KNEBEL Wastewater Treatment Plant, Knebel, Denmark - Advanced Treatment for Coastal Protection

KNEBEL is a wastewater treatment plant located in Knebel, a town in Syddjurs Municipality, Region Midtjylland, Denmark. The plant serves a population of approximately 4,275 and operates with advanced treatment processes, ensuring high-quality effluent. Its designed capacity is 3,811 m³/day, with an average discharge volume of 472.46 m³/day, indicating ample capacity for current loads. As an advanced treatment facility, KNEBEL meets the stringent requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates tertiary treatment for sensitive areas and agglomerations above 10,000 population equivalent. Although the plant serves fewer than 10,000 people, its advanced treatment level reflects Denmark's commitment to environmental protection, particularly in coastal zones. The plant is situated within 10 km of the coast, discharging treated wastewater into the Kattegat sea via local watercourses. This coastal discharge requires careful management to protect marine ecosystems, including nutrient removal to prevent eutrophication. The plant's advanced treatment helps safeguard the sensitive coastal waters of the Baltic Sea region.

KNEBEL discharges treated wastewater into the Kattegat, a sea area connecting the Baltic Sea to the North Sea. This coastal region supports diverse marine life, including fish spawning grounds and migratory bird habitats. The advanced treatment process reduces nutrient loads, helping to mitigate eutrophication risks in the Kattegat, which is part of the larger Baltic Sea catchment known for its ecological sensitivity.