Overview
TROARN wastewater treatment plant serves Bures-sur-Dives, Troarn, in Normandie, France. It treats wastewater from approximately 9,500 residents, with a designed capacity of 1.00 volume unit.
The TROARN wastewater treatment plant is located in Bures-sur-Dives, near Troarn, in the Normandie region of France. It serves a population of approximately 9,487 people, making it a small to medium agglomeration under French and EU classification. The plant is situated in the commune of Troarn, within the Calvados department, and its address is Rue des Marais, Bures-sur-Dives. As a French wastewater facility, TROARN operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size (between 2,000 and 10,000 population equivalent). The directive also mandates more stringent treatment if the plant discharges into sensitive areas. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Dives River and then into the Baie de Seine, part of the English Channel. This coastal discharge area supports diverse marine life and is an important ecological zone. The plant's proximity to the coast (within 50 km) means its operations are subject to additional scrutiny to protect marine water quality.
Environmental context
The TROARN plant discharges into the Dives River, which flows into the Baie de Seine and then the English Channel. This coastal zone supports diverse aquatic life, including fish nurseries and migratory bird populations. The region's watershed is influenced by agricultural runoff, making effective wastewater treatment important for maintaining water quality in the downstream estuary and marine environment.
Frequently asked questions
The TROARN plant is located at Rue des Marais, Bures-sur-Dives, in the commune of Troarn, near Caen, in the Normandie region of France.
The plant serves approximately 9,487 residents, classifying it as a small to medium agglomeration under EU wastewater directives.
The treated effluent is discharged into the Dives River, which flows into the Baie de Seine and then the English Channel.
As a French facility, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size and potentially tertiary treatment if discharging into sensitive areas.
Under the EU directive, plants serving between 2,000 and 10,000 population equivalent must provide secondary treatment. In France, this is typically achieved through biological processes such as activated sludge or biofiltration.
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