Prima Porta I Via Dorno Wastewater Treatment Plant, Roma, Italy

Prima Porta I Via Dorno is a wastewater treatment plant located in the Prima Porta district of Roma, in the Lazio region of Italy. The facility serves a population of approximately 3,000 residents and is part of the municipal wastewater infrastructure for the Roma Capitale area. The plant is situated inland, more than 10 km from the Tyrrhenian Sea coast. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,000 m³/day and a current discharge volume of 593.89 m³/day, the facility operates well within its capacity. As an Italian plant, it is subject to national regulations implementing the EU directive, which mandates appropriate treatment levels to protect receiving water bodies. The treated effluent is discharged into local watercourses that eventually drain into the Tiber River basin, which flows through Roma and into the Tyrrhenian Sea. The plant plays a key role in protecting the Tiber River and downstream coastal waters from nutrient pollution and pathogens, supporting aquatic life and recreational uses in the region.

The plant discharges into the Tiber River basin, which flows through Roma and into the Tyrrhenian Sea. The Tiber is a major Italian river supporting diverse aquatic ecosystems and providing water for agriculture and urban use. Downstream, the Tiber delta and coastal areas are ecologically sensitive, hosting migratory birds and marine life. Advanced treatment at this plant helps reduce nutrient loads and protect these environments from eutrophication.