Hohenkammer Wastewater Treatment Plant, Schlipps, Bavaria, Germany

The Hohenkammer wastewater treatment plant is located in Schlipps, a locality within the municipality of Hohenkammer in the district of Freising, Bavaria, Germany. The plant serves a population of approximately 3,800 people and has a designed capacity of 6,000 cubic meters per day, with a current discharge volume of 545.35 cubic meters per day. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters, aligning with Germany's strict national standards for wastewater treatment. The treated effluent is discharged into a local water body that ultimately drains into the Isar River, a tributary of the Danube. The Danube flows into the Black Sea, making this plant part of a large international river basin. The advanced treatment helps protect downstream aquatic ecosystems, including the Danube Delta, a region of high ecological importance.

The plant's effluent enters a local stream that flows into the Amper River, a tributary of the Isar River. The Isar joins the Danube near Deggendorf, and the Danube ultimately discharges into the Black Sea. This watershed supports diverse aquatic life, including fish species such as the Danube salmon and various migratory birds. The advanced treatment at Hohenkammer reduces nutrient loading, helping to prevent eutrophication in downstream lakes and the Black Sea coastal zone.