UWWTP DALEN - Closed Advanced Wastewater Treatment Plant in Coevorden, Netherlands

UWWTP DALEN is a former wastewater treatment plant located in Coevorden, in the province of Drenthe, Netherlands. The plant was designed with advanced treatment capabilities and had a capacity of 9900 cubic meters per day, serving the local agglomeration. As a closed facility, it no longer processes wastewater. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), Dutch plants of this scale are typically required to meet secondary or advanced treatment standards, especially in sensitive areas. The advanced treatment level at UWWTP DALEN indicates it was equipped to remove nutrients such as nitrogen and phosphorus, reflecting the Netherlands' stringent water quality regulations. The plant's discharge would have entered local watercourses that drain into the Vecht River basin, ultimately flowing into the IJsselmeer or the North Sea. The region's water management focuses on protecting downstream ecosystems, including wetlands and freshwater habitats that support diverse aquatic life.

The plant's treated effluent would have discharged into local canals or streams within the Vecht River basin, which flows through the Netherlands and Germany before reaching the IJsselmeer, a large freshwater lake, and eventually the North Sea. The downstream environment includes ecologically sensitive areas that support migratory fish and waterfowl, requiring careful nutrient management to prevent eutrophication.