Overview
DOMFRONT ZI is an advanced wastewater treatment plant in Domfront en Poiraie, Normandie, France, serving approximately 5,155 people with a designed capacity of 7,000 m³/day.
DOMFRONT ZI is an advanced wastewater treatment facility located in Domfront en Poiraie, within the Normandie region of France. The plant serves a population of around 5,155, with a designed capacity of 7,000 m³/day and an average discharge volume of 919.64 m³/day. It operates under the French regulatory framework, which implements the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this scale. As an advanced treatment plant, DOMFRONT ZI likely employs tertiary processes such as nutrient removal or disinfection, meeting the stringent requirements for sensitive areas under the EU directive. The plant's capacity utilization is well below its design capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the English Channel. The plant plays a key role in protecting the regional aquatic environment, supporting water quality in downstream rivers and coastal ecosystems. Its advanced treatment helps reduce nutrient loads and pollutants, contributing to the ecological health of the Normandy watershed.
Environmental context
DOMFRONT ZI discharges treated wastewater into local streams that flow into the Varenne River, a tributary of the Mayenne River, which eventually reaches the Loire River and the Atlantic Ocean. The plant's advanced treatment helps protect downstream aquatic habitats, including those supporting migratory fish species and diverse freshwater communities. The Normandy region's temperate climate and agricultural landscape make nutrient management particularly important for preventing eutrophication in receiving waters.
Frequently asked questions
DOMFRONT ZI is located at 185, Route du Mont Saint Michel, in Domfront en Poiraie, within the Orne department of Normandie, France.
The plant serves approximately 5,155 people, classifying it as a small to medium agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into local watercourses that flow into the Varenne River, part of the Loire basin, eventually reaching the Atlantic Ocean.
DOMFRONT ZI provides advanced treatment, which typically includes tertiary processes such as nutrient removal or disinfection, exceeding the EU's secondary treatment standard.
As a French plant serving over 2,000 people, it operates under the EU UWWTD (91/271/EEC), which mandates secondary treatment as a minimum. Its advanced treatment likely addresses sensitive area requirements.
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