Le Temple-de-Bretagne La Justice Wastewater Treatment Plant, Pays de la Loire, France

Le Temple-de-Bretagne La Justice is an advanced wastewater treatment plant located in Le Temple-de-Bretagne, a commune in the Loire-Atlantique department of Pays de la Loire, France. The plant serves a population of 2,920 and has a designed capacity of 2,150 m³/day, with an actual discharge volume of 520.92 m³/day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), France requires appropriate treatment for discharges into sensitive areas, and advanced treatment is typical for plants serving agglomerations of this size when discharging into sensitive catchments. The treated effluent is discharged into the local watershed, which ultimately drains into the Loire River and then the Bay of Biscay. The plant plays a key role in protecting the Loire estuary and coastal waters from nutrient pollution, supporting aquatic biodiversity and water quality in the region.

The plant discharges into the Loire River basin, which flows through western France into the Bay of Biscay. The Loire estuary is a dynamic ecosystem supporting diverse fish and bird species, including migratory fish like Atlantic salmon. Advanced treatment helps reduce nutrient loads that could otherwise contribute to eutrophication in the coastal zone.