Polyamide (PA) reverse osmosis (RO) membranes suffer performance decay when exposed to oxidizing species, limiting their lifetime and increasing operation costs. This article aims at reviewing the effect of chlorine species on the performance and characteristics of PA-membranes. Experimental evidence supporting different competing mechanisms for chlorine-polymer interaction will be presented, together with the influence of operational parameters. Additionally, an overview of different modification methods that exist to render PA-membranes more chlorine-resistant is given.

中文翻译：

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反渗透（RO）聚酰胺膜的耐氯性

聚酰胺（PA）反渗透（RO）膜在暴露于氧化物质时会降低性能，从而限制其使用寿命并增加运营成本。本文旨在综述氯物种对PA膜性能和特性的影响。将介绍支持氯-聚合物相互作用的不同竞争机制的实验证据，以及操作参数的影响。另外，给出了使PA膜具有更强的耐氯性的不同改性方法的概述。