KA Goslar Zentralklaranlage - Goslar Wastewater Treatment Plant, Niedersachsen

KA Goslar Zentralklaranlage is a municipal wastewater treatment plant located in Goslar, Niedersachsen, Germany. The plant serves a population equivalent of approximately 63,789 people, placing it in the medium-to-large agglomeration category under EU regulations. It is situated in the Harz region, a historically significant area with a mix of urban and industrial activity. As a German plant of this scale, it is required to comply with the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. For plants in sensitive areas, tertiary treatment may be required to reduce nutrient loads. The plant's treatment processes are designed to meet these regulatory standards, ensuring that effluent quality protects the receiving environment. The treated wastewater is discharged into local watercourses that ultimately drain into the North Sea via the Weser or Elbe river systems. The plant plays a critical role in maintaining water quality in the region, supporting aquatic life and downstream ecosystems. Its operation helps prevent eutrophication and protects the ecological integrity of the Harz region's rivers and streams.

The plant discharges into the Innerste River, a tributary of the Leine, which flows into the Aller and then the Weser, eventually reaching the North Sea. The Harz region's rivers support diverse aquatic life, including salmonid populations, and are ecologically sensitive due to historical mining impacts. The plant's nutrient removal helps protect downstream water quality and prevents algal blooms in the Weser estuary.