Method for optimizing volume-flow parameters of rainwater treatment facilities in residential and social-business areas (1^st type surface runoff)

Summary

The main provisions of developing the method for the optimization calculation of volume-flow parameters of the treatment facilities for surface (rainwater) runoff of the 1^st type generated in residential and social-business areas, as well as on industrial sites, the runoff from which does not contain significant quantities of pollutants with toxic properties are presented. It is shown that the use of the proposed method with account of the data on the actual series of rains and periods between runoff-generating precipitation over a long-term period, allows reducing the design capacity of the treatment facilities by more than one and a half to two times with a corresponding reduction in capital and operating costs provided full compliance with the requirements of the current design rules and provisions of sanitary and environmental legislation. The method may be relevant for investors in industrial, civil and environmental construction, design organizations, construction and environmental assessment bodies, especially given the implementation of large-scale programs for the development and upgrade of storm water drainage systems in the Russian Federation.

Key words

accumulating tank capacity , capacity of treatment facilities , surface runoff of the 1st and 2nd type , annual series of daily precipitation layers and rainwater runoff

Method for optimizing volume-flow parameters of airport surface runoff treatment facilities

Summary

Presented in the paper are the main provisions of developing a method for the optimization calculation of volume-flow parameters of surface runoff treatment facilities of the Russian airports, that belong to the category II of industrial facilities in terms of their negative impact on the environment. It is shown that using the proposed method with account of the period of de-icing of the aircrafts and airport territory provides for further reducing the design capacity of the treatment facilities by 1.7–2.45 times and the accumulation tank capacity by 1.2–2.1 times. At the same time, capital and operating costs are reduced with full compliance with the basic requirements of the current design rules and sanitary – environmental legislation.

Key words

accumulating tank capacity , capacity of treatment facilities , ethylene glycol , aircraft de-icing with deicing fluid , surface runoff of the 1st and 2nd type , annual series of daily precipitation layers and volumes of rain and melt water