Sulecinek Wastewater Treatment Plant, Sulęcinek, Greater Poland Voivodeship

The Sulecinek wastewater treatment plant is located in Sulęcinek, a village in the Greater Poland Voivodeship (województwo wielkopolskie) of central Poland. It serves a small population of 1,371 people, reflecting its role in a rural municipality (gmina Krzykosy). The plant is part of Poland's municipal wastewater infrastructure, which is regulated under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant provides secondary treatment, which is the minimum standard required under the EU directive for agglomerations of this size (under 2,000 population equivalent). It has a designed capacity of 7,219 m³/day and currently discharges 195.48 m³/day of treated wastewater. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into a local water body, likely a small stream or river within the Warta River basin, which ultimately drains into the Oder River and then the Baltic Sea. The plant's operation helps protect local water quality and supports the ecological health of the downstream aquatic environment, which is part of a region known for agriculture and small watercourses.

The Sulecinek plant discharges into a local watercourse within the Warta River basin, a major tributary of the Oder River. The Oder flows into the Baltic Sea via the Szczecin Lagoon. The surrounding area is predominantly agricultural, and the plant's secondary treatment helps reduce nutrient loads that could otherwise contribute to eutrophication in downstream waters. The Baltic Sea is sensitive to nutrient pollution, making effective wastewater treatment crucial for regional marine health.