SEDILO_LOC_PUTZOLA Wastewater Treatment Plant, Sedilo, Sardinia

SEDILO_LOC_PUTZOLA is an advanced wastewater treatment plant located in Sedilo, a town in the province of Oristano on the island of Sardinia, Italy. The plant serves a population of approximately 3,555 people, reflecting its role in managing municipal wastewater for this inland community. The plant employs advanced treatment processes, which go beyond the secondary treatment standards required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,870 m³/day and a current discharge volume of 703.76 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Tirso River basin and then into the Mediterranean Sea. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of Sardinia, including the nearby Lake Omodeo, a key water resource for the region.

The plant discharges into the Tirso River basin, which flows into the Mediterranean Sea via the Gulf of Oristano. The downstream environment includes Lake Omodeo, an artificial reservoir that supports irrigation and drinking water supplies. Advanced treatment at this plant reduces nutrient loads, helping to prevent eutrophication in the lake and coastal waters, which are ecologically sensitive areas supporting diverse aquatic life and migratory bird populations.