Simulation of a pervaporation system on the industrial scale for water treatment. Part I: Extended resistance-in-series model
Simulation of a pervaporation system on the industrial scale for water treatment. Part I: Extended resistance-in-series model
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DOI：
10.1016/0376-7388(95)00234-0
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发表时间：
1996-03
影响因子：
9.5
通讯作者：
M. G. Liu;J. M. Dickson;P. Cote
中科院分区：
文献类型：
--
作者：
M. G. Liu;J. M. Dickson;P. Cote
串联阻力模型被几位作者用来描述稀溶液的渗透汽化过程。本文将该模型的应用扩展到包括支撑层(或蒸汽侧)阻力、膜溶胀和蒸气混合物中的组分浓度。与传统的传热传质方程类似，定义了膜顶层扩散系数的强化因子，既方便了方程的求解，又有助于解释溶胀对传质的影响。在推导的方程中描述了膜和溶液的操作条件、性质以及膜和组件的几何参数。然后在整个模块上对该模型进行数值积分。通过使用中空纤维组件处理含有挥发性有机化合物的废水的模拟，说明了扩展模型的使用。
The resistance-in-series model has been used by several authors to describe the pervaporation of dilute solutions. This paper extends the use of this model to encompass support layer (or vapour side) resistance, membrane swelling and component concentrations in the vapour mixture. The definition of an enhancement factor for the membrane top layer diffusion coefficient, similar to conventional heat and mass transfer equations, both facilitates solution of the equations and helps interpret the effect of swelling on transport. Operating conditions, properties of the membrane and the solution, and geometric parameters of the membrane and the module are represented in the derived equations. The model is then numerically integrated over the entire module. The use of the extended model is illustrated by simulations using a hollow fiber module for treatment of wastewater containing volatile organic compounds.