ALHAMA DE ARAGON Wastewater Treatment Plant, Alhama de Aragón, Spain

The ALHAMA DE ARAGON wastewater treatment plant is located in Alhama de Aragón, a municipality in the province of Zaragoza, Aragón, Spain. The plant serves a population of approximately 1,931 residents, classifying it as a small-scale facility within the region's wastewater infrastructure. 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 2,500 m³/day, with a reported discharge volume of 349.99 m³/day, indicating operational capacity well below design limits. The treated effluent is discharged into the local watershed, which ultimately drains into the Ebro River basin. The Ebro River is one of Spain's major rivers, flowing into the Mediterranean Sea. The plant's operation helps protect the ecological quality of the Ebro basin and downstream coastal waters.

The plant discharges into the local watercourse, which is part of the Ebro River basin. The Ebro River flows through northeastern Spain and empties into the Mediterranean Sea, forming a large delta that supports diverse aquatic life and migratory bird populations. The plant's secondary treatment reduces organic pollutants and nutrients, helping to maintain water quality in this ecologically sensitive basin.