KA Hambuhren Wastewater Treatment Plant, Oldau, Niedersachsen

KA Hambuhren is a municipal wastewater treatment plant located in Oldau, within the municipality of Hambühren in the Landkreis Celle district of Niedersachsen, Germany. The plant serves a population of approximately 10,214 people, classifying it as a medium-sized agglomeration under German and EU regulations. As a German wastewater treatment plant, KA Hambuhren operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's treatment process and capacity are managed to meet national standards set by the Wasserhaushaltsgesetz (WHG) and relevant state regulations. The treated effluent from KA Hambuhren is discharged into the Aller River, a major tributary of the Weser River. The Aller flows through the Lüneburg Heath region and eventually joins the Weser near Verden, which then drains into the North Sea. The plant plays a key role in protecting the water quality of the Aller and downstream ecosystems.

KA Hambuhren discharges into the Aller River, which flows through the Lüneburg Heath and joins the Weser River near Verden. The Weser then empties into the North Sea. The Aller watershed supports diverse aquatic life and is an important corridor for migratory fish. The plant's operations help maintain water quality in this ecologically sensitive river system.