Kopmanholmens reningsverk – Advanced Wastewater Treatment in Köpmanholmen, Sweden

Kopmanholmens reningsverk is a municipal wastewater treatment plant located in Köpmanholmen, within the Nätra district of Örnsköldsvik municipality, Sweden. The plant serves a population of 3,234 and operates with advanced treatment processes, ensuring high-quality effluent before discharge. The plant has a designed capacity of 8,000 cubic meters per day and currently treats an annual volume of 507.68 thousand cubic meters. As an advanced treatment facility, it meets stringent Swedish and EU standards for wastewater treatment, including nutrient removal to protect sensitive coastal waters. The treated effluent is discharged into the Baltic Sea via local watercourses. The plant plays a key role in safeguarding the coastal environment of the High Coast region, an area known for its ecological significance and tourism. Its advanced treatment helps reduce nutrient loading and protect marine biodiversity.

The plant discharges treated wastewater into the Baltic Sea via the nearby coastal waters of the Bothnian Sea. This region is ecologically sensitive, supporting diverse marine life and important fish spawning grounds. The advanced treatment reduces nutrient inputs, helping to mitigate eutrophication in the Baltic Sea, a major environmental concern for the area.