OczyszczalniaWierzonka - Advanced Wastewater Treatment in Wierzonka, Poland

OczyszczalniaWierzonka is a wastewater treatment facility located in Wierzonka, a village in the gmina of Swarzędz, powiat poznański, in the Wielkopolskie region of Poland. The plant serves a small population of 173 residents and has a designed capacity of 235 cubic meters per day, with an actual discharge volume of 24.67 cubic meters per day. The plant operates at an advanced treatment level, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. This advanced treatment likely includes nutrient removal to protect sensitive receiving waters, as is common in Polish plants under the national implementation of EU directives. The treated effluent is discharged into local watercourses that ultimately drain into the Warta River basin, a major tributary of the Oder River, which flows into the Baltic Sea. The plant's advanced treatment helps safeguard the ecological health of these waters, supporting biodiversity and water quality in the region.

The plant discharges into the Warta River catchment, part of the Oder River basin that flows into the Baltic Sea. The region's waters support diverse aquatic life and are important for migratory fish species. Advanced treatment at this plant helps reduce nutrient loads, protecting downstream ecosystems from eutrophication.