Depuratore di Santa Massenza - Advanced Wastewater Treatment in Vallelaghi, Trentino-Alto Adige

Depuratore di Santa Massenza is an advanced wastewater treatment plant located in the town of Santa Massenza, within the municipality of Vallelaghi in the Trentino-Alto Adige region of northern Italy. The plant serves a population of approximately 2,954 residents and is designed to handle a capacity of 3,500 cubic meters per day, with an average discharge volume of 580.5 m³/day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As a facility in Italy, it operates under the European Union's Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. The plant's scale corresponds to a small agglomeration under the directive, which mandates secondary treatment as a minimum, but the plant exceeds this with advanced treatment. The treated effluent is discharged into the local water system, which ultimately flows into the Sarca River and then into Lake Garda, one of Italy's largest and most ecologically important lakes. The advanced treatment helps protect the lake's water quality, supporting aquatic life and recreational uses. The plant plays a key role in safeguarding the downstream environment in the Garda basin.

The plant discharges into the Sarca River, which flows into Lake Garda, a major subalpine lake in northern Italy. Lake Garda supports diverse aquatic ecosystems and is a vital resource for tourism and drinking water. The advanced treatment at Santa Massenza helps reduce nutrient loading, protecting the lake from eutrophication and maintaining its ecological balance.