BUZANCAIS Vilaine Wastewater Treatment Plant, Buzançais, Centre-Val de Loire

BUZANCAIS Vilaine is a wastewater treatment plant located in Buzançais, in the Centre-Val de Loire region of France. The plant serves a population of approximately 2,893 people and has a designed capacity of 6,000 m³ per day, with an average discharge volume of 516.11 m³ per day. The plant employs advanced treatment processes, which go beyond the secondary treatment requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), the directive mandates secondary treatment, but the plant's advanced level indicates additional nutrient removal or polishing steps, likely to protect sensitive receiving waters. The treated effluent is discharged into the local watershed, which ultimately drains into the Loire River basin. The Centre-Val de Loire region is known for its agricultural landscapes and the Loire River, a major European river that supports diverse aquatic ecosystems. The plant's advanced treatment helps minimize nutrient loading and protects downstream water quality.

The plant discharges into the local watershed within the Loire River basin, one of France's largest river systems. The Loire River flows into the Atlantic Ocean, supporting diverse aquatic life and migratory fish species. Advanced treatment at this plant reduces nutrient pollution, helping to protect the ecological health of the Loire estuary and coastal waters.