ROMANS_D_ISONZO Wastewater Treatment Plant, Romans d'Isonzo, Italy

ROMANS_D_ISONZO is an advanced wastewater treatment plant located in Romans d'Isonzo, in the Friuli-Venezia Giulia region of northeastern Italy. The plant serves a population of approximately 3,363 residents and is designed to handle up to 5,000 m³ of wastewater per day, with an average daily discharge of 985.69 m³. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients and other pollutants, meeting the stringent standards of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, the directive requires secondary treatment, but the plant's advanced level indicates it likely discharges into a sensitive area or is designed for high environmental protection. The plant's treated effluent is discharged into local watercourses that eventually drain into the Adriatic Sea. The region's water bodies support diverse aquatic life and are important for both ecological balance and local agriculture. By providing advanced treatment, the plant helps protect downstream ecosystems and contributes to the overall health of the Adriatic coastal environment.

The plant's treated wastewater flows into the Isonzo River basin, which drains into the Gulf of Trieste in the northern Adriatic Sea. This coastal area is ecologically sensitive, supporting seagrass meadows and fish nurseries. Advanced treatment reduces nutrient loads, mitigating eutrophication risks in the Adriatic, a semi-enclosed sea with limited water exchange.