Overview
Marchiennes wastewater treatment plant serves the commune of Marchiennes in Hauts-de-France, France. It treats wastewater for approximately 6,067 residents under the EU Urban Waste Water Treatment Directive.
The Marchiennes wastewater treatment plant is located in the commune of Marchiennes, within the Douai arrondissement of Nord department in Hauts-de-France, France. The facility serves a population of approximately 6,067 people, classifying it as a small agglomeration under EU regulations. As a French plant serving fewer than 10,000 population equivalents, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires appropriate treatment before discharge. French plants of this scale typically employ secondary biological treatment to meet national water quality standards. The plant discharges treated effluent into local watercourses that ultimately drain into the Scheldt River basin. The Scheldt flows through northern France and Belgium before reaching the North Sea near Antwerp. This watershed supports diverse aquatic life and is an important ecological corridor in the region.
Environmental context
The plant's treated effluent enters the local drainage network within the Scheldt River basin. The Scheldt flows northward through France and Belgium, eventually discharging into the North Sea via the Western Scheldt estuary. This watershed supports migratory fish species and provides habitat for aquatic vegetation, contributing to the ecological health of the broader North Sea coastal zone.
Frequently asked questions
The plant is located in Marchiennes, a commune in the Nord department of Hauts-de-France, France, along the D 99 road near Elpret.
The plant serves approximately 6,067 residents, classifying it as a small agglomeration under EU wastewater treatment regulations.
Treated effluent from the plant is discharged into local watercourses that are part of the Scheldt River basin, which flows to the North Sea.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which sets treatment standards based on population size and receiving water sensitivity.
For agglomerations of this size, French regulations typically require secondary biological treatment to reduce organic matter and suspended solids before discharge.
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