随着膜处理技术的发展，反渗透（RO）已迅速发展成为一种成熟可靠的技术，应用于各种水和废水处理。尽管有这些进步，反渗透膜还是容易受到生物污染（生物污染），这最终限制了这种先进处理工艺的成本效益。为了减缓生物污垢的发展，通常会在给水中加入氯和其他氧化剂。虽然这种做法通常是有效的，但它可能会导致薄膜复合（TFC）聚酰胺反渗透膜的不分级，这种膜易受强氧化化学剂的攻击。因此，膜性能会很快受到影响。 新设计的聚合物膜不断被设计为能够承受恶劣的化学环境，这与不断添加氯和其他氧化剂来抑制膜生物污染有关。耐化学腐蚀的反渗透膜将大大降低或可能消除与昂贵的预处理过程和频繁的膜清洗相关的成本。已开发出一种实验性TFC膜，该膜是由环戊烷四羧酸（CPTC）的六种可能的酯异构体之一与间苯二胺（MPD）之间的界面反应生成的，能够承受氯化给水的长期运行。使用平板膜进行评估，平板膜与经过五级处理的二级城市废水一起预处理- 阶段澄清过程。出于比较目的，对实验和商用TFC膜进行了评估。膜渗透通量和盐截留率测量结果表明，与商用复合膜相比，CPTC膜具有耐氯性和低污染性。这些发现促进了CPTC膜的持续现场评估，也将对其进行介绍和讨论。包括6个参考文献、表格、图表。

With recentadvances in membrane treatment technologies, reverse osmosis (RO) has quicklydeveloped into a mature and reliable technology utilized in a variety of waterand wastewater applications. Despite these advances, RO membranes are prone tobiological fouling (biofouling), which ultimately limits the cost-effectivenessof this advanced treatment process. In an effort to slow the progression ofbiological fouling, chlorine and other oxidizing agents are routinely introducedin the feedwater. While this practice is generally effective, it can result indegradation to thin-film composite (TFC) polyamide RO membranes, which aresusceptible to attack by strong oxidizing chemical agents. As a result, membraneperformance can be quickly compromised. Newly designed polymer membranes arecontinually being designed to withstand the harsh chemical environmentsassociated with continual addition of chlorine and other oxidizing agents used tosuppress membrane biofouling. A chemically tolerant RO membrane wouldsubstantially reduce or possibly eliminate the costs associated with expensivepretreatment processes and frequent membrane cleanings. An experimental TFCmembrane, created by an interfacial reaction between one of the six possiblestereoisomers of cyclopentanetetracarboxylic (CPTC) acid chloride andm-phenylenediamine (MPD), has been developed to withstand prolonged operation onchlorinated feedwaters. Evaluations were conducted using flat-sheets of membranefed with secondary municipal wastewaters pretreated by a five-stage clarificationprocess. Experimental and commercial TFC membranes were evaluated for comparativepurposes. Results from membrane permeate flux and salt rejection measurementsindicate that the CPTC membranes exhibited chlorine resistance and low foulingpropensities when compared to commercial composite membranes. These findings havepromoted continued field evaluations of the CPTC membrane, which will also bepresented and discussed. Includes 6 references, tables, figures.