DP01514601_MILANO_NOSEDO Wastewater Treatment Plant, Rozzano, Lombardy

DP01514601_MILANO_NOSEDO is a large-scale wastewater treatment plant located in Rozzano, a municipality in the metropolitan area of Milan, Lombardy, Italy. Serving a population equivalent of over 1 million, it is one of the key facilities managing wastewater from the Milan urban agglomeration. The plant is situated along the Alzaia Lambro Meridionale, near the Lambro River. As a facility serving more than 150,000 population equivalent, it falls under the EU Urban Waste Water Treatment Directive (91/271/EEC) category of 'large agglomeration. ' This directive requires such plants to implement secondary treatment as a minimum, and tertiary treatment if discharging into sensitive areas. The plant's treatment processes are designed to meet these stringent standards, protecting the local water environment. The treated effluent is discharged into the Lambro River, which flows into the Po River, Italy's longest river, and eventually into the Adriatic Sea. The plant plays a critical role in safeguarding the water quality of the Lambro and Po basins, which support diverse aquatic ecosystems and are used for irrigation, recreation, and drinking water supply downstream.

The plant discharges into the Lambro River, a tributary of the Po River, which drains into the Adriatic Sea. The Lambro-Po system is ecologically significant, supporting diverse fish species and migratory birds. The Po Delta is a vital wetland area, and the river's water quality directly impacts the Adriatic's coastal ecosystem. The plant's advanced treatment helps mitigate nutrient loading and pollution, preserving the ecological balance of this important watershed.