Zell Alf Bullay Zell Merl Wastewater Treatment Plant, Zell (Mosel), Germany

The Zell Alf Bullay Zell Merl wastewater treatment plant is located in Zell (Mosel), a town in the Cochem-Zell district of Rhineland-Palatinate, Germany. The facility serves a population of approximately 21,907 people, classifying it as a medium-sized agglomeration under European Union regulations. As a German plant, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The regulatory framework ensures compliance with national and EU standards for wastewater treatment. The plant discharges treated effluent into the Moselle River, a major tributary of the Rhine. The Moselle flows through the wine-growing region of Rhineland-Palatinate, eventually joining the Rhine at Koblenz. The Rhine then flows into the North Sea, making the plant's operations important for the ecological health of the Moselle and downstream waters.

The plant discharges into the Moselle River, which flows through the Rhine Valley and joins the Rhine at Koblenz. The Rhine then drains into the North Sea. The Moselle supports diverse aquatic life and is an important migratory corridor for fish. The surrounding region is known for viticulture, and the river's water quality is critical for both ecological and economic activities.