IDL_CONSORTILE_RASSINA Wastewater Treatment Plant, Rassina, Toscana

IDL_CONSORTILE_RASSINA is an advanced wastewater treatment plant located in the industrial zone of Rassina, a frazione of Castel Focognano in the Casentino valley, Toscana, Italy. The plant serves a population of 2,417 and has a designed capacity of 5,000 m³/day, with an average discharge volume of 478.48 m³/day. As an advanced treatment facility, the plant goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent standards under Italy's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this scale (2,000-10,000 p.e.), the directive requires appropriate treatment, and advanced treatment is often applied in sensitive areas like the Arno basin. The plant discharges treated effluent into the local water system, which flows into the Arno River and eventually reaches the Tyrrhenian Sea. The Casentino valley is known for its natural landscapes and the Foreste Casentinesi national park, making the protection of water quality essential for local ecosystems and downstream communities.

The plant is situated in the Casentino valley, part of the Arno River basin. Treated effluent flows into the Arno River, which traverses Tuscany and discharges into the Tyrrhenian Sea near Pisa. The Arno basin supports diverse aquatic life and is ecologically sensitive due to agricultural runoff and urban pressures. The plant's advanced treatment helps reduce nutrient loading, protecting downstream water quality and the marine environment.