Overview
MARTELANGE L is a secondary wastewater treatment plant in Grumelange, Belgium, serving approximately 4,400 people. It discharges treated effluent into local waterways in the Luxembourg province.
MARTELANGE L is a municipal wastewater treatment plant located in Grumelange, a village within the municipality of Martelange in the Luxembourg province of Belgium. The plant serves a population of approximately 4,400 people, reflecting a small to medium agglomeration under European classification. As a secondary treatment facility, MARTELANGE L provides biological treatment to reduce organic matter and suspended solids. The plant has a designed capacity of 6,390 m³/day and reports an average discharge volume of 788.11 m³/day. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), secondary treatment is the standard requirement for inland freshwater discharges from agglomerations of this size. The treated effluent from MARTELANGE L is discharged into local watercourses that ultimately drain into the Sauer River, a tributary of the Moselle, which flows into the Rhine and eventually the North Sea. The plant plays a key role in protecting the water quality of these regional rivers and supporting the ecological health of the Rhine basin.
Environmental context
The plant discharges into small streams in the Ardennes region that flow into the Sauer River, a major tributary of the Moselle. The Moselle joins the Rhine, which drains into the North Sea. The local watershed supports diverse aquatic life, including fish species such as brown trout and grayling, and the area is ecologically sensitive due to its forested terrain and agricultural land use. Proper wastewater treatment is essential to prevent nutrient enrichment and maintain water quality in this transboundary river system.
Frequently asked questions
MARTELANGE L is located in Grumelange, a village in the municipality of Martelange, in the Luxembourg province of Wallonia, Belgium.
The plant serves approximately 4,400 people, classifying it as a small to medium agglomeration under EU wastewater treatment regulations.
The plant discharges treated effluent into local streams that flow into the Sauer River, a tributary of the Moselle, which ultimately reaches the North Sea via the Rhine.
MARTELANGE L provides secondary treatment, which includes biological processes to reduce organic matter and suspended solids, meeting the standard required by the EU Urban Waste Water Treatment Directive for inland discharges.
As a Belgian plant, MARTELANGE L operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size discharging into freshwater. National implementation is overseen by the Walloon region.
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