LOUVIGNE DU DESERT Wastewater Treatment Plant, Louvigné-du-Désert, Bretagne

The LOUVIGNE DU DESERT wastewater treatment plant is located in Louvigné-du-Désert, a commune in the Ille-et-Vilaine department of Bretagne, France. The plant serves a population of 4,830 and has a designed capacity of 4,000 m³/day, with an average discharge volume of 861.66 m³/day. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. This level of treatment is typical for plants discharging into sensitive areas, ensuring high effluent quality to protect receiving waters. The treated effluent is discharged into local watercourses that eventually drain into the Atlantic Ocean via the Rance or Couesnon river systems. The plant plays a key role in safeguarding the water quality of these rivers and the downstream coastal environment, which supports diverse aquatic life and is important for regional biodiversity.

The plant discharges into the local watershed, which drains into the Rance or Couesnon rivers and ultimately reaches the Atlantic Ocean. The region's water bodies support diverse aquatic ecosystems and are important for migratory fish species. Advanced treatment helps minimize nutrient loading and protects downstream estuarine and coastal habitats.