DP01312601_LEZZENO Wastewater Treatment Plant, Chiesa, Lezzeno, Italy

DP01312601_LEZZENO is an advanced wastewater treatment plant located in the municipality of Lezzeno, in the province of Como, Lombardy, Italy. The plant serves the local community of Chiesa, treating wastewater from approximately 2,000 residents. It is situated near the eastern shore of Lake Como, a major subalpine lake in northern Italy. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 2,000 cubic meters per day, it is sized to handle the wastewater generated by the local population. As an Italian plant, it operates under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment levels based on the sensitivity of the receiving water body. The treated effluent is discharged into the Lake Como basin, which ultimately drains into the Adda River and then into the Po River, reaching the Adriatic Sea. Lake Como is a deep, oligotrophic lake that supports diverse aquatic life and is a vital resource for tourism and recreation. The advanced treatment helps protect the lake's water quality and ecological balance.

The plant discharges into the Lake Como watershed, which flows into the Adda River, a tributary of the Po River, and eventually reaches the Adriatic Sea. Lake Como is a large, deep subalpine lake with high ecological sensitivity, supporting species such as the endemic Como shad and various migratory birds. Advanced treatment is crucial to prevent nutrient enrichment and maintain the lake's oligotrophic status.