Santa Margherita di Pula Sa Murta Bianca 2 Wastewater Treatment Plant, Domus De Maria, Sardinia

Santa Margherita di Pula Sa Murta Bianca 2 is an advanced wastewater treatment plant located in Domus De Maria, in the Sardinia region of Italy. The facility serves a small population of 120 residents, reflecting its role in a coastal community. The plant is situated near the coast, within 10 km of the shoreline, and operates under Italian and EU regulations. The plant employs advanced treatment processes, ensuring a high level of pollutant removal. With a designed capacity of 120 m³/day and a current discharge volume of 23.76 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal demand. As an advanced treatment plant, it meets stringent standards for nutrient removal and effluent quality, typical for sensitive coastal areas under the EU Urban Waste Water Treatment Directive. The treated effluent is discharged into the local coastal environment, likely into the Mediterranean Sea via a nearby watercourse. The area is ecologically sensitive, supporting marine biodiversity and tourism. The plant's advanced treatment helps protect the coastal waters and the Gulf of Cagliari, which is an important ecological and economic resource for Sardinia.

The plant discharges into the coastal waters of southern Sardinia, which flow into the Mediterranean Sea. The local watershed includes small streams and groundwater that drain into the Gulf of Cagliari, a semi-enclosed basin supporting seagrass meadows, fish nurseries, and migratory bird habitats. Advanced treatment is critical here to prevent nutrient enrichment and protect the region's marine ecosystem, which is vital for tourism and fisheries.