Oelde Wastewater Treatment Plant, Oelde, Nordrhein-Westfalen, Germany

The Oelde wastewater treatment plant is located in the town of Oelde, in the district of Warendorf, Nordrhein-Westfalen, Germany. It serves a population of approximately 39,772, classifying it as a medium agglomeration under EU regulations. The plant is part of the region's municipal wastewater infrastructure, handling domestic and industrial flows from the local community. As a German facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations between 10,000 and 150,000 population equivalent. For inland plants like Oelde, the directive also mandates appropriate treatment to protect receiving water bodies. The plant's discharge is regulated by the German Water Resources Act (Wasserhaushaltsgesetz) and state-level permits issued by the Bezirksregierung or local authority. The treated effluent from the Oelde plant is discharged into a local watercourse that flows into the Ems river system, ultimately reaching the North Sea. The plant plays a crucial role in maintaining water quality in the region, protecting downstream aquatic ecosystems and supporting the ecological health of the Ems basin.

The Oelde plant discharges into a tributary of the Ems river, which flows northward through Nordrhein-Westfalen and Lower Saxony before entering the North Sea near Emden. The Ems basin supports diverse aquatic life, including fish species such as salmon and trout, and provides important habitat for migratory birds. The plant's treatment performance is critical to preventing nutrient enrichment and maintaining the ecological balance of this river system.