Overview
Parada wastewater treatment plant serves Águas Santas, Maia, Porto, Portugal, with a population equivalent of 91,500. The plant is located within 50 km of the coast and operates under EU Urban Waste Water Treatment Directive requirements.
Parada is a wastewater treatment plant serving the municipality of Águas Santas, in the Maia district of Porto, Portugal. The plant handles a population equivalent of 91,500, placing it in the medium-to-large agglomeration category under EU classification. Its location in the Porto metropolitan area means it supports a densely populated urban region with significant industrial and residential wastewater demands. As a Portuguese facility, Parada operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. The plant's designed capacity is 1.00 (likely in cubic meters per day or similar unit), indicating a substantial infrastructure investment to meet regional needs. The treated effluent from Parada likely discharges into local watercourses that drain into the Atlantic Ocean via the Douro River basin or nearby coastal systems. The plant's proximity to the coast (within 50 km) underscores its role in protecting coastal water quality and marine ecosystems from nutrient pollution and pathogens. Effective treatment at this scale is critical for maintaining the ecological health of the Atlantic coastal zone, which supports fisheries, tourism, and biodiversity.
Environmental context
Parada's treated wastewater ultimately flows into the Atlantic Ocean, likely via the Douro River or smaller coastal streams in the Porto region. The downstream environment includes estuarine and coastal habitats that support diverse aquatic life, including migratory fish species and marine invertebrates. Protecting these waters from excessive nutrient loads and contaminants is essential for maintaining water quality standards and ecosystem services in the region.
Frequently asked questions
Parada wastewater treatment plant is located at Rua da Ponte de Parada, Parada, in the parish of Águas Santas, Maia, Porto district, Portugal.
Parada serves a population equivalent of 91,500, classifying it as a medium-to-large agglomeration under EU standards.
Parada likely discharges treated effluent into local watercourses that drain into the Atlantic Ocean, possibly via the Douro River basin or nearby coastal streams.
As a Portuguese plant, Parada operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations over 15,000 PE and tertiary treatment in sensitive areas.
For a plant of this scale in Portugal, secondary treatment is mandatory under EU law, and tertiary treatment may be required if the receiving waters are designated as sensitive areas, such as coastal zones or estuaries.
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