Optimization of hydrological calculations of surface and drainage water runoff treatment systems

Emperor Alexander I St.Petersburg State Transport University, 9 Moskovsky avenue, Saint Petersburg, 190031, Russian Federation

^* Corresponding author: pol1nom@yandex.ru

Abstract

Objective: to develop a method for determining the optimal hydrological characteristics of treatment systems for polluted surface and drainage water. Methods: Pollutant balance equation is applied. For comparison, the technique of the Vodgeo Research Institute was used. The costs of cleaning and environmental damage from pollution of watercourses under various options of water content of the year and parameters of treatment facilities were investigated. The types of pollutants (suspended materials and petroleum products) and the effluent separation factor in the separation chambers were selected as the main parameters. Results: the method of optimization calculations of hydrological characteristics of surface and drainage water treatment systems has been developed, considering the probability of runoff in high waters and floodwaters, costs of construction and operation of treatment facilities and damage from watercourse pollution. Optimization calculations of several options for treatment of melt, rain and drainage runoff are performed as an example. Practical significance: the method of optimization calculations of wastewater will allow more substantiated and more accurate determination of the required degree of wastewater treatment, productivity and parameters of treatment facilities, and in some cases to reduce the degree of pollution of watercourses.