KA Celle Wastewater Treatment Plant, Celle, Niedersachsen, Germany

KA Celle is a municipal wastewater treatment plant located in Celle, Niedersachsen, Germany. Serving an estimated population of 94,602, the plant is a key component of the region's wastewater infrastructure, handling domestic and industrial flows from the city and surrounding areas. As a German facility, KA Celle operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent (PE) between 10,000 and 150,000. For larger agglomerations, such as those serving over 100,000 PE, tertiary treatment may be required in sensitive areas. The plant's treatment processes are designed to meet these stringent standards, ensuring compliance with national and European regulations. The treated effluent from KA Celle is discharged into the local water system, which ultimately drains into the Aller River, a tributary of the Weser River. The Weser flows into the North Sea, making the plant's operations important for the ecological health of these downstream water bodies. The region's aquatic ecosystems benefit from the plant's treatment, which helps reduce nutrient loads and protect biodiversity.

KA Celle discharges treated wastewater into the Aller River basin, which flows into the Weser River and eventually the North Sea. The Aller and Weser rivers support diverse aquatic life, including fish species such as salmon and trout, and are important for regional biodiversity. The plant's treatment helps mitigate nutrient enrichment and pollution, safeguarding the ecological balance of these waters.