4544062001 KA Esterwegen - Advanced Wastewater Treatment Plant in Esterwegen, Niedersachsen

4544062001 KA Esterwegen is an advanced wastewater treatment plant located in Esterwegen, in the Samtgemeinde Nordhümmling, Landkreis Emsland, Niedersachsen, Germany. The plant serves a population of 7,458 and is part of the municipal wastewater infrastructure for the region. The plant operates with advanced treatment, which goes beyond secondary treatment to remove nutrients such as nitrogen and phosphorus. It has a designed capacity of 9,000 m³/day and a reported discharge volume of 910.08 m³/day. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving agglomerations of this size are required to provide secondary treatment, and advanced treatment is often mandated in sensitive areas. The treated effluent is discharged into local watercourses that ultimately drain into the Ems River basin, which flows into the North Sea. The plant plays a key role in protecting the water quality of the Ems River and the downstream marine environment, supporting aquatic life and reducing nutrient loads.

The plant discharges into the Ems River basin, which flows through Niedersachsen and into the Dollart estuary before reaching the North Sea. The Ems River supports diverse aquatic life and is an important migratory corridor for fish. Advanced treatment helps reduce nutrient pollution, protecting the river's ecological health and the sensitive coastal ecosystem of the Wadden Sea.