当使用氯等氧化剂时，用于控制生物污染物的反渗透预处理可能存在风险。氯会缩短醋酸纤维素膜的寿命，破坏薄膜复合膜。紫外线消毒技术已被证明是反渗透预处理的有效消毒剂，如本文介绍的两个案例所示。介绍了紫外线消毒技术的发展及其工作原理。

Pretreatment of reverse osmosis for control of biological foulants can be risky when using oxidants such as chlorine. Chlorine can shorten the life of cellulose acetate membranes and destroy thin film composite membranes. Ultraviolet disinfection technology has been proven an effective disinfectant for the pretreatment of reverse osmosis, as shown in the two case histories presented in this paper. Background information on the development of UV disinfection and how it works are given.