Current state and prospects of water supply and sanitation systems, methods for their calculation, design, and operation

Abstract

The paper considers modern problems of developing a technology for managing water supply and sanitation systems. The main results achieved in this sphere are presented, and objectives for further research are outlined. Due to the ongoing processes of digitalization and intellectualization of social and technological systems, a new concept of design and operation management, development and conservation of water supply and sanitation systems of settlements, cities, and buildings is proposed. This concept is based on the creation of digital twins of all system and subsystem elements and their management in real and virtual space using cloud technologies and specific software systems. Forthese purposes, water supply and sanitation systems are considered from the perspective of general principles of organization, hydraulic calculation, formation of operation modes, the probabilistic nature of water withdrawals and wastewater inflows, uncertainty in the behavior and prospective loads of facilities, along with other characteristics typical of large and complex systems. The paper presents the main tasks for calculating and designing water supply and sanitation systems and briefly describes possible solutions, implemented in the relevant software packages, tested in practice in the actual process of designing, operating, and maintenance of piping systems of a housing and utilities infrastructure. All optimization models are based on the lifecycle cost criteria for water and sanitation systems.