Bleesbruck Wastewater Treatment Plant, Gilsdorf, Luxembourg

Bleesbruck wastewater treatment plant is located in Gilsdorf, a town in the Canton of Diekirch, Luxembourg. The plant serves a population equivalent of 70,524, classifying it as a medium-to-large agglomeration under EU regulations. Its location along the Blees River places it within the broader Sauer River basin, which drains into the Moselle River. As a plant serving over 10,000 people in an EU member state, Bleesbruck is subject to the Urban Waste Water Treatment Directive (91/271/EEC). This directive requires secondary treatment for all discharges from agglomerations of this size, with more stringent tertiary treatment if the receiving waters are designated as sensitive areas. The plant's treatment process and capacity details are not publicly available, but the regulatory framework ensures a minimum level of treatment. The treated effluent from Bleesbruck is discharged into the Blees River, a tributary of the Sauer River. The Sauer flows into the Moselle River, which eventually joins the Rhine. This waterway supports diverse aquatic life and is important for regional biodiversity. The plant plays a key role in protecting water quality in this transboundary river system.

Bleesbruck WWTP discharges into the Blees River, a tributary of the Sauer River, which flows into the Moselle River and ultimately the Rhine. The Sauer-Moselle-Rhine system supports diverse aquatic ecosystems and is an important migratory corridor for fish species. The plant's location in the Luxembourg Ardennes region means the receiving waters are sensitive to nutrient pollution, making effective treatment critical for downstream water quality.