Belgern Wastewater Treatment Plant, Belgern-Schildau, Saxony, Germany

The Belgern wastewater treatment plant is located in the town of Belgern-Schildau, in the state of Saxony, Germany. It serves a population of approximately 6,200 residents, classifying it as a small to medium agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant operates with advanced treatment, which goes beyond the secondary treatment standard required for inland discharges under the directive. With a designed capacity of 6,250 m³/day and a reported discharge volume of 449.40 m³/day, the plant has substantial spare capacity. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive water bodies. As a German facility, it is subject to the national wastewater ordinance (Abwasserverordnung) and must meet strict effluent limits. The plant discharges into a local watercourse that ultimately drains into the Elbe River basin. The Elbe flows through Saxony and into the North Sea, supporting diverse aquatic ecosystems. The advanced treatment helps minimize nutrient loading and protects downstream water quality in the Elbe and its tributaries.

The plant discharges into a tributary of the Elbe River, which flows north through Germany to the North Sea. The Elbe basin supports diverse aquatic life, including fish species such as salmon and eel, and provides important habitat for migratory birds. Advanced treatment at this plant reduces nutrient and pollutant loads, helping to maintain the ecological health of the river system and the downstream estuary.