Granfjällsstötens ARV - Advanced Wastewater Treatment in Kronoparken, Sweden

Granfjällsstötens ARV is an advanced wastewater treatment plant located in Kronoparken, within Malung-Sälens kommun, Dalarnas län, Sweden. The plant serves a population of approximately 3,005 people, classifying it as a small agglomeration under Swedish and EU regulations. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. Its designed capacity is 8,000 cubic meters per day, with a current discharge volume of 471.73 cubic meters per day, indicating ample capacity for future growth. As a Swedish facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates appropriate treatment levels based on receiving water sensitivity. The treated effluent is discharged into local waterways that ultimately drain into the Baltic Sea. The plant plays a crucial role in protecting downstream aquatic ecosystems, including rivers and lakes in the Dalarna region, by ensuring high-quality effluent before release.

The plant discharges into local watercourses that flow through the Dalarna region, eventually reaching the Baltic Sea. This watershed supports diverse aquatic life, including fish species such as pike and perch, and is important for migratory birds. The advanced treatment helps minimize nutrient loading, reducing the risk of eutrophication in downstream lakes and the Baltic Sea.