Overview
VELILLA wastewater treatment plant serves Velilla de San Antonio in the Comunidad de Madrid, Spain, with a population equivalent of 55,751. It operates under the EU Urban Waste Water Treatment Directive.
The VELILLA wastewater treatment plant is located in Velilla de San Antonio, a municipality in the Comunidad de Madrid, Spain. It serves a population equivalent of 55,751, placing it in the medium agglomeration category under EU regulations. The plant is part of the regional wastewater infrastructure managed by the Comunidad de Madrid. As a plant of this scale in Spain, VELILLA is required to meet secondary treatment standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations between 10,000 and 150,000 population equivalent, secondary treatment is the minimum requirement, with tertiary treatment needed if the receiving waters are designated as sensitive areas. The plant discharges treated effluent into the local water system, which ultimately drains into the Tagus River basin. The Tagus River is the longest river in the Iberian Peninsula, flowing through Spain and Portugal to the Atlantic Ocean. The river supports diverse aquatic life and is an important water resource for agriculture and urban supply. The plant's operations contribute to protecting the water quality of this major river system.
Environmental context
The VELILLA plant discharges into the local catchment that feeds the Tagus River basin. The Tagus River flows westward through central Spain and Portugal, emptying into the Atlantic Ocean near Lisbon. The river supports a variety of fish species and provides habitat for migratory birds. Downstream ecosystems rely on adequate water quality, making the plant's treatment performance important for maintaining ecological balance in the basin.
Frequently asked questions
The VELILLA plant is located in Velilla de San Antonio, a municipality in the Comunidad de Madrid, Spain. Its address is Velilla de San Antonio, Comunidad de Madrid, 28891, España.
The plant serves a population equivalent of 55,751, which classifies it as a medium agglomeration under EU regulations.
The plant discharges treated effluent into the local water system, which ultimately flows into the Tagus River basin. The Tagus River carries the water to the Atlantic Ocean.
As a Spanish plant serving over 10,000 people, VELILLA operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment as a minimum. If the receiving waters are sensitive, tertiary treatment may be required.
For agglomerations between 10,000 and 150,000 population equivalent, the EU directive requires secondary treatment. In Spain, many such plants also incorporate nutrient removal to meet water quality standards in sensitive areas.
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