Overview
Sangalhos wastewater treatment plant serves Anadia, Portugal, with a designed capacity of 1.00 (units unspecified). It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Sangalhos wastewater treatment plant is located in Anadia, in the Aveiro district of Portugal. It serves a population of approximately 8,100 people, placing it in the small-to-medium agglomeration category under EU classification. As a Portuguese facility, Sangalhos operates under the EU Urban Waste Water Treatment Directive 91/271/EEC. For agglomerations serving between 2,000 and 10,000 population equivalents, the directive requires secondary treatment (biological treatment) as a minimum standard. Regulatory compliance would typically involve secondary treatment or equivalent. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Atlantic Ocean via the Vouga River basin or nearby coastal systems. The region is characterized by agricultural and light industrial activity, and the receiving water bodies support diverse aquatic life. Proper treatment is essential to protect downstream ecosystems and water quality in the Aveiro region.
Environmental context
The plant's treated effluent enters the local drainage network, which flows into the Vouga River or adjacent coastal streams before reaching the Atlantic Ocean near Aveiro. The downstream environment includes the Ria de Aveiro, a coastal lagoon that supports diverse aquatic life and is an important migratory corridor for birds. Effective wastewater treatment helps maintain water quality in this ecologically sensitive area.
Frequently asked questions
The Sangalhos wastewater treatment plant is located in Anadia, in the Aveiro district of Portugal, at Estrada Real, Avelãs de Caminho.
The plant serves a population of approximately 8,100 people, classifying it as a small-to-medium agglomeration under EU standards.
The plant discharges treated effluent into the local watershed, which ultimately flows into the Atlantic Ocean via the Vouga River basin or nearby coastal streams.
As a Portuguese plant serving over 2,000 population equivalents, Sangalhos is subject to the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size.
For agglomerations between 2,000 and 10,000 population equivalents, the EU directive mandates secondary treatment (biological treatment). Portuguese plants typically implement activated sludge or similar processes to meet this standard.
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