ROTZO_LOC_VALLE_SABAUS Wastewater Treatment Plant, Rotzo, Veneto, Italy

ROTZO_LOC_VALLE_SABAUS is a municipal wastewater treatment plant located in Rotzo, a small town in the Veneto region of northern Italy. The plant serves a population of 322 and has a designed capacity of 400 m³ per day, with an average discharge volume of 63.75 m³ per day. It provides secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The plant operates under Italy's implementation of the EU directive, which mandates secondary treatment for all discharges from agglomerations with a population equivalent (PE) between 2,000 and 10,000. Although Rotzo's population is below this threshold, the plant's secondary treatment ensures compliance with national standards for sensitive areas. The treated effluent is discharged into local streams that drain into the Astico River, a tributary of the Brenta River, which flows into the Adriatic Sea near Venice. The plant plays a key role in protecting the water quality of the Astico-Brenta river system, which supports diverse aquatic life and is used for irrigation and recreation in the Veneto region.

The plant discharges into small streams that feed the Astico River, a tributary of the Brenta River. The Brenta flows through the Veneto plain and enters the Adriatic Sea near the Venetian Lagoon, an ecologically sensitive area. The watershed supports diverse aquatic habitats and is important for migratory fish species. Secondary treatment reduces organic load and suspended solids, helping to maintain water quality in this region.