Slawno Wastewater Treatment Plant, Mikuszyn, Poland

The Slawno wastewater treatment plant is located in Mikuszyn, within the gmina Kostrzyn in the wielkopolskie province of Poland. It serves a population of 782 and operates under secondary treatment, which is the standard biological treatment required by the EU Urban Waste Water Treatment Directive for agglomerations of this size. As a secondary treatment facility, the plant removes organic matter and suspended solids through biological processes. And it currently discharges 111.50 m³/day of treated wastewater. The plant is part of Poland's municipal wastewater infrastructure, which is regulated under national laws transposing the EU directive. The treated effluent is discharged into local watercourses that eventually drain into the Warta River basin, a major tributary of the Oder River. The Oder flows into the Baltic Sea, making the plant's operations relevant to the ecological health of the Baltic Sea catchment area. Proper treatment helps protect downstream aquatic ecosystems from nutrient pollution.

The plant discharges into the Warta River basin, which flows into the Oder River and ultimately reaches the Baltic Sea. The Baltic Sea is a semi-enclosed sea sensitive to nutrient enrichment, so effective wastewater treatment is crucial to reduce eutrophication risks. The local watershed supports diverse aquatic life and agricultural activities.