Overview
Arévalo wastewater treatment plant serves approximately 19,000 people in Castilla y León, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.
The Arévalo wastewater treatment plant is located in the municipality of Arévalo, in the province of Ávila, within the autonomous community of Castilla y León, Spain. The plant serves a population of approximately 19,000 people, classifying it as a medium-sized agglomeration under EU regulations. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent between 10,000 and 150,000 are required to have secondary treatment as a minimum. For discharges into sensitive areas, more stringent treatment may be required. The regulatory framework ensures compliance with national and EU standards. The treated wastewater from the plant is discharged into the local water environment, ultimately contributing to the Duero River basin. The Duero River flows westward through Spain and into Portugal, emptying into the Atlantic Ocean at Porto. The region's aquatic ecosystems rely on proper wastewater treatment to maintain water quality and support biodiversity.
Environmental context
The plant discharges into the Duero River basin, which drains into the Atlantic Ocean. The Duero River supports diverse aquatic life and is an important migratory corridor for fish species. Proper treatment is essential to protect downstream water quality and ecological health in both Spain and Portugal.
Frequently asked questions
The plant is located in Arévalo, in the province of Ávila, within the autonomous community of Castilla y León, Spain.
The plant serves approximately 19,000 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated wastewater is discharged into the local water environment, ultimately flowing into the Duero River basin and then 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 and more stringent treatment if discharging into sensitive areas.
Under the EU UWWTD, plants serving between 10,000 and 150,000 population equivalent are required to have at least secondary treatment. In Spain, this is implemented through national regulations, and plants may also have tertiary treatment if required by local conditions.
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