Depuratore Colubro Wastewater Treatment Plant, Artena, Lazio, Italy

Depuratore Colubro is a municipal wastewater treatment plant located in Artena, a town in the Lazio region of central Italy. The plant serves a population of approximately 2,300 people, reflecting its role in managing domestic wastewater for this small community. The facility 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 2,500 m³/day and a discharge volume of 455.32 m³/day, the plant operates well within its capacity, indicating effective management of local wastewater flows. The treated effluent is discharged into the local watershed, which ultimately drains into the Tyrrhenian Sea via the Tiber River basin. The plant's advanced treatment helps protect downstream water quality and supports the ecological health of the region's aquatic environments.

The plant discharges into the Tiber River basin, which flows through Lazio and into the Tyrrhenian Sea near Rome. This watershed supports diverse aquatic life and is an important resource for agriculture and recreation. The advanced treatment at Depuratore Colubro reduces nutrient and pollutant loads, helping to maintain water quality in the Tiber and its downstream coastal waters.