Overview
SARRE UNION is an advanced wastewater treatment plant in Sarre-Union, Grand Est, France, serving 2,400 people. It discharges 428.16 m³/day of treated effluent into the local watershed.
SARRE UNION is an advanced wastewater treatment plant located in Sarre-Union, in the Grand Est region of France. The facility serves a population of approximately 2,400 residents and is part of the municipal wastewater infrastructure for the commune. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 2,850 m³/day and an average discharge volume of 428.16 m³/day, the plant operates well within its capacity. The treated effluent is discharged into the local watercourse, which flows into the Saar River and eventually the Moselle and Rhine rivers. The plant plays a key role in protecting the water quality of the Saar basin, supporting aquatic life and downstream ecosystems.
Environmental context
The plant discharges into a tributary of the Saar River, which flows through the Grand Est region before joining the Moselle and then the Rhine. The Saar basin supports diverse aquatic habitats and is an important corridor for migratory fish. Advanced treatment helps reduce nutrient loads and protect downstream water quality in the Rhine delta.
Frequently asked questions
SARRE UNION is located at Chemin Sandgaerten, Ville-Neuve de Sarrewerden, in Sarre-Union, Bas-Rhin, Grand Est, France.
The plant serves approximately 2,400 residents in the Sarre-Union area.
The treated effluent is discharged into a local watercourse that flows into the Saar River, part of the Rhine basin.
The plant provides advanced treatment, exceeding the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for agglomerations of this size.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into French law, which mandates appropriate treatment based on population and receiving water sensitivity.
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