SCIGLIANO_PETRISI Wastewater Treatment Plant, Carpanzano, Calabria

SCIGLIANO_PETRISI is a wastewater treatment plant located in Carpanzano, within the province of Cosenza in the Calabria region of southern Italy. The plant serves a small population of 310 residents, reflecting its role in a rural or small-town setting. It is situated inland, more than 10 km from the coast, and operates under Italian and European regulatory frameworks. The plant provides primary treatment, which involves physical processes such as sedimentation to remove settleable solids. Primary treatment is a basic level of purification. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent (PE) of less than 2,000 are generally subject to less stringent requirements, and primary treatment may be considered appropriate for this small scale. The plant has a designed capacity of 250 m³/day and currently discharges 61.37 m³/day, indicating it operates well below its capacity. The treated effluent is discharged into a local watercourse that eventually drains into the Tyrrhenian Sea via the Savuto River or other nearby rivers. The receiving water body supports aquatic life and is part of the broader Mediterranean basin. The plant's inland location reduces direct marine impact, but its primary treatment level means that only basic pollutant removal is achieved, which could affect downstream water quality if not adequately managed.

The plant discharges into a local stream that flows into the Savuto River, which ultimately reaches the Tyrrhenian Sea. The Savuto River basin supports diverse aquatic ecosystems and is used for irrigation and recreation. The inland location reduces direct coastal impact, but primary treatment provides limited nutrient and pathogen removal, potentially affecting downstream water quality and ecological health.