Overview
Koln Weiden wastewater treatment plant serves the Cologne suburb of Weiden in Nordrhein-Westfalen, Germany. It treats wastewater from approximately 56,000 people under the EU Urban Waste Water Treatment Directive.
Koln Weiden is a municipal wastewater treatment plant located in the Weiden district of Cologne, in the state of Nordrhein-Westfalen, Germany. The plant serves a population of approximately 56,091, classifying it as a medium agglomeration under EU regulations. It is situated inland, away from coastal areas, and its operations are part of the region's comprehensive water management infrastructure. As a German plant serving over 50,000 people, Koln Weiden is subject to the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment as a minimum. For larger agglomerations in sensitive areas, tertiary treatment may be mandated to reduce nutrients and protect receiving waters. The plant's treatment processes are designed to meet these stringent standards, ensuring compliance with national and EU regulations. The treated effluent from Koln Weiden is discharged into the local water system, which ultimately drains into the Rhine River basin. The Rhine is a major European waterway that flows through Germany and the Netherlands into the North Sea. The plant plays a crucial role in protecting the Rhine's water quality, supporting aquatic life and downstream ecosystems.
Environmental context
Koln Weiden discharges treated wastewater into the local tributaries of the Rhine River, which flows through the densely populated and industrialized Rhine Valley. The Rhine is a vital ecological corridor supporting diverse fish species, including salmon and eel, and provides drinking water for millions. The plant's operations help maintain water quality in this sensitive basin, reducing nutrient loads and preventing eutrophication in downstream lakes and the North Sea.
Frequently asked questions
Koln Weiden is located in the Weiden district of Cologne, in the state of Nordrhein-Westfalen, Germany. The plant's address is 251-253 Hauptstrasse, 51143 Cologne.
The plant serves approximately 56,091 people, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into local watercourses that flow into the Rhine River basin. The Rhine ultimately drains into the North Sea.
As a German plant serving over 50,000 people, Koln Weiden operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment and, in sensitive areas, tertiary treatment to reduce nutrients.
For agglomerations of this size in Germany, secondary treatment (biological treatment) is standard. In sensitive catchments like the Rhine basin, additional nutrient removal (tertiary treatment) is often required to meet water quality targets.
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