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前言粒状滤料滤池在美国使用的头五十年期间改变很少,50年代和60年代进行了许多改革,例如较高的滤速,粗颗粒滤床(包括双层和多层滤料的应用),减速运行以及浅床低水头过滤装置。本文拟说明某特定滤池的费用是否合理的若干因素和限制条件,并说明如何确定所选用滤池的经济效率。过滤的总费用等于折旧费加年运行费。滤池和建筑物的基建费大约是处理厂总费用的15％到45％。爱克曼分析了某公司所设计的一个典型水厂的各种装置的有关费用,结
For the first 50 years, particulate filters have changed little in the United States. Many reforms were carried out in the 1950s and 1960s, such as higher filtration rates, coarse-grained filter beds (including double- and multi-layer filters). Application), slow running and shallow bed low head filtration device. This article proposes several factors and limitations for the reasonableness of the cost of a particular filter, and explains how to determine the economic efficiency of the selected filter. The total cost of the filter equals the depreciation fee plus the annual operating fee. The capital cost of filters and buildings is approximately 15% to 45% of the total cost of the treatment plant. Ekman analyzes the costs associated with various installations of a typical water plant designed by a company.