CALLUGO_AMN_DEP Wastewater Treatment Plant, Amandola, Marche, Italy

CALLUGO_AMN_DEP is a municipal wastewater treatment plant located in Amandola, in the Marche region of Italy. The plant serves a small population of 399 residents, reflecting its role in a rural or small-town setting within the Fermo province. As a secondary treatment facility, it provides biological treatment to reduce organic pollutants and suspended solids. The plant has a designed capacity of 500 cubic meters per day and reports a discharge volume of 99 cubic meters, indicating it operates well below its maximum capacity. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), small agglomerations like this are required to provide appropriate treatment, and secondary treatment meets the standard for discharges into freshwater or estuarine environments. The treated effluent is discharged into the local watershed, which ultimately drains into the Adriatic Sea via the Tenna River basin. The Marche region is characterized by hilly terrain and a Mediterranean climate, with the Tenna River supporting diverse aquatic life and agricultural activities downstream. Proper treatment at this plant helps protect the river's water quality and the coastal ecosystem of the Adriatic.

The plant discharges into the Tenna River basin, which flows eastward through the Marche region and empties into the Adriatic Sea. The Tenna River supports a variety of fish species and is used for irrigation and recreation. The Adriatic Sea is a semi-enclosed basin with sensitive marine habitats, including seagrass meadows and nursery areas for fish. Effective secondary treatment at this plant reduces nutrient and organic loads, helping to prevent eutrophication and maintain water quality in the river and coastal zone.