KA Adenstedt Wastewater Treatment Plant, Ilsede, Niedersachsen

KA Adenstedt was a municipal wastewater treatment plant located in the Adenstedt district of Ilsede, in the Landkreis Peine region of Niedersachsen, Germany. The plant served a small community of approximately 1,916 residents and had a designed capacity of 3,000 cubic meters per day. It is now closed and no longer operational. The plant provided secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. For settlements with a population equivalent between 2,000 and 10,000, the directive mandates secondary treatment or equivalent. The plant's discharge volume was recorded at 352.88 m³/day, indicating it operated well below its design capacity before closure. The treated effluent from KA Adenstedt would have been discharged into a local watercourse within the Weser river basin, which ultimately drains into the North Sea. The plant's location inland, away from coastal areas, reduced direct marine impact. Its closure means that wastewater from the area is now likely handled by a neighboring facility, ensuring continued compliance with German water quality standards.

The plant discharged into a tributary of the Fuhse River, which flows into the Aller and then the Weser River, eventually reaching the North Sea. The Weser basin supports diverse aquatic life and is an important ecological corridor in northern Germany. The plant's secondary treatment helped protect local streams from organic pollution, though its closure may have shifted treatment to a larger regional facility.