ABLITAS Wastewater Treatment Plant, Ablitas, Navarra, Spain

The ABLITAS wastewater treatment plant is located in Ablitas, a municipality in the province of Navarra, Spain. It served a population of approximately 3,102 people, classifying it as a small agglomeration under Spanish and EU regulations. The plant is currently closed, but during its operation it provided secondary treatment to the community's wastewater. As a secondary treatment facility, the plant met the minimum requirements set by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity was 3,500 m³/day, with an average discharge volume of 562.23 m³/day, indicating the plant operated well below its capacity. The plant's closure may reflect upgrades or consolidation with other facilities in the region. The treated effluent was 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 contributed to protecting the water quality of the Ebro basin and the downstream marine environment.

The plant's discharge enters the Ebro River basin, which flows into the Mediterranean Sea. The Ebro River supports diverse aquatic life and is an important agricultural and ecological resource in northeastern Spain. The Mediterranean Sea is a semi-enclosed sea with sensitive marine ecosystems, making effective wastewater treatment crucial for preventing eutrophication and protecting biodiversity.