Sattervikens avloppsreningsverk - Advanced Wastewater Treatment in Sätter, Sweden

Sattervikens avloppsreningsverk is a municipal wastewater treatment plant located in Sätter, a locality in Hammarö Municipality, Värmland County, Sweden. The plant serves a population of around 1,700 and has a designed capacity of 4,000 cubic meters per day, with an average discharge volume of 266.4 m³/day. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters, aligning with Sweden's stringent environmental standards. The treated effluent is discharged into the local watershed, which ultimately drains into Lake Vänern, Sweden's largest lake and a major freshwater resource. Lake Vänern supports diverse aquatic life and is an important source of drinking water and recreation. The plant's advanced treatment helps minimize nutrient loading and protect the lake's ecological balance.

The plant discharges into the local drainage network that flows into Lake Vänern, Europe's third-largest lake. Lake Vänern is a vital freshwater ecosystem supporting fish species such as salmon and trout, and it serves as a key water source for surrounding communities. The advanced treatment at Sattervikens reduces phosphorus and nitrogen inputs, helping to prevent eutrophication and maintain water quality in this ecologically sensitive lake.