Essen Kupferdreh Wastewater Treatment Plant, Essen, Nordrhein-Westfalen

Essen Kupferdreh is a municipal wastewater treatment plant located in the Kupferdreh district of Essen, in the state of Nordrhein-Westfalen, Germany. The plant serves a population of approximately 65,793, classifying it as a medium-sized agglomeration under EU regulations. It is situated inland, more than 50 km from the coast, and discharges into the local river system. As a German wastewater treatment facility, Essen Kupferdreh is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent (PE) between 10,000 and 150,000. The plant likely employs biological treatment processes to meet these standards, ensuring compliance with national water quality regulations. The facility is part of the Emschergenossenschaft, the regional water management association responsible for wastewater treatment in the Emscher catchment area. The treated effluent from Essen Kupferdreh is discharged into the Ruhr River, a major tributary of the Rhine. The Ruhr River flows westward through the Ruhr region, eventually joining the Rhine near Duisburg. The Rhine then continues north through Germany and the Netherlands before emptying into the North Sea. This discharge pathway underscores the plant's role in protecting the water quality of the Ruhr and Rhine rivers, which support diverse aquatic ecosystems and provide drinking water for millions of people.

Essen Kupferdreh discharges treated wastewater into the Ruhr River, a key tributary of the Rhine River. The Ruhr flows through a densely populated and industrialized region, making water quality management critical. The Rhine ultimately drains into the North Sea, supporting migratory fish species such as salmon and eel. The plant's operations help maintain the ecological health of these water bodies by reducing nutrient and pollutant loads.