随着人们对隐孢子虫等循环流中可能存在的污染物的关注，循环问题在美国和世界各地变得越来越重要。本文报告了一个项目，该项目旨在定义用于再循环的微滤（MF）和超滤（UF）反冲洗流的处理要求。中试研究的结果表明，通过均衡、凝固和澄清，在循环之前处理MF反洗水时不会出现卵囊或好氧孢子的累积。包括3个参考文献、表格和图表。

The issue of recycle is becoming increasingly important across the U.S. and around the world as attention focuses on contaminants that may be present in recycle streams, such as Cryptosporidium. This paper reports on a project that was intended to define the treatment requirements of microfiltration (MF) and ultrafiltration (UF) backwash streams intended for recycle. Findings from the pilot study showed that with equalization, coagulation, and clarification, no accumulation of oocysts or aerobic spores would occur in the treatment of MF backwash water prior to recycle. Includes 3 references, tables, figures.