PERO DEI SANTI Wastewater Treatment Plant, Morino, Abruzzo, Italy

PERO DEI SANTI is a municipal wastewater treatment plant located in Morino, a town in the Abruzzo region of Italy. The plant serves a small population of 670 residents, reflecting its role in a rural or small-town setting. It is situated along Strada Regionale 82 della Valle del Liri, near the Curiuso area, within the province of L'Aquila. The plant provides secondary treatment, which is the standard biological treatment level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity is 450 cubic meters per day, and the actual discharge volume is 132.64 cubic meters per day, indicating that the plant operates well below its capacity. As an Italian facility, it is subject to national regulations implementing the EU directive, which mandate secondary treatment for inland freshwater discharges. The treated effluent is discharged into the local watershed, which ultimately drains into the Liri River, a major river in central Italy that flows into the Tyrrhenian Sea. The plant's operation helps protect the water quality of the Liri River and its downstream ecosystems, supporting aquatic life and regional water resources.

The plant discharges into the Liri River basin, which flows through the Lazio and Abruzzo regions before reaching the Tyrrhenian Sea. The Liri River supports diverse aquatic habitats and is important for local biodiversity. The secondary treatment provided by the plant helps reduce organic pollutants and nutrients, mitigating eutrophication risks in the downstream river and coastal marine environment.