Lubin Wastewater Treatment Plant, Lubin, Poland | Secondary Treatment

The Lubin wastewater treatment plant is located in the village of Lubin, within the gmina Kikół, powiat lipnowski, in the kujawsko-pomorskie voivodeship of Poland. It serves a small population of 1,285 people, classifying it as a small agglomeration under Polish and EU regulations. The plant is situated inland, away from coastal areas, and treats municipal wastewater from the local community. The plant provides secondary treatment, which is the minimum standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant has a designed capacity of 2,663 m³/day and currently discharges an average of 183.22 m³/day, indicating significant spare capacity for future growth or seasonal variations. The treated effluent is discharged into local watercourses that eventually drain into the Vistula River basin, which flows northward into the Baltic Sea. The plant plays a key role in protecting the local watershed from untreated sewage, supporting water quality in the region's rivers and downstream ecosystems. Its operation is subject to Polish environmental permits aligned with EU directives.

The Lubin plant discharges into local streams that are part of the Vistula River basin, Poland's largest river system. The Vistula flows through central Poland and empties into the Baltic Sea via the Gdańsk Bay. The watershed supports diverse aquatic life and is an important ecological corridor for migratory fish. The plant's secondary treatment helps reduce nutrient loads, which is critical for preventing eutrophication in the Baltic Sea, a sensitive marine environment.