膜更换需要仔细规划，并应涉及计算机建模、膜探测、膜剖面分析和水力评估，以记录电厂性能的修改。虽然许多现有的工厂已经进行了膜更换，但关于膜工厂运行的这一部分的文献中几乎没有发表任何信息。本文的目的是概述膜置换，并描述两个记录膜置换的案例研究。一个案例研究描述了中空纤维膜设施（佛罗里达州萨拉索塔）的膜置换，第二个案例研究描述了螺旋管的膜置换- 伤口膜设施（佛罗里达州马尔科岛）。包括表格，如图所示。

Membrane replacement requires careful planning, and should involve computermodeling, membrane probing, membrane profiling and hydraulic evaluations todocument modifications in plant performance. Although many existing plants haveundergone membrane replacement, little information has been published in theliterature on this component of membrane plant operation. The purpose of thispaper is to present an overview of membrane replacement, and describe two casestudies to document membrane replacement. One case study describes membranereplacement at a hollow fiber membrane facility (Sarasota, Florida), and a secondcase study describes membrane replacement at a spiral-wound membrane facility(Marco Island, Florida). Includes tables, figure.