KA Barssel Wastewater Treatment Plant, Barßel, Niedersachsen

KA Barssel, located in Barßel, Niedersachsen, Germany, is a municipal wastewater treatment facility serving a population equivalent of 8,779. The plant is situated in the rural district of Cloppenburg, within the low-lying marshland region near the North Sea coast. As a German wastewater treatment plant serving a medium agglomeration, KA Barssel is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive requires secondary treatment for discharges into freshwater and estuaries, and more stringent tertiary treatment for sensitive areas. The regulatory framework ensures compliance with national and European standards. The treated effluent from KA Barssel is discharged into local watercourses that ultimately drain into the North Sea. The plant plays a key role in protecting the region's aquatic ecosystems, including the sensitive marshland habitats and the downstream coastal environment, by reducing nutrient and pollutant loads.

The plant discharges into the local drainage network of the Ems river basin, which flows into the Dollart estuary and then the North Sea. This region features ecologically sensitive marshlands and wetlands that support diverse birdlife and aquatic species. The treatment plant helps mitigate eutrophication risks in the downstream coastal waters.