SALTRIA Wastewater Treatment Plant, Kastelbell-Tschars, Italy

SALTRIA is a wastewater treatment plant located in the municipality of Kastelbell-Tschars (Castelbello-Ciardes) in the Vinschgau Valley (Val Venosta), within the autonomous province of Bolzano - Bozen, Trentino-Alto Adige/Südtirol, Italy. The plant serves a population of 2,165 and is part of the regional wastewater infrastructure for the Middle Vinschgau area. The plant provides secondary treatment, which is the standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,800 m³/day and an actual discharge volume of 428.59 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Adige River (Etsch), one of Italy's major rivers. The Adige flows south through Trentino and Veneto before entering the Adriatic Sea near Chioggia. The plant plays a key role in protecting the water quality of the Adige basin, which supports diverse aquatic life and is used for irrigation and recreation.

The plant discharges into the Adige River basin, which flows through the Alpine region of South Tyrol and into the Adriatic Sea. The Adige is a vital water resource for the region, supporting agriculture, tourism, and ecosystems. The plant's secondary treatment helps reduce organic pollutants and nutrients, protecting downstream water quality in a sensitive Alpine environment.