Trier Ehrang, Trier | Germany Wastewater

Overview

Trier Ehrang wastewater treatment plant serves approximately 21,000 people in Trier, Rhineland-Palatinate, Germany. It discharges treated effluent into the Moselle River, a tributary of the Rhine.

The Trier Ehrang wastewater treatment plant is located in the Ehrang-Quint district of Trier, Germany, within the state of Rhineland-Palatinate. It serves a population of around 20,960, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant is situated along the Moselle River, which flows through the city and is a key water body in the region. As a German facility serving a population between 10,000 and 100,000, the plant is required to meet secondary treatment standards under the EU UWWTD. German wastewater treatment regulations, based on the Water Resources Act (WHG) and state-level ordinances, typically mandate biological treatment with nutrient removal for plants of this scale, especially in sensitive areas like the Moselle basin. The plant's location in a wine-growing region also underscores the importance of maintaining water quality for both ecological and economic reasons. The treated effluent from Trier Ehrang is discharged into the Moselle River, which flows northeast to join the Rhine at Koblenz. The Rhine then continues through the Netherlands into the North Sea. The Moselle is an ecologically important river that supports diverse aquatic life and is a major migratory corridor for fish species such as salmon and eel. The plant's operation helps protect this downstream ecosystem from nutrient pollution and organic loads.

Environmental context

The Trier Ehrang plant discharges into the Moselle River, a major tributary of the Rhine. The Moselle flows through the wine-growing region of Rhineland-Palatinate and eventually joins the Rhine at Koblenz, which drains into the North Sea via the Rhine-Meuse delta. The river supports diverse aquatic life, including fish species like barbel and chub, and is an important migratory route for Atlantic salmon and European eel. The surrounding watershed is characterized by agricultural land use, particularly vineyards, which can contribute nutrient runoff. Effective wastewater treatment is crucial to prevent eutrophication and maintain the ecological health of the Moselle and downstream waters.

Frequently asked questions

The Trier Ehrang plant is located in the Ehrang-Quint district of Trier, in the state of Rhineland-Palatinate, Germany. It is situated along the Moselle River.

The plant serves approximately 20,960 people, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive.

The treated effluent is discharged into the Moselle River, which flows northeast to join the Rhine at Koblenz and eventually reaches the North Sea.

As a German plant serving over 10,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment. German national regulations, including the Water Resources Act, further require nutrient removal for plants in sensitive areas.

For medium-sized agglomerations (10,000-100,000 population equivalent) in Germany, standard treatment includes biological treatment with nitrogen and phosphorus removal, especially in catchments like the Moselle that are sensitive to eutrophication.