Pontelongo Via Dante Wastewater Treatment Plant, Correzzola, Veneto

Pontelongo Via Dante is an advanced wastewater treatment plant located in Correzzola, in the Veneto region of Italy. The facility serves a population of approximately 3,935, classifying it as a small agglomeration under EU standards. Its location near the Adriatic coast places it in a sensitive coastal environment. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 6,000 cubic meters per day and a discharge volume of about 779 cubic meters per day, the plant operates well within its capacity. Italian regulations, transposing EU directives, mandate stringent treatment for discharges into sensitive areas, which coastal zones often are. The treated effluent is discharged into local waterways that ultimately drain into the northern Adriatic Sea. This coastal region supports diverse marine life and is important for tourism and fisheries. The plant's advanced treatment helps protect the ecological quality of the receiving waters and the downstream marine environment.

The plant discharges into the drainage network of the Veneto plain, which flows into the Adriatic Sea via rivers such as the Brenta and Adige. The Adriatic Sea is a semi-enclosed basin with limited water exchange, making it sensitive to nutrient pollution. The advanced treatment at Pontelongo Via Dante reduces nutrient loads, helping to prevent eutrophication and protect coastal ecosystems, including seagrass beds and fish nurseries.