通过拟均衡方法进行建模。悬浮液的主要过程被认为是两个过程：高岭土颗粒的电荷中和（通过阳离子的吸附或带电的氢氧化铝在高岭土颗粒上的沉淀）以及将颗粒啮合成正在生长的沉淀物。实验观察（r2 = 0.92）具有少量参数的r-特别是考虑到大多数参数都具有恒定值-支持所提出模型的鲁棒性并验证所作的假设。

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