Granowo Wastewater Treatment Plant | Wielkopolska, Poland

The Granowo wastewater treatment plant is located in the town of Granowo, within the Wielkopolska region of Poland. It serves a population of about 5,877, classifying it as a small to medium agglomeration under Polish regulations. The plant is situated in a rural area, contributing to local sanitation and water quality. The plant provides secondary treatment, which is the standard required by 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 6,782 m³/day and currently discharges an average volume of 838 m³/day, indicating it operates well below its capacity. The treated effluent is discharged into local watercourses that eventually drain into the Oder River basin, which flows into the Baltic Sea. The plant plays a key role in protecting the local watershed from pollution, supporting aquatic life and downstream ecosystems.

The Granowo plant discharges into small streams that are part of the Oder River basin, which ultimately flows into the Baltic Sea. The region's watershed supports diverse aquatic habitats and is important for migratory fish species. Effective wastewater treatment helps prevent eutrophication and maintains water quality in this sensitive Baltic catchment area.