Eds avloppsreningsverk: Advanced Wastewater Treatment in Ed, Sweden

Eds avloppsreningsverk is a municipal wastewater treatment plant located in Ed, Dals-Eds kommun, Västra Götalands län, Sweden. The plant serves a population of about 2,765 people and is designed to handle up to 6,500 cubic meters of wastewater per day, with an average daily discharge of 434 cubic meters. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As a Swedish facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for discharges into sensitive areas. The plant's advanced treatment level ensures compliance with stringent effluent standards. The treated effluent is discharged into local watercourses that eventually drain into the Baltic Sea via the Göta älv river system. The plant plays a key role in protecting downstream aquatic ecosystems, including the sensitive coastal waters of the Kattegat and Skagerrak, by reducing nutrient loads that could cause eutrophication.

The plant discharges into local streams that flow into the Göta älv river, which empties into the Kattegat, a strait connecting to the Skagerrak and the North Sea. The Baltic Sea region is particularly sensitive to nutrient pollution, and advanced treatment at this plant helps reduce nitrogen and phosphorus loads, supporting the health of downstream marine ecosystems and preventing algal blooms.