Projekt: RTC Warszawa

Subtitle for specific project part

itwh is implementing a multidisciplinary project for the Warsaw MPWiK for real-time control of the combined sewer system (RTC). The entire systems core system is ready, the implementation of the last key facilities (retention collectors, rebuilt transmission system under the Vistula River) are being completed, and at the same time we are all gaining operational experience while working on this complex project.

The implementation of the RTC system is gradual and driven by the availability of facilities that are relevant to this project. Warsaw's combined sewerage system comprises many kilometres of the pipes, as well as a number of key facilities. But does every metre or even kilometre of network need to be included? Of course not. A simplification of the linear infrastructure has been made to the main collectors and interceptors. To this network all impervious surfaces that are drained into the sewer have been assigned. Of course, the implementation of the connections and CSOs functioning along the network has been done as part of the system. Dry weather sewage from the entities that are served by this infrastructure has also been taken into account. Implemented main structures:

• • Czajka wastewater treatment plant with a capacity of up to 14.2 m³/s with an 80,000 m³ retention reservoir operating on the site,
• • Sewage pumping stations:
• - Żerań (pumping station in the direction of the WWTP o) with its retention tank (under implementation),
• - Nowodwory,
• - Saska Kępa I and Saska Kępa II,
• - Powisle,
• - Marymont
• • Supplementary Transmission System, i.e. an additional connection between the sewerage system of left-bank Warsaw and the sewerage system of right-bank Warsaw.

In parallel with the implementation of real-time control for facilities listed above, the client carried out the construction of new significant collectors and the reconstruction of the essential connection between the two Warsaw catchments. The Lindego Bis collector (DN 2.0m), Mokotowski Bis phase I (DN 2.8m) and Wiślany collector (DN 3.2, V=50,000 m³) with associated facilities and a further 2 siphon pipes (DN 2×1400) were constructed. These facilities have been built and are currently being implemented in local control systems. Finally, the time will come to include them in the RTC system. In parallel with other activities, more measuring points are being added all the time, providing valuable information for the real-time operation of the system. Such a gradual realisation of the facilities allows the successive steps towards a complete system to be finally realised. All those involved have the opportunity to gradually familiarise themselves with a system that is fundamentally different from the existing solutions and thus makes different, hitherto unrecognised demands and offers new opportunities.