DEP_COM_MASCHERONE Wastewater Treatment Plant, Fiano Romano, Lazio, Italy

DEP_COM_MASCHERONE is an advanced wastewater treatment plant located in Fiano Romano, a town in the Lazio region of Italy. The plant serves a population of approximately 3,000 residents, with a designed capacity of 3,500 m³/day and an average discharge volume of 593.89 m³/day. As an advanced treatment facility, it 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 (3,000 PE), the directive requires secondary treatment, but Italy often mandates advanced treatment in sensitive areas to protect water quality. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Tiber River basin. The Tiber flows through Rome and into the Tyrrhenian Sea, making the plant's advanced treatment crucial for protecting downstream ecosystems and coastal waters.

The plant discharges into the Tiber River basin, which flows through Lazio and into the Tyrrhenian Sea near Rome. The Tiber supports diverse aquatic life and is an important migratory corridor for fish. Advanced treatment helps reduce nutrient loading, protecting the river's ecological health and the coastal marine environment from eutrophication.