Bad Dürrenberg Wastewater Treatment Plant, Sachsen-Anhalt, Germany

Bad Dürrenberg wastewater treatment plant is located in the Saalekreis district of Sachsen-Anhalt, Germany, serving the town of Bad Dürrenberg and surrounding areas. With a population equivalent of approximately 40,480, the plant falls into the medium agglomeration category under EU regulations. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent between 10,000 and 150,000 are required to have secondary treatment as a minimum. For sensitive areas, more stringent treatment may be required. The regulatory framework ensures appropriate treatment standards are met. The treated effluent from the plant is discharged into the local water system, which ultimately drains into the Saale River, a major tributary of the Elbe River. The Elbe flows into the North Sea, making this plant part of a large transboundary river basin that supports diverse aquatic ecosystems and important migratory fish species.

The plant discharges into the Saale River basin, which flows northward through Saxony-Anhalt to join the Elbe River near Barby. The Elbe then continues through Germany to the North Sea. The Saale and Elbe rivers support diverse aquatic life, including migratory fish such as Atlantic salmon and European eel. The region's watershed is ecologically sensitive due to its role in connecting freshwater habitats to the marine environment.