Overview
Laillé wastewater treatment plant in Bretagne, France serves 2,500 people with advanced treatment, discharging 446 m³/day. It supports the local watershed and operates under EU Urban Waste Water Treatment Directive standards.
The Laillé wastewater treatment plant is located in Laillé, a commune in the Ille-et-Vilaine department of Bretagne, France. It serves a population of approximately 2,500 people, classifying it as a small agglomeration under EU regulations. The plant is situated in a rural setting near Rennes, within the broader Brittany region. The facility employs advanced treatment processes, exceeding the EU Urban Waste Water Treatment Directive's minimum requirement of secondary treatment for agglomerations of this size. With a designed capacity of 5,500 m³/day and a current discharge volume of 446 m³/day, the plant operates well below its capacity, indicating room for future growth. The plant is not located near the coast, reducing direct marine discharge risks. Treated effluent is discharged into local watercourses that flow into the Vilaine River basin, eventually reaching the Atlantic Ocean. The plant plays a key role in protecting the region's water quality, supporting aquatic ecosystems, and maintaining the ecological health of downstream environments.
Environmental context
The plant discharges into local streams that are part of the Vilaine River basin, which flows into the Atlantic Ocean via the Bay of Biscay. The watershed supports diverse aquatic life and is important for regional biodiversity. The advanced treatment helps minimize nutrient loading and protects downstream water quality, particularly in sensitive areas that may experience eutrophication.
Frequently asked questions
The Laillé wastewater treatment plant is located in Laillé, a commune in the Ille-et-Vilaine department of Bretagne, France. Its address is V 10, La Rouesnais, Laillé, 35890.
The plant serves a population of approximately 2,500 people, making it a small agglomeration under EU classification.
The plant uses advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive for agglomerations of this size.
The plant discharges into local watercourses that are part of the Vilaine River basin, which flows into the Atlantic Ocean. It helps protect the water quality of these rivers and downstream ecosystems.
As a French plant serving fewer than 10,000 people, it falls under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires at least secondary treatment. The plant's advanced treatment exceeds this standard, providing additional environmental protection.
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