Overview
Serzedelo I is a wastewater treatment plant serving Guimarães, Portugal, with a population equivalent of 126,000. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Serzedelo I is a wastewater treatment plant located in Serzedelo, Guimarães, in the Braga district of northern Portugal. The plant serves a population equivalent of 126,000, classifying it as a large agglomeration under EU regulations. Its location in the Ave River basin places it within a region characterized by urban and industrial activity. As a facility serving over 100,000 people, Serzedelo I is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary biological treatment as a minimum. For discharges into sensitive areas, tertiary treatment may be necessary to reduce nutrients. The plant's designed capacity is 1. The treated effluent from Serzedelo I is discharged into the local watershed, which drains into the Ave River and eventually reaches the Atlantic Ocean near Vila do Conde. The downstream environment supports diverse aquatic life and is an important coastal zone for fisheries and recreation. Proper treatment helps protect water quality in this ecologically sensitive area.
Environmental context
Serzedelo I discharges into the Ave River basin, which flows westward through the Braga district and empties into the Atlantic Ocean near Vila do Conde. The downstream coastal zone supports diverse marine life and is used for fishing and recreation. Effective wastewater treatment is critical to prevent nutrient enrichment and protect the ecological health of the river and coastal waters.
Frequently asked questions
Serzedelo I is located in Serzedelo, Guimarães, in the Braga district of northern Portugal.
Serzedelo I serves a population equivalent of 126,000, classifying it as a large agglomeration under EU regulations.
The treated effluent from Serzedelo I is discharged into the local watershed, which drains into the Ave River and eventually reaches the Atlantic Ocean.
As a large agglomeration serving over 100,000 people, Serzedelo I is required to meet secondary treatment standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). If the receiving waters are sensitive, tertiary treatment may be needed.
In Portugal, wastewater treatment plants serving agglomerations of this size typically employ secondary biological treatment, such as activated sludge, to meet EU standards. Some facilities also include nutrient removal to protect sensitive coastal waters.
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