Overview
NAJERA wastewater treatment plant serves Nájera, La Rioja, Spain, with a population of approximately 17,978. It operates under EU regulations for medium agglomerations.
The NAJERA wastewater treatment plant is located in Nájera, La Rioja, Spain, serving a population of about 17,978. Situated inland in the Ebro basin, it plays a key role in managing municipal wastewater for this historic town. As a medium-sized agglomeration, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for discharges into freshwater. The plant's effluent likely flows into the Najerilla River, a tributary of the Ebro, eventually reaching the Mediterranean Sea. The region's continental Mediterranean climate influences seasonal flow variations, and the plant's operation supports local water quality standards.
Environmental context
The plant discharges into the Najerilla River, which joins the Ebro River, one of Spain's major rivers, flowing into the Mediterranean Sea via the Ebro Delta. The Ebro Delta is an ecologically sensitive area supporting diverse aquatic life and migratory birds. The plant's treatment performance is critical to maintaining water quality in this downstream ecosystem, particularly under the EU Water Framework Directive.
Frequently asked questions
The NAJERA plant is located in Nájera, La Rioja, Spain, at Huerta del Moral, 26223.
The plant serves approximately 17,978 people in the Nájera area.
The treated effluent is discharged into the Najerilla River, a tributary of the Ebro River, which flows to the Mediterranean Sea.
As a medium agglomeration (10,000-100,000 PE), the plant is regulated under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for discharges into freshwater.
For agglomerations of this size, secondary treatment (biological treatment) is standard under EU law. Many plants also incorporate nutrient removal to protect sensitive water bodies.
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