Optimal reconstruction of water supply network under conditions of reduced water consumption

Roman V Chupin,Viktor R Chupin,Minh Ngoc Pham,N.N Novitsky,M Negnevitsky,V.V Tarasevich,C Sarica,S.A Miedema,V.R Chupin,V.A Stennikov,M.G Sukharev,B Serttter,F.H Mirelli,L.B Korelstein,E Todini,E Khaltar

doi:10.1051/e3sconf/201910203005

Abstract

In recent years, due to the country's energy conservation policies in cities and towns, there has been a steady decline in the specific water consumption. Many industrial enterprises switched to water-saving technologies and circulating water supply systems. Such a policy favorably affects the environmental safety of territories by reducing wastewater discharges into water bodies and saves energy for pumping water and wastewater. At the same time, due to a decrease in the speed of water movement, its quality indicators deteriorate and stagnant zones appear, and due to the reduction of water consumption, pumping stations began to operate in low efficiency modes. The article proposes to solve this problem by decommissioning certain sections of the network and facilities, which improve the speed of other pipelines and provide pumping stations with the highest efficiency. For this purpose, a technique has been developed to optimize flows in existing water supply systems and its implementation in the Trace – BK software package. A new method of optimizing operating costs for water supply systems in the face of decreasing water consumption is proposed. This technique makes it possible to identify inefficient sections of network and take them out of operation while improving the operation speed of other pipeline and bring the operation of pumping stations to the mode with the highest efficiency.

Highlights

Under the conditions of developed socialism, it was believed that the more the urban population consumes water, the greater the degree of improvement. This philosophy contributed to the growth of specific water consumption, including its irrational component
It is proposed to solve this problem by decommissioning certain sections of the system and facilities, which improve the speed of other pipelines and provide pumping stations with the highest efficiency
This paper proposes the following methodology, based on the works [17-19, 21]: 1) a mathematical model of the existing water supply network is being formed, its adequacy is checked on the basis of hydraulic calculations [22], operating costs are determined, pipeline sections with speeding violations are identified; 2) based on the model of the existing water supply system, we will build a transportation network

Summary

Introduction

Under the conditions of developed socialism, it was believed that the more the urban population consumes water, the greater the degree of improvement. This philosophy contributed to the growth of specific water consumption, including its irrational component. By 2000, the average water consumption in the country was 400 l/person per day, and by cities and towns, it reached 800 or more. Taking into account the growing water consumption, the project norms increased, and for the development of the feasibility study stage they reached 500-600 l/person per day and on the basis of them, new pipelines, pumping stations, sewage treatment plants were designed and constructed. Since 2000, the specific water consumption began to decrease.

Methods

Results

Conclusion