The Friction Coefficient Investigation during Electrochemical Baromembrane Separation of Model Solutions

K. Shestakov
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Abstract

A large number of scientific papers in recent decades have been devoted to the mathematical description of a mass transfer of substances through membranes. The choice of a mathematical model is to be carried out depending on the specific separation process used. This study represents a verification of how the predicted value of the solute flow density obtained using pre-calculated friction coefficients corresponds to real experimental data for electrochemical baromembrane separation of model solutions. The experimental and theoretically calculated values of the Ni (II), Cu (II), and Fe (III) cations flux density through the heterogeneous cellulose acetate membranes MGA-95 and MGA-100 are compared. It is established that the use of the mass transfer friction model is quite effective in predicting the kinetic characteristics of electrochemical membrane separation of solutions using semipermeable membranes. The calculation error in most cases is within one percent.
模型溶液在电化学气压膜分离过程中的摩擦系数研究
近几十年来,大量的科学论文致力于用数学方法描述物质通过膜的传质过程。数学模型的选择取决于所使用的具体分离过程。该研究验证了利用预先计算的摩擦系数获得的溶质流动密度预测值如何与模型溶液的电化学气压膜分离的实际实验数据相对应。比较了Ni (II)、Cu (II)和Fe (III)阳离子通过非均相醋酸纤维素膜MGA-95和MGA-100的通量密度的实验值和理论计算值。结果表明,用传质摩擦模型预测半透膜溶液的电化学膜分离动力学特性是非常有效的。在大多数情况下,计算误差在1%以内。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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