Slots Bjergby Wastewater Treatment Plant - Advanced Treatment in Region Sjælland, Denmark

Slots Bjergby wastewater treatment plant is located in Slots Bjergby, Slagelse Municipality, Region Sjælland, Denmark. The facility serves a population of 2,638 and operates with advanced treatment processes, ensuring high-quality effluent before discharge. The plant has a designed capacity of 2,000 m³/day and currently treats a daily volume of 566.38 m³. As a Danish facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates advanced treatment for sensitive areas and secondary treatment for all discharges. The plant's advanced treatment level aligns with Denmark's commitment to nutrient removal, particularly in coastal regions. The treated effluent is discharged into local watercourses that drain to the Great Belt, a strait connecting the Baltic Sea to the Kattegat. This coastal discharge requires stringent treatment to protect marine ecosystems from eutrophication. The plant plays a key role in safeguarding the water quality of the surrounding fjords and coastal waters, which support diverse aquatic life and recreational activities.

The plant discharges into local streams that flow into the Great Belt, a major strait of the Baltic Sea. This coastal environment is sensitive to nutrient loading, which can cause algal blooms and hypoxia. Advanced treatment at Slots Bjergby helps reduce nitrogen and phosphorus inputs, protecting the ecological balance of the Baltic Sea, a semi-enclosed sea with limited water exchange.