Annaburg Wastewater Treatment Plant, Sachsen-Anhalt, Germany

The Annaburg wastewater treatment plant is located in the town of Annaburg, in the state of Sachsen-Anhalt, Germany. It serves a population of approximately 3,915 residents, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant is situated inland, far from coastal areas, and operates within Germany's stringent national water quality regulations. 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 5,000 m³/day and currently discharges an average of 450.78 m³/day of treated wastewater, indicating significant spare capacity for future growth. The treated effluent from the Annaburg plant is discharged into local watercourses that eventually drain into the Elbe River basin. The Elbe flows north through Germany to the North Sea, supporting diverse aquatic ecosystems and providing drinking water for downstream communities. The advanced treatment level helps minimize nutrient loading and protects the ecological health of the Elbe and its tributaries.

The Annaburg plant discharges into small streams that are part of the Elbe River basin. The Elbe River flows through Germany to the North Sea, supporting a variety of fish species and migratory birds. The region's watershed includes agricultural areas and wetlands that benefit from reduced nutrient pollution due to advanced treatment. Protecting water quality in this basin is crucial for maintaining biodiversity and ensuring safe drinking water supplies downstream.