KA Hanigsen - Advanced Wastewater Treatment Plant in Uetze, Niedersachsen

KA Hanigsen (plant ID 2530172170) is an advanced wastewater treatment facility located in the Härkenroth area of Uetze, within the Region Hannover, Niedersachsen, Germany. The plant serves a population of about 6,895 and has a designed capacity of 11,000 m³/day, with a reported discharge volume of 993.6 m³/day. As an advanced treatment plant, it goes beyond secondary treatment to remove nutrients and other pollutants, ensuring high effluent quality. The plant operates under Germany's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), the directive requires appropriate treatment, and Germany typically mandates advanced treatment for sensitive areas. The plant's advanced treatment level suggests it likely includes biological nutrient removal to protect receiving waters. The treated effluent from KA Hanigsen is discharged into local watercourses that ultimately drain into the North Sea via the Weser or Elbe river systems. The region's water bodies support diverse aquatic life and are important for both ecology and human use. The plant's advanced treatment helps minimize nutrient loading, contributing to the protection of downstream ecosystems.

KA Hanigsen discharges into local streams within the Aller-Leine river system, which flows into the Weser and eventually the North Sea. The surrounding area includes agricultural land and small water bodies that support fish and macroinvertebrate communities. Advanced treatment reduces nutrient inputs, helping to prevent eutrophication in downstream waters and maintaining water quality for aquatic habitats.