Overview
Sant Pere de Ribes-Sitges wastewater treatment plant serves over 40,000 people in Catalunya, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
The Sant Pere de Ribes-Sitges wastewater treatment plant is located in the municipality of Sant Pere de Ribes, within the province of Barcelona, Catalunya, Spain. It serves a population of approximately 40,361 people, placing it in the medium agglomeration category under EU regulations. The plant is situated near the coastal town of Sitges, within 50 km of the Mediterranean Sea. As a facility in the European Union, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations between 10,000 and 150,000 population equivalent. The directive also mandates more advanced treatment if the discharge enters sensitive areas. The plant's designed capacity is 1.00 (likely in cubic meters per day or similar units), indicating a facility sized for its service population. The treated effluent from the plant ultimately discharges into the Mediterranean Sea, likely via a local watercourse or directly through an outfall. The coastal environment of the Garraf region supports diverse marine life and is an important area for tourism and recreation. Proper treatment is essential to protect water quality and the ecological health of the coastal zone.
Environmental context
The plant discharges into the Mediterranean Sea, a semi-enclosed sea with limited water exchange, making it sensitive to nutrient pollution. The Garraf coast features rocky shores and seagrass meadows that support diverse aquatic life, including fish and invertebrates. Effective wastewater treatment helps prevent eutrophication and protects the ecological balance of this coastal ecosystem.
Frequently asked questions
The plant is located in Sant Pere de Ribes, in the province of Barcelona, Catalunya, Spain. It serves the municipalities of Sant Pere de Ribes and Sitges.
The plant serves approximately 40,361 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the Mediterranean Sea, likely via a local stream or direct outfall. The plant is within 50 km of the coast.
As an EU facility serving over 10,000 people, it must comply with Directive 91/271/EEC, which requires secondary treatment as a minimum. If the discharge area is designated as sensitive, tertiary treatment may be required.
In Spain, plants of this scale typically employ secondary biological treatment, such as activated sludge or biofiltration, to meet EU standards. Many also include nutrient removal to protect coastal waters.
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