PORTO COLOM Wastewater Treatment Plant, Felanitx, Illes Balears

PORTO COLOM is a wastewater treatment plant located in Felanitx, on the island of Mallorca in the Illes Balears region of Spain. The plant serves a population of 5,230 and is situated near the coastal area of Cala Marçal, a popular tourist destination. As part of Spain's wastewater infrastructure, it plays a key role in protecting the local marine environment. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity is 18,000 m³/day, with an average discharge volume of 866.29 m³/day, indicating ample capacity for seasonal population fluctuations common in Mediterranean tourist areas. Treated effluent is discharged into the coastal waters of the Mediterranean Sea, specifically near the southeastern coast of Mallorca. The surrounding marine ecosystem includes seagrass meadows and diverse marine life, making proper treatment essential to prevent nutrient pollution and protect water quality in this ecologically sensitive region.

The plant discharges into the Mediterranean Sea near the southeastern coast of Mallorca, a region known for its clear waters and marine biodiversity. The coastal waters support seagrass meadows (Posidonia oceanica), which are crucial for carbon sequestration and habitat provision. Effective secondary treatment helps minimize nutrient loading that could lead to algal blooms and degradation of these sensitive ecosystems.