KA Cremlingen - Advanced Wastewater Treatment Plant in Cremlingen, Niedersachsen

KA Cremlingen is a municipal wastewater treatment plant located in Cremlingen, within the Landkreis Wolfenbüttel district of Niedersachsen, Germany. The plant serves a population of approximately 2,923 residents and has a designed capacity of 7,000 cubic meters per day, with an average discharge volume of 605.29 m³/day. As an advanced treatment facility, KA Cremlingen goes beyond secondary treatment to remove nutrients such as nitrogen and phosphorus, meeting the stringent requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), the directive mandates secondary treatment, but Germany often requires advanced treatment in sensitive areas to protect water quality. The plant's treated effluent is discharged into local water bodies within the Weser river basin, which ultimately drains into the North Sea. The facility plays a key role in safeguarding the ecological health of the region's streams and rivers, supporting aquatic life and downstream water quality.

KA Cremlingen discharges into the local drainage network within the Weser river basin, which flows northward through Niedersachsen to the North Sea. The region's water bodies support diverse aquatic ecosystems, including fish populations and macroinvertebrate communities. Advanced treatment at this plant helps reduce nutrient loading, mitigating eutrophication risks in downstream rivers and the coastal North Sea environment.