Overview
DEPURATORE SELVARELLA is an advanced wastewater treatment plant serving Vetralla, Lazio, Italy. It treats wastewater from a population of 2,000 with a designed capacity of 2,000 cubic meters per day.
DEPURATORE SELVARELLA is an advanced wastewater treatment plant located in Vetralla, a town in the Lazio region of central Italy. The facility serves a population of approximately 2,000 residents and has a designed capacity of 2,000 cubic meters per day, with an actual discharge volume of 395.93 cubic meters per day. As an advanced treatment plant, 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 small agglomerations like Vetralla (under 10,000 population equivalent), the directive requires appropriate treatment, and advanced treatment is often implemented in sensitive areas to protect water quality. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Tyrrhenian Sea via the Tiber River basin. The Lazio region relies on such facilities to safeguard both local streams and the coastal marine environment from nutrient pollution and other contaminants.
Environmental context
The plant discharges into the Tiber River basin, which flows through central Italy and empties into the Tyrrhenian Sea near Rome. The downstream environment includes agricultural areas and coastal ecosystems that are sensitive to nutrient loading. Advanced treatment helps reduce the risk of eutrophication in the Tyrrhenian Sea, supporting marine biodiversity and water quality for tourism and fisheries.
Frequently asked questions
DEPURATORE SELVARELLA is located in Vetralla, a town in the province of Viterbo, Lazio region, Italy. The address is Strada Forocassio, Madonna del Ponte, Vetralla.
The plant serves a population of approximately 2,000 residents, making it a small-scale municipal wastewater treatment facility.
The treated wastewater is discharged into the local watershed, which flows into the Tiber River basin and eventually reaches the Tyrrhenian Sea.
The plant provides advanced treatment, which includes nutrient removal and disinfection, exceeding the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for small agglomerations.
As an Italian plant serving fewer than 10,000 population equivalent, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates appropriate treatment. The advanced treatment level indicates compliance with sensitive area requirements to protect the Tiber River basin and Tyrrhenian Sea.
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