Impianto C Da Vascelli Wastewater Treatment Plant, Villalba, Sicily

Impianto C Da Vascelli is a wastewater treatment plant located in Villalba, a town in the province of Caltanissetta, Sicily, Italy. The plant serves a population of approximately 1,877 people and is part of the municipal wastewater infrastructure for the area. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity is 4,100 cubic meters per day, with a reported discharge volume of 325.5 cubic meters per day, indicating operational capacity well within design limits. The treated effluent is discharged into the local watershed, which ultimately drains into the Mediterranean Sea. The plant plays a key role in protecting the region's water quality and supporting the ecological health of downstream water bodies.

The plant discharges into the inland watershed of Sicily, which flows through rivers and streams to the Mediterranean Sea. The region's aquatic ecosystems support diverse species and are important for local biodiversity. The secondary treatment helps reduce nutrient and organic loads, mitigating eutrophication risks in downstream coastal waters.