本文讨论了为确定所选工艺变量对慢砂过滤处理效率的影响而进行的研究。使用了由六个慢速砂滤柱组成的中试装置。研究表明，砂床内的生物活性是影响参数去除效率的重要因素。研究了温度、砂床深度和砂粒大小对总大肠菌群过滤效率的影响。浊度、贾第虫囊肿和标准平板计数细菌的去除率用于获得关于不同试验条件影响的额外信息。包括11个参考文献、表格、图表。

This article discusses research conducted to determine the influences of select process variables on the treatment efficiency of slow sand filtration. A pilot plant consisting of six slow sand filter columns was used. The study indicated that biological activity within the sand bed is an important factor in parameter removal efficiency. The influences of temperature, sand bed depth, and sand size on filtration efficiencies for total coliform bacteria were delineated. Percent removals of turbidity, Giardia cysts, and standard plate count bacteria were used to gain additional information on the effects of different test conditions. Includes 11 references, tables, figures.