PERNA_CHIAIAMARI Wastewater Treatment Plant, Arpino, Lazio, Italy

PERNA_CHIAIAMARI is an advanced wastewater treatment facility located in Arpino, a town in the province of Frosinone, Lazio, Italy. The plant serves a small population of around 700 residents, reflecting its role in a rural or small-town setting within the Liri Valley. 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. This high level of treatment ensures effective removal of nutrients and pollutants, meeting stringent environmental standards for sensitive areas. Treated effluent from the plant is discharged into the local water system, which flows into the Liri River. The Liri River is a key watercourse in central Italy, eventually joining the Garigliano River before reaching the Tyrrhenian Sea. The plant's advanced treatment helps protect downstream aquatic ecosystems and supports water quality in the region.

The plant discharges into the Liri River basin, which drains into the Garigliano River and ultimately the Tyrrhenian Sea. The Liri River supports diverse aquatic life and is an important water resource for agriculture and communities in the Lazio region. Advanced treatment at this facility helps minimize nutrient loading and protects the ecological health of the downstream river and coastal environment.