Mogilno Wastewater Treatment Plant | Serving Mogilno, Poland

The Mogilno wastewater treatment plant is located in the town of Mogilno, within the kujawsko-pomorskie province of Poland. It serves a population of around 13,028 people, making it a medium-sized agglomeration under Polish and EU classifications. The facility is part of the municipal infrastructure managed by local authorities. As a plant serving over 10,000 population equivalent, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum standard. Polish regulations transpose this directive, and plants of this scale are typically subject to national water permits that set effluent limits for biochemical oxygen demand, suspended solids, and nutrients. The treatment process likely includes biological treatment stages to meet these standards. The treated effluent is discharged into a local watercourse that flows into the Noteć River basin, part of the Oder River catchment, which ultimately drains into the Baltic Sea. The plant plays a key role in protecting the region's surface waters from nutrient pollution and supporting aquatic life in downstream ecosystems.

The plant discharges into a tributary of the Noteć River, which flows through the Wielkopolska region and joins the Warta River, a major tributary of the Oder River. The Oder drains into the Baltic Sea via the Szczecin Lagoon. This watershed supports diverse aquatic habitats and is important for migratory fish species. The region's agricultural land use means nutrient removal at the plant helps reduce eutrophication risks in downstream waters.