Pre-project analysis of drinking water treatment facilities

Summary

The method of pre-project analysis of constructing efficient water treatment facilities is suggested that provides for predicting their parameters with account of the advanced water treatment technologies and equipment as well as the advanced design and construction technologies. On the basis of the technical specifications and selected process flow scheme the relative modification of the earlier designed version is carried out. Then the design engineer can calculate approximate quantitative characteristics of the future facilities (budget value, footprint area, electrical rating) in a relatively short span of time. For every parameter in the process flow scheme the objects are chosen (buildings and facilities) that determine the basic value of the given parameter. With the use of the system analysis method the dependence of the variation of the parameters of the facilities from the capacity was determined. Thus, in general at close values of the process and hydraulic characteristics of the facilities being designed and the designed version the specific area and specific design capacity of the process flows will be slightly increasing with the increase of the plant capacity; and for the preliminary calculations they can be considered as constant. The unit cost of the facilities is described with logarithmic relationships; and knowing the unit cost of the reference unit the cost of constructing the water treatment unit being designed can be calculated.

Key words

pre-project analysis , drinking water treatment facilities , parameters of the facilities , specific area , specific design capacity , unit cost of the facilities