Overview
Aranda de Duero wastewater treatment plant serves approximately 63,400 people in Castilla y León, Spain. It operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with secondary treatment standards for inland agglomerations.
The Aranda de Duero wastewater treatment plant is a municipal facility located in the industrial area of Allende Duero, Aranda de Duero, Burgos, in the autonomous community of Castilla y León, Spain. Serving a population of around 63,400, the plant is classified as a medium agglomeration under EU regulations. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent (PE) between 10,000 and 150,000 are required to provide secondary treatment. For inland plants like Aranda de Duero, this typically involves biological treatment to reduce organic matter and suspended solids. The plant's design and operation align with these standards, ensuring treated effluent meets regulatory limits before discharge. The plant discharges treated wastewater into the Duero River, which flows westward through Castilla y León and into Portugal, eventually reaching the Atlantic Ocean near Porto. The Duero basin supports diverse aquatic life and is an important water resource for agriculture and ecosystems in the region. The plant plays a key role in protecting the river's water quality and downstream environments.
Environmental context
The Aranda de Duero plant discharges into the Duero River, a major watercourse that flows through Spain and Portugal to the Atlantic Ocean. The Duero basin supports a variety of fish species, including migratory trout and barbel, and its riparian zones provide habitat for birds and mammals. The plant's treatment helps maintain the river's ecological balance, particularly downstream in the Arribes del Duero Natural Park, a protected area known for its deep gorges and biodiversity.
Frequently asked questions
The plant is located at Avenida de Portugal, Polígono Industrial Allende Duero, in Aranda de Duero, Burgos, Castilla y León, Spain.
The plant serves approximately 63,400 people, classifying it as a medium agglomeration under EU regulations.
Treated wastewater is discharged into the Duero River, which flows through Spain and Portugal to the Atlantic Ocean.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
For medium agglomerations in Spain, secondary biological treatment is standard, often including activated sludge or similar processes to reduce organic pollutants and suspended solids.
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