CERRETO_D_ESI_MONTERUSTICO_DEP Wastewater Treatment Plant, Cerreto d'Esi, Italy

CERRETO_D_ESI_MONTERUSTICO_DEP is a wastewater treatment plant located in Cerreto d'Esi, in the province of Ancona, Italy. Serving a population of 3,638, it is classified as a small agglomeration under Italian and EU regulations. The plant is situated inland, away from coastal areas, and its operations are integrated into the local municipal infrastructure. 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. With a designed capacity of 3,500 cubic meters per day and an actual discharge volume of 534.73 cubic meters per day, the plant operates well below its capacity, indicating potential for future growth or seasonal variability. The treated effluent is discharged into local water bodies that ultimately drain into the Adriatic Sea via the Esino River basin. The plant plays a key role in protecting the water quality of the Esino River and the downstream coastal environment, supporting aquatic life and reducing nutrient loads that could cause eutrophication in the Adriatic.

The plant discharges into the Esino River basin, which flows eastward into the Adriatic Sea. The Esino River supports diverse aquatic ecosystems and is an important water resource for the region. The advanced treatment helps minimize nutrient and pollutant loads, protecting the river's ecological health and the sensitive coastal waters of the Adriatic Sea, which are subject to eutrophication pressures from agricultural and urban runoff.