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Sewage Pumping Station and Pre-Treatment System for INVESTA Plant in Wałcz

Inwestor / Sanitary, Heating, and Gas Installation Company – Marian Madej

Wałcz

2022

Sewage Pumping Station and Pre-Treatment System for INVESTA Plant in Wałcz plus
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The project included the construction of a sewage pumping station and a pre‑treatment system for the INVESTA production and storage facility in Wałcz. The pumping station was housed within a modular, prefabricated reinforced-concrete DZB tank. This implementation forms an integral part of the stormwater and industrial wastewater treatment infrastructure.

Scope of work

Ecol‑Unicon carried out the following construction works:

 

  • delivery and installation of the pumping station body (DN 6000);

  • delivery and installation of the pumping station equipment and hydromechanical commissioning;

  • supply of a DN 2000 sedimentation tank with a volume of 3.0 m³;

  • high-performance ESK‑B II 20/200/315 coalescence separator with bypass.

Applied solutions

  • Prefabricated DZB tank – a modular, reinforced-concrete tank offering high tightness and structural strength, easy to assemble and configurable according to local conditions (including driveable surfaces);

  • The pumping station body of diameter DN 6000 enables handling of high flows;

  • The sedimentation tank with parameters DN 2000, V = 3.0 m³ is a typical solution used in stormwater or industrial sewer systems for preliminary solids separation;

  • The ESK‑B II 20/200/315 coalescence separator is a high-efficiency Class I device, equipped with a sedimentation chamber, coalescence filter, and bypass, designed to treat stormwater containing hydrocarbons and suspended solids at a nominal flow of 20 dm³/s. Thanks to its compact concrete body and large oil retention capacity, the separator complies with PN‑EN 858 and provides effective environmental protection.