UDC 628.221
DOI 10.35776/VST.2025.05.05
Volkov Sergei, Luk’ianchuk Maksim, Zhukova Anastasiia, Solokhin Anton, Kuz’min Valentin, Zhitenev A. I., Rublevskaya O. N., Gvozdev V. A., Erofeev Vasilii, Kostenko I. G., IGNATCHIK V. S., Ignatchik S. Iu., Kuznetsova N. V., Seniukovich Mikhail, Eshchenko Andrei
Justification of the optimum alternative of the wastewater disposal system of St. Petersburg adapting to the conditions of the joint effect of urbanization and climate change
Part 3. Estimation of the economic efficiency of an automated wastewater management system
Summary
In order to adapt wastewater disposal systems to the joint effect of urbanization and climate change, traditional static measures are applied in global practice based on the use of «gray-green» technologies inclusive of dividing combined systems into separate ones, as well as dynamic solutions using real-time control – Real Time Control (RTC). The experience of implementation shows that none of the adaptation measures can provide for 100% efficiency. Therefore, overflows in wastewater disposal systems cannot be prohibited (this provision is enshrined in the legislation of almost all countries of the world). At the same time, the RTC strategy is the most cost-effective measure, however, limited in efficiency (20–30%). Therefore, in case the efficiency of RTC measures is insufficient, combining them with intermediate storage tanks is advisable. In this regard, an estimation of the economic efficiency of using an automated system for wastewater disposal management in St. Petersburg in real time was carried out. The main method of research was hydraulic dynamic modeling, with estimating: the efficiency of the storage tank control in real time; the efficiency of transferring wastewater between three sewer zones of St. Petersburg in real time, taking into account the parameter characterizing the uneven rainfall distribution areally.
Key words
surface runoff disposal system , flooding , adaptation measures , automated wastewater management system
