ROANA VIA S ANTONIO Wastewater Treatment Plant, Mezzaselva, Veneto, Italy

ROANA VIA S ANTONIO is a secondary wastewater treatment plant located in Mezzaselva, a frazione of Roana in the province of Vicenza, Veneto, Italy. The plant serves a small population of 32 people, reflecting its role in a rural or mountainous area of the Asiago Plateau. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent (PE) between 2,000 and 10,000. Although the population served here is well below that threshold, the plant's design capacity of 40 m³/day suggests it is sized for local needs. The actual discharge volume is 6.34 m³/day, indicating low utilization. The treated effluent is discharged into a local watercourse that ultimately drains into the Brenta River basin, flowing south toward the Adriatic Sea. The plant helps protect the sensitive alpine and pre-alpine ecosystems of the Veneto region, which are important for biodiversity and water quality in the Po River watershed.

The plant discharges into a small tributary of the Brenta River, which flows through the Veneto region into the Adriatic Sea. The Asiago Plateau area features karstic geology and sensitive freshwater ecosystems that support diverse aquatic life. The secondary treatment ensures compliance with EU standards to protect downstream water quality in the Brenta basin, a region valued for its ecological and recreational significance.