Overview
Maceira wastewater treatment plant serves Torres Vedras, Portugal, with a designed capacity of 1.00 unit. It treats wastewater from a population of 8,600 and is located within 50 km of the coast.
The Maceira wastewater treatment plant is located in the town of Maceira, part of the municipality of Torres Vedras in the Lisbon District of Portugal. The facility serves a population of approximately 8,600 people, placing it in the small to medium agglomeration category under Portuguese and EU regulations. As a plant serving fewer than 10,000 people, it falls under the EU Urban Waste Water Treatment Directive (91/271/EEC) requirements for agglomerations of this scale. The directive mandates appropriate treatment, typically secondary treatment, for discharges into freshwater or estuarine environments. The plant is situated within 50 km of the Atlantic coast, and its treated effluent likely discharges into local watercourses that eventually reach the Atlantic Ocean. The region's watershed supports agricultural activities and natural habitats, making proper wastewater treatment essential for protecting downstream water quality and coastal ecosystems.
Environmental context
The Maceira plant is located in the Lisbon region of Portugal, within the Tagus River basin, which drains into the Atlantic Ocean near Lisbon. The receiving water bodies in this area support diverse aquatic life and are important for local agriculture and tourism. The proximity to the coast means that treated effluent ultimately reaches marine environments, where nutrient loading can affect coastal water quality and marine ecosystems. Proper treatment helps mitigate eutrophication risks in the Atlantic coastal zone.
Frequently asked questions
The Maceira wastewater treatment plant is located in Maceira, a locality in the municipality of Torres Vedras, in the Lisbon District of Portugal.
The Maceira plant serves a population of approximately 8,600 people, classifying it as a small to medium agglomeration under EU regulations.
The treated effluent from the Maceira plant is discharged into local watercourses that eventually flow into the Atlantic Ocean, given its location within 50 km of the coast.
As a plant serving fewer than 10,000 people, the Maceira plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment, typically secondary treatment, for discharges into freshwater or estuarine environments.
For agglomerations of this size in Portugal, secondary treatment is typically required under the EU Urban Waste Water Treatment Directive to reduce organic matter and suspended solids before discharge.
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