ISOLE_TREMITI Wastewater Treatment Plant, Tremiti Islands, Foggia, Puglia

The ISOLE_TREMITI wastewater treatment plant is located on the Tremiti Islands, part of the municipality of Foggia in the Puglia region of Italy. This facility serves the island community, with a population equivalent of 2,100, and is designed to handle up to 5,000 cubic meters of wastewater per day. 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. Advanced treatment typically includes nutrient removal to protect sensitive receiving waters, which is particularly relevant for coastal and marine environments. The treated effluent is discharged into the Adriatic Sea, a semi-enclosed basin with limited water exchange. The surrounding marine ecosystem supports diverse aquatic life, including seagrass meadows and fish populations, making advanced treatment essential for minimizing nutrient loading and preserving water quality in this ecologically sensitive area.

The plant discharges into the Adriatic Sea, which receives waters from the Po River and other Italian rivers before flowing into the Ionian Sea and ultimately the Mediterranean. The coastal waters around the Tremiti Islands are ecologically sensitive, supporting seagrass meadows and diverse marine fauna. Advanced treatment helps reduce nutrient inputs that could otherwise contribute to eutrophication in this semi-enclosed sea.