Overview
PENAFIEL wastewater treatment plant serves Peñafiel, Castilla y León, Spain, with a population equivalent of 12,800. It operates under EU Urban Waste Water Treatment Directive standards.
The PENAFIEL wastewater treatment plant is located in Peñafiel, a town in the province of Valladolid, within the autonomous community of Castilla y León, Spain. The facility serves a population equivalent of 12,800, classifying it as a medium-sized agglomeration under EU regulations. Its location inland, over 50 km from the coast, places it in a continental Mediterranean climate zone. As a Spanish wastewater facility, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more stringent treatment if the receiving waters are designated as sensitive areas. The plant's operational details, including specific treatment processes and capacity, are managed by the local water authority. The treated effluent from the PENAFIEL plant is discharged into the local hydrological network, which ultimately drains into the Duero River basin. The Duero River flows westward through Spain and Portugal, emptying into the Atlantic Ocean near Porto. This river system supports diverse aquatic life and is important for regional agriculture and water supply.
Environmental context
The PENAFIEL plant discharges into the Duero River basin, which flows through the Castilla y León region and into Portugal, reaching the Atlantic Ocean. The Duero is a major river supporting diverse fish species and riparian habitats. The plant's operations help protect downstream water quality in a region where agriculture and viticulture are prominent, reducing nutrient loads that could otherwise contribute to eutrophication in the river and its estuary.
Frequently asked questions
The PENAFIEL plant is located in Peñafiel, in the province of Valladolid, within the autonomous community of Castilla y León, Spain.
The plant serves a population equivalent of 12,800 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the local hydrological network, which flows into the Duero River basin and ultimately reaches the Atlantic Ocean.
As a Spanish facility serving over 10,000 people, the plant is required to provide secondary treatment under the EU Urban Waste Water Treatment Directive (91/271/EEC). Additional treatment may be required if the receiving waters are in a sensitive area.
For agglomerations of this size, secondary treatment is standard under EU directives. This typically involves biological treatment to reduce organic matter and suspended solids.
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