Albula_Alvra Alvaneu Wastewater Treatment Plant, Albula/Alvra, Switzerland

The Albula_Alvra Alvaneu wastewater treatment plant is located in the municipality of Albula/Alvra in the canton of Graubünden, Switzerland. It serves a population of approximately 1,921 residents and discharges an average volume of 871.98 m³/day of treated wastewater. The plant is situated in the Alpine region, which influences its operational and environmental context. The plant employs advanced treatment processes, ensuring a high level of pollutant removal. Under the Swiss Water Protection Act (Gewässerschutzgesetz), wastewater treatment plants are required to meet stringent effluent standards, particularly in sensitive Alpine watersheds. The designed capacity of 3,750 m³/day indicates that the plant has reserve capacity for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Albula River, a tributary of the Rhine. The Rhine flows through Switzerland, Germany, and the Netherlands before reaching the North Sea. The advanced treatment helps protect the sensitive Alpine aquatic ecosystems and downstream water quality in the Rhine basin.

The plant discharges into the Albula River, which flows into the Hinterrhein and then the Rhine, eventually reaching the North Sea. The Alpine watershed is ecologically sensitive, supporting diverse aquatic life including brown trout and other cold-water species. The advanced treatment ensures minimal nutrient and pollutant loading, protecting the fragile mountain stream ecosystems and downstream water quality in the Rhine basin.