Overview
Gava Viladecans wastewater treatment plant serves nearly 195,000 people in Viladecans, Catalonia, Spain. It operates under EU Urban Waste Water Treatment Directive standards for large agglomerations.
Gava Viladecans is a major wastewater treatment plant located in Viladecans, within the Baix Llobregat region of Barcelona, Catalonia, Spain. Serving a population of approximately 194,649, it is classified as a large agglomeration under EU regulations, requiring advanced treatment to protect sensitive receiving waters. The plant's designed capacity is 1.00 cubic meters per second, reflecting its role in managing municipal wastewater from a densely populated urban area. As a facility in Spain, it operates under the framework of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for all agglomerations over 2,000 population equivalent and tertiary treatment in sensitive areas. The treated effluent is discharged into the Mediterranean Sea via the Llobregat River delta, a coastal ecosystem that supports diverse aquatic life and is important for regional biodiversity. The plant's location within 50 km of the coast underscores its environmental significance in preventing nutrient pollution and protecting marine water quality.
Environmental context
The plant discharges into the Llobregat River, which flows into the Mediterranean Sea near Barcelona. This coastal area supports a variety of marine species and is a key migratory corridor for birds. The region's Mediterranean climate and urban runoff make effective wastewater treatment critical to prevent eutrophication and protect bathing waters.
Frequently asked questions
The plant is located in Viladecans, in the Baix Llobregat region of Barcelona, Catalonia, Spain.
The plant serves approximately 194,649 people, classifying it as a large agglomeration under EU regulations.
Treated effluent is discharged into the Llobregat River, which flows into the Mediterranean Sea near Barcelona.
As a large agglomeration serving over 150,000 people, the plant is required to meet stringent treatment standards under the EU UWWTD, including secondary treatment and potentially tertiary treatment to protect sensitive coastal waters.
Plants of this scale in Spain typically employ secondary biological treatment followed by disinfection, and often include nutrient removal to comply with EU directives for sensitive areas like the Mediterranean coast.
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