Overview
Wilnsdorf Niederdielfen wastewater treatment plant serves the Siegen area in Nordrhein-Westfalen, Germany, with a population equivalent of 14,431. The plant operates under the EU Urban Waste Water Treatment Directive.
The Wilnsdorf Niederdielfen wastewater treatment plant is located in the Siegen district of Nordrhein-Westfalen, Germany. It serves a population equivalent of 14,431, placing it in the medium agglomeration category under EU regulations. The plant is situated inland, away from coastal areas, and its operations are part of the regional water management infrastructure. As a German wastewater facility, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving water body is designated as sensitive. The plant's treatment processes are designed to meet these regulatory standards, ensuring compliance with national and European water quality objectives. The treated effluent from the plant is discharged into local watercourses that ultimately drain into the Rhine River basin. The Rhine is a major European waterway that flows through Germany into the North Sea. The plant plays a key role in protecting the water quality of the Sieg River and its tributaries, which are important for aquatic life and regional biodiversity.
Environmental context
The plant discharges into the Sieg River, a tributary of the Rhine River, which flows into the North Sea. The Sieg River supports diverse aquatic ecosystems, including fish species such as salmon and trout. The plant's operations help maintain water quality in this ecologically sensitive watershed, which is part of the larger Rhine basin, a critical habitat for migratory fish and other aquatic organisms.
Frequently asked questions
The plant is located in the Siegen district of Nordrhein-Westfalen, Germany, at Auf der Weiß, Kaan-Marienborn, Siegen.
The plant serves a population equivalent of 14,431, classifying it as a medium-sized agglomeration under EU regulations.
Treated effluent is discharged into local watercourses that flow into the Sieg River, a tributary of the Rhine River, which ultimately reaches the North Sea.
As a German facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size and may require tertiary treatment if the receiving water is sensitive.
Under the EU UWWTD, plants serving between 10,000 and 150,000 population equivalent are required to have at least secondary treatment. In Germany, many such plants also incorporate nutrient removal to meet strict water quality standards.
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