过滤是地表水处理厂微生物和病原体控制的主要障碍之一。虽然人们对水处理中过滤的目的和设计有着很好的理解，但为了最大限度地生产高质量饮用水，对过滤器的设计和操作进行优化往往是不现实的。许多因素会影响水处理厂的过滤器性能和生产率，包括混凝性能、预氧化、助滤剂、过滤器加载速率和温度。本文讨论了这些因素中的每一个。通过三个中试项目的案例研究，展示了过滤器设计和预处理的差异如何影响过滤器的生产率和性能。 包括表格、数字。

Filtration is one of the main barriers for microbial and pathogen control at surfacewater treatment plants. Although the purpose and design of filtration in water treatment is well understood, optimization of the design and operation of filters for maximum production of high quality drinking water often is not. Many factorscan affect filter performance and productivity in a water treatment plant, including coagulation performance, preoxidation, filtration aids, filter loading rates, and temperature. This paper discusses each of these factors. Case studies from three pilot testing programs are used to show how differences in filter design and pretreatment can affect the productivity and performance of filters. Includes tables, figures.