ALBASANTA EULALIA Wastewater Treatment Plant, Alba, Aragón, Spain

ALBASANTA EULALIA is a wastewater treatment plant located in Alba, within the province of Teruel, Aragón, Spain. The plant serves a small population of 1,419 residents, reflecting its role in a rural community. It operates under Spain's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for treatment based on population size and receiving water sensitivity. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 2,438 m³/day and a current discharge volume of 257.19 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. As a small agglomeration, the EU directive requires appropriate treatment to protect local water quality. The treated effluent is discharged into the local watershed, which ultimately drains into the Ebro River basin, one of Spain's major river systems. The Ebro River flows eastward into the Mediterranean Sea, supporting diverse aquatic ecosystems and agricultural irrigation. The plant's inland location, over 50 km from the coast, reduces direct marine impact but emphasizes the importance of protecting freshwater resources.

The plant discharges into the Ebro River basin, which flows through northeastern Spain to the Mediterranean Sea. This watershed supports irrigated agriculture, wetlands, and habitats for species such as the European eel and various waterfowl. The Ebro Delta, a ecologically sensitive area downstream, is a key stopover for migratory birds and relies on adequate water quality from upstream treatment plants.