Overview
CAZALLA DE LA SIERRA wastewater treatment plant serves the town of Cazalla de la Sierra in Andalusia, Spain. It treats wastewater from approximately 9,719 people under the EU Urban Waste Water Treatment Directive.
The CAZALLA DE LA SIERRA wastewater treatment plant is located in Cazalla de la Sierra, a town in the province of Seville, Andalusia, Spain. The plant serves a population of approximately 9,719 residents, classifying it as a medium agglomeration under EU regulations. As a Spanish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive aims to protect the environment from the adverse effects of urban wastewater discharges. The treated effluent from the plant is discharged into local water bodies that eventually drain into the Guadalquivir River basin, which flows into the Atlantic Ocean. The plant plays a key role in protecting the region's water quality and supporting the ecological health of downstream aquatic ecosystems.
Environmental context
The plant discharges into the Guadalquivir River basin, a major watershed in southern Spain that drains into the Atlantic Ocean near Sanlúcar de Barrameda. The Guadalquivir supports diverse aquatic life and is an important migratory corridor for fish species. The plant's treatment helps reduce nutrient and pollutant loads, protecting downstream water quality and the ecologically sensitive Doñana wetlands area.
Frequently asked questions
The plant is located in Cazalla de la Sierra, in the province of Seville, Andalusia, Spain.
The plant serves approximately 9,719 people, classifying it as a medium agglomeration under EU regulations.
The treated effluent is discharged into local water bodies within the Guadalquivir River basin, which flows into the Atlantic Ocean.
As a Spanish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size.
Under the EU Urban Waste Water Treatment Directive, plants serving between 2,000 and 10,000 population equivalents typically require secondary treatment, which includes biological treatment to reduce organic matter and suspended solids.
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