Overview
Koln Wahn wastewater treatment plant serves approximately 71,500 people in the Porz district of Cologne, Germany. It operates under the EU Urban Waste Water Treatment Directive.
Koln Wahn is a wastewater treatment plant located in the Porz district of Cologne, in the state of Nordrhein-Westfalen, Germany. The plant serves a population of approximately 71,541 people, placing it in the medium agglomeration category under EU classification. As a German facility, Koln Wahn operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The plant's treatment processes are designed to meet the stringent standards set by German water law, which implements the directive's requirements for nutrient removal in sensitive areas. The treated effluent from Koln Wahn 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 into the North Sea, supporting diverse aquatic ecosystems and providing drinking water for millions of people downstream.
Environmental context
The plant's discharge enters the local drainage network that flows into the Rhine River, one of Europe's most important waterways. The Rhine basin supports a wide range of aquatic life, including migratory fish species such as salmon and eel. The river's water quality is critical for downstream communities and ecosystems, making effective wastewater treatment essential for maintaining ecological health and meeting EU water quality standards.
Frequently asked questions
Koln Wahn is located in the Porz district of Cologne, in the state of Nordrhein-Westfalen, Germany. Its address is An der Groov, Zündorf, Porz, Köln.
Koln Wahn serves approximately 71,541 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated wastewater from Koln Wahn is discharged into the local drainage network, which ultimately flows into the Rhine River basin and then to the North Sea.
Koln Wahn operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this size. German national law implements these requirements with additional standards for nutrient removal.
For a plant serving approximately 70,000 people in Germany, secondary treatment with nutrient removal is typical, as required by the EU Urban Waste Water Treatment Directive for sensitive areas. Many plants also incorporate tertiary treatment to meet strict effluent quality standards.
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