Sorup Wastewater Treatment Plant, Flatzby, Schleswig-Holstein, Germany

Sorup wastewater treatment plant is located in Flatzby, a locality within the municipality of Sörup in Schleswig-Holstein, Germany. The plant serves a population of 2,436 and operates with advanced treatment, ensuring high-quality effluent before discharge. As an advanced treatment facility, Sorup goes beyond secondary treatment to remove nutrients such as nitrogen and phosphorus, which is typical for plants in sensitive areas under the EU Urban Waste Water Treatment Directive. The plant has a designed capacity of 4,000 m³/day and currently discharges 683.27 m³/day, indicating ample reserve capacity. The treated effluent is discharged into local watercourses that drain into the Baltic Sea via the Schlei inlet, an ecologically important estuary. The plant's advanced treatment helps protect the sensitive coastal and marine environment of the Baltic Sea from eutrophication.

The plant discharges into local streams that flow into the Schlei, a narrow Baltic Sea inlet in Schleswig-Holstein. The Schlei is a nutrient-sensitive estuary that supports diverse aquatic life and is important for migratory birds. Advanced treatment at Sorup reduces nutrient loads, helping to mitigate eutrophication in the Baltic Sea.