Rogozno Wastewater Treatment Plant: Serving Gaj Wielki, Poland

The Rogozno wastewater treatment plant is located in Gaj Wielki, within the powiat szamotulski of województwo wielkopolskie, Poland. It serves a population of approximately 10,343 people, classifying it as a medium agglomeration under Polish and EU regulations. The facility is situated inland, away from coastal areas, and its operations are integrated into the regional water management infrastructure. As a plant serving over 10,000 people, Rogozno is subject to the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment as a minimum for such agglomerations. In sensitive areas, more stringent treatment may be mandated. The regulatory framework ensures compliance with national and EU standards for effluent quality. The treated wastewater from Rogozno is discharged into local watercourses that ultimately drain into the Warta River basin, a major tributary of the Oder River. The Oder flows into the Baltic Sea, making the plant's performance important for the ecological health of both regional rivers and the marine environment. The surrounding area is characterized by agricultural land and small settlements, with the plant playing a key role in protecting local water quality.

The Rogozno plant discharges into the Warta River basin, which flows into the Oder River and then into the Baltic Sea. This watershed supports diverse aquatic life and is an important ecological corridor in western Poland. The plant's effluent contributes to the nutrient load in the river system, making effective treatment crucial for preventing eutrophication in downstream water bodies.