Overview
CHATEAUGIRON wastewater treatment plant serves Domloup, France, in the Bretagne region. It treats wastewater for approximately 12,400 people under EU regulations.
The CHATEAUGIRON wastewater treatment plant is located in Domloup, near Rennes in the Bretagne region of France. It serves a population of about 12,400 people, classifying it as a medium-sized agglomeration under EU standards. The plant is part of the municipal wastewater infrastructure managed by the local authority. As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more stringent treatment if the receiving waters are sensitive areas. The plant's treatment process and capacity are aligned with these regulatory requirements to ensure compliance with environmental standards. The treated effluent is discharged into local watercourses that eventually drain into the Vilaine River and then into the Atlantic Ocean. The plant plays a key role in protecting the regional watershed, supporting aquatic life, and maintaining water quality in downstream ecosystems. Its operation contributes to the overall health of the Brittany region's water resources.
Environmental context
The plant discharges into the Vilaine River basin, which flows into the Atlantic Ocean near the Gulf of Morbihan. This area supports diverse aquatic life and is important for migratory fish species. The treatment plant helps reduce nutrient loading and pollution, safeguarding the ecological balance of the downstream estuary and coastal waters.
Frequently asked questions
The CHATEAUGIRON plant is located in Domloup, near Rennes, in the Bretagne region of France. Its address is SISEM, 2, Route de Châteaugiron, Domloup, 35410.
The plant serves approximately 12,400 people, classifying it as a medium-sized agglomeration under EU standards.
The treated effluent is discharged into local watercourses that flow into the Vilaine River, eventually reaching the Atlantic Ocean.
As a French facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size and may require additional treatment if the receiving waters are sensitive.
Under the EU Urban Waste Water Treatment Directive, plants serving between 10,000 and 150,000 people typically require at least secondary treatment. In sensitive areas, tertiary treatment may be necessary to reduce nutrients like nitrogen and phosphorus.
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