DEPURATORE SUTRI - Advanced Wastewater Treatment Plant in Sutri, Lazio, Italy

DEPURATORE_SUTRI is an advanced wastewater treatment plant located in Sutri, a town in the Lazio region of central Italy. The plant serves a population of approximately 5,000 people and treats an average daily flow of 989.82 m³. Its designed capacity is 5,000 m³/day, indicating it is sized to handle the community's current needs. 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. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters. As an Italian plant, it operates under national regulations that implement the EU directive, with oversight from regional environmental authorities. The treated effluent is discharged into local watercourses that flow into the Tiber River basin, eventually reaching the Tyrrhenian Sea. The plant plays a key role in protecting the water quality of the Tiber watershed and downstream coastal ecosystems. Its advanced treatment helps reduce nutrient loading, supporting aquatic life and preventing eutrophication in the receiving waters.

The plant discharges into the Tiber River basin, which drains into the Tyrrhenian Sea near Rome. The Tiber is Italy's third-longest river and supports diverse aquatic habitats, including fish species such as the Tiber barbel. The downstream coastal area includes ecologically sensitive marine environments that benefit from reduced nutrient inputs from advanced treatment.