Schenefeld Wastewater Treatment Plant | Schleswig-Holstein, Germany

The Schenefeld wastewater treatment plant is located in the municipality of Schenefeld, in the Steinburg district of Schleswig-Holstein, Germany. It serves a population of approximately 2,500 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant is situated inland, more than 10 km from the coast, and its operations are part of the region's water management infrastructure. The plant provides advanced treatment, which goes beyond the secondary treatment standard required by the EU UWWTD for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive water bodies. The plant has a designed capacity of 3,800 m³/day and currently discharges an average of 398 m³/day, indicating significant reserve capacity. As a German facility, it operates under the national implementation of the EU UWWTD, with oversight from the state of Schleswig-Holstein. The treated effluent is discharged into local watercourses that drain into the North Sea via the Elbe River system. The region's watershed supports diverse aquatic life and is part of a larger ecological network. The advanced treatment helps minimize nutrient loading, protecting downstream habitats and water quality in the Elbe estuary and the North Sea.

The plant discharges into the local drainage network, which flows into the Stör river, a tributary of the Elbe. The Elbe River then carries the water to the North Sea, a sensitive marine environment. The region supports diverse aquatic species and migratory fish. Advanced treatment reduces nutrient pollution, helping to prevent eutrophication in downstream waters.