San Donato di Ninea Capoluogo Wastewater Treatment Plant, Vaccarizzo Albanese, Calabria

San Donato di Ninea Capoluogo is a former wastewater treatment plant located in Vaccarizzo Albanese, a municipality in the province of Cosenza, Calabria, Italy. The plant was designed to serve a small population of 300 residents, reflecting the rural and low-density character of the area. The plant provided secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent below 2,000. Although the plant is now closed, its design capacity of 300 m³/day indicates it was sized to handle the local domestic wastewater load. The treated effluent was likely discharged into a local watercourse that drains toward the Ionian Sea, as the plant is located within 10 km of the coast. The surrounding region features a Mediterranean climate with seasonal rainfall, and the local watershed supports agricultural activities and natural habitats.

The plant is situated in the Crati River basin, which flows into the Gulf of Taranto in the Ionian Sea. The downstream environment includes coastal wetlands and marine ecosystems that are sensitive to nutrient inputs. Secondary treatment reduces organic pollutants but may not fully remove nutrients, which could contribute to eutrophication in the receiving waters.