BEAUJEU Wastewater Treatment Plant, Lantignié, Auvergne-Rhône-Alpes, France

The BEAUJEU wastewater treatment plant is located in Lantignié, a commune in the Rhône department of the Auvergne-Rhône-Alpes region, France. The facility provides advanced treatment for a population equivalent of 4,205, serving the local community as part of the region's municipal wastewater infrastructure. As an advanced treatment plant, BEAUJEU goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (4,205 PE), the directive requires secondary treatment, but the plant's advanced level indicates it operates in a sensitive area or meets higher local requirements. The treated effluent is discharged into the local watershed, which ultimately drains into the Saône River, a major tributary of the Rhône. The Rhône flows into the Mediterranean Sea, making the plant's performance important for downstream water quality and the ecological health of the Rhône basin.

The plant discharges into the local water system that feeds the Saône River, a key tributary of the Rhône. The Rhône basin supports diverse aquatic life and is an important migratory corridor for fish species. The advanced treatment helps protect downstream ecosystems, including the Rhône delta and the Mediterranean coastal zone, from nutrient pollution and other contaminants.