Overview
Brea de Aragón wastewater treatment plant serves approximately 12,900 people in Aragón, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
The Brea de Aragón wastewater treatment plant is located in the municipality of Brea de Aragón, within the province of Zaragoza in the autonomous community of Aragón, Spain. The facility serves a population of approximately 12,900 residents, classifying it as a medium-sized agglomeration under European Union regulations. As a plant in Spain, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent between 2,000 and 15,000. The directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas, such as those prone to eutrophication. The plant discharges treated effluent into the local watershed, which ultimately drains into the Ebro River basin. The Ebro River is one of the most important rivers in Spain, flowing into the Mediterranean Sea. The treatment plant plays a key role in protecting the water quality of the Isuela River and downstream ecosystems, supporting aquatic life and preventing nutrient pollution.
Environmental context
The plant discharges into the Isuela River, a tributary of the Ebro River, which flows into the Mediterranean Sea. The Ebro River basin supports diverse aquatic habitats and is an important agricultural and ecological corridor. Effective wastewater treatment is essential to prevent eutrophication and protect downstream ecosystems, including the Ebro Delta, a region of high ecological value.
Frequently asked questions
The plant is located in Brea de Aragón, in the province of Zaragoza, within the autonomous community of Aragón, Spain. Its address is Poligono Río Isuela, Brea de Aragón.
The plant serves approximately 12,900 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the Isuela River, which flows into the Ebro River and eventually reaches the Mediterranean Sea.
Under the EU UWWTD (91/271/EEC), agglomerations with a population equivalent between 2,000 and 15,000, such as Brea de Aragón, are required to provide secondary treatment. If the receiving waters are sensitive, more advanced treatment may be necessary.
In Spain, plants of this scale typically employ secondary biological treatment, such as activated sludge or trickling filters, to meet EU standards. Some may also include nutrient removal if discharging into sensitive areas.
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