Schaftlarn Wastewater Treatment Plant, Schäftlarn, Bavaria, Germany

Schaftlarn wastewater treatment plant is located in the municipality of Schäftlarn, in the district of Munich, Bavaria, Germany. The plant serves a population of around 5,917, making it a small to medium agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). It is situated inland, away from coastal areas, and treats wastewater from the local community. The plant employs advanced treatment processes, which go 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 7,500 m³/day and currently discharges an average volume of 988.31 m³/day, indicating ample capacity for future growth. The treated effluent is discharged into a local water body that ultimately drains into the Isar River, a major tributary of the Danube. The Isar flows through Munich and into the Danube, which reaches the Black Sea. The advanced treatment helps protect the Isar's water quality, supporting aquatic life and recreational use downstream.

The plant discharges into a local stream that feeds into the Isar River, which flows through Munich and joins the Danube. The Danube is Europe's second-longest river, draining into the Black Sea. The Isar is ecologically sensitive, supporting diverse fish populations and serving as a corridor for migratory birds. Advanced treatment at Schaftlarn reduces nutrient loading, helping to prevent eutrophication in downstream waters.