本文基于中空纤维膜轴向不均污染理论，运用响应曲面法建立了浸没式中空纤维超滤膜组件不同通量状态下，膜组件过滤过程中的膜阻力关于时间、空间的动态数学模型，对建立的模型进行了显著性分析及实验验证，并对中空纤维膜组件进行了数学优化。通过验证实验发现，发现实测数据与膜阻力动态数学模型计算值基本一致。通过对数学模型分析发现：在次临界通量状态下，膜丝长度及运行时间均存在最佳值；在临界和超临界状态下，膜阻力及运行时间与膜丝长度成正比。
 

Based on the theory of membrane foulingasymmetric distributionalong axial hollow fiber membrane,the dynamic models of membrane resistance related to time and space under variation flux condition in ultrafiltration of hollow fiber membrane were established by Response Surface Methodology (RSM). Theremarkableanalysis and experiment have been carried out to verify this model.The optimization of the hollow fiber membrane module was performed using the model. The verification suggests thatmodel calculated value agrees with experimental valuewell.Analysis of this model showedthat in the subcritical flux condition, there was an optimum value of membrane fiber length and operation time.In the critical and supercritical state,membrane resistance is proportional to the fiber length and operational time.

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