Reconstruction and expansion of the wastewater treatment plant in the Błaszki Municipality
Inwestor / Błaszki Municipality
Borysławice (Łódzkie Voivodeship)
2023 - 2025
The wastewater treatment plant in Borysławice serves the local sanitary sewerage system in the Błaszki Municipality. After more than two decades of operation and a significant increase in the number of connections, modernization was required to adapt the facility to increased hydraulic and organic loads.
The objective of the investment was not only to modernize worn infrastructure, but above all to prepare the treatment plant for the further development of the sewerage system. Key goals included increasing reliability, automating technological processes, and achieving an average treatment capacity of 750 m³/day. The modernization was also intended to ensure proper and stable wastewater treatment prior to discharge into the receiving water body—regardless of seasonal variations in raw wastewater composition—in compliance with applicable national regulations and European Union standards.
As the General Contractor, we delivered the investment under a “design and build” formula, taking responsibility for the entire scope of works—from design, through construction and technological works, to commissioning of the treatment plant.
Scope of work
- preparation of full design documentation
- reconstruction of the first-stage treatment system for delivered (trucked-in) wastewater
- construction of a mechanical wastewater treatment node with a screen–grit separator
- construction of a retention and equalization tank with an active capacity of approx. 100 m³
- modernization of the bioreactor, including reconstruction of the aeration system and replacement of the complete set of technological equipment
- construction of a new blower station
- execution of a new, complete control and power supply system for the treatment plant
- construction of inter-facility networks and reconstruction of technological systems
- technological start-up and commissioning of the facilities for continuous operation
- construction of internal roads and technological access routes
Implemented solutions
The treatment plant was reconstructed as a mechanical-biological installation based on low-load activated sludge technology, equipped with automatic control systems and modern process equipment. The modernization included comprehensive measures aimed at improving technological efficiency and ensuring stable operating conditions for the entire system.
The existing infrastructure was rebuilt and supplemented with new technological facilities, including a mechanical treatment node with a screen–grit separator and a retention–equalization tank.
The investment also included expansion of inter-facility networks, comprehensive technological start-up, and implementation of a new control and automation system. The applied solutions enable ongoing monitoring of operating parameters and adjustment of the plant’s performance to changing wastewater inflow conditions.
How was the project in Borysławice implemented?
In this project, the key objective was not only to increase the treatment plant’s capacity, but above all to improve its efficiency and reliability in the long term. Our goal was to ensure that the designed technological solutions not only meet current requirements, but are also resilient to variability in wastewater inflow and future expansion of the sewerage network. Particular emphasis was placed on optimizing the treatment of delivered wastewater and on process automation, which will significantly facilitate operation of the facility.
Wojciech Tomaszewski, Project Manager