Overview
Valgode_SPedro Sul_Vizela is a wastewater treatment plant serving São Pedro do Sul, Portugal. It treats wastewater for approximately 15,000 people as part of the region's municipal infrastructure.
Valgode_SPedro Sul_Vizela is a wastewater treatment plant located in Serrazes, São Pedro do Sul, in the Viseu district of Portugal. The plant serves a population of around 15,000 people, contributing to the sanitation needs of this inland community in the central-northern region of the country. As a Portuguese wastewater facility, the plant operates under national regulations that transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, the directive requires secondary treatment as a minimum standard, ensuring effective removal of organic matter and suspended solids before discharge. The treated effluent is released into local watercourses that drain into the Vouga River basin, ultimately flowing into the Atlantic Ocean via the Ria de Aveiro lagoon. This coastal lagoon is an ecologically sensitive area that supports diverse aquatic life and migratory bird populations, making proper treatment essential for protecting downstream habitats.
Environmental context
The plant discharges into the Vouga River basin, which flows into the Ria de Aveiro, a coastal lagoon on Portugal's Atlantic coast. This lagoon is an important ecosystem for fish, mollusks, and migratory birds, and its water quality depends on effective wastewater treatment from upstream communities. The region's temperate climate and agricultural land use further emphasize the need for nutrient removal to prevent eutrophication in the sensitive lagoon environment.
Frequently asked questions
The plant is located in Serrazes, São Pedro do Sul, in the Viseu district of Portugal.
The plant serves approximately 15,000 people in the São Pedro do Sul area.
The treated effluent is discharged into local watercourses that drain into the Vouga River basin, eventually reaching the Atlantic Ocean via the Ria de Aveiro lagoon.
As a Portuguese plant, it operates under national regulations implementing the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size.
Under the EU Urban Waste Water Treatment Directive, plants serving between 10,000 and 150,000 people are required to provide secondary treatment, which includes biological processes to remove organic matter and suspended solids.
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