Vianden Wastewater Treatment Plant, Vianden, Luxembourg

The Vianden wastewater treatment plant is located in the town of Vianden, in the Canton of Vianden, Luxembourg. It serves a population of about 2,824 residents, making it a small-scale municipal facility. The plant is situated in the Our River valley, a tributary of the Moselle, and operates under Luxembourg's national water management regulations. As a small agglomeration, the plant is expected to provide at least secondary treatment in line with the EU Urban Waste Water Treatment Directive (91/271/EEC), which applies to all discharges from agglomerations above 2,000 population equivalent. The directive requires appropriate treatment to protect the receiving water bodies, particularly in sensitive areas. The treated effluent from the Vianden plant is discharged into the Our River, which flows into the Moselle River and eventually the Rhine. This waterway supports diverse aquatic life and is part of the larger Rhine basin, an important ecological corridor in Western Europe. The plant's operation helps maintain water quality in this transboundary river system.

The Vianden plant discharges into the Our River, a tributary of the Moselle River, which flows into the Rhine. The Rhine basin is a major European watershed supporting diverse aquatic ecosystems and migratory fish species. The plant's location in a valley near the German border means its effluent can affect downstream water quality in both Luxembourg and Germany. Proper treatment is essential to protect the ecological health of the Our and Moselle rivers.