Overview
Carregado wastewater treatment plant serves Alenquer, Portugal, with a designed capacity of 1.00 and a population equivalent of 11,000. It operates under EU Urban Waste Water Treatment Directive standards.
Carregado wastewater treatment plant is located in Alenquer, Lisbon District, Portugal, serving a population equivalent of 11,000. The plant is situated near the Autoestrada do Norte in the Carregado e Cadafais area, providing essential sanitation services to this part of the Lisbon region. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (11,000 PE), the directive requires secondary treatment as a minimum, with more stringent requirements if the discharge is to sensitive areas. The designed capacity is 1.00, indicating the plant's intended scale. The plant's treated effluent likely discharges into a local watercourse that drains into the Tagus River (Tejo), one of the major Iberian rivers flowing into the Atlantic Ocean near Lisbon. The Tagus estuary is an ecologically important area supporting diverse aquatic life and migratory bird species. The plant's operation contributes to protecting this downstream environment from untreated wastewater impacts.
Environmental context
The plant's discharge likely enters a tributary of the Tagus River (Tejo), which flows through central Portugal and into the Tagus Estuary near Lisbon, ultimately reaching the Atlantic Ocean. The Tagus Estuary is a vital ecosystem supporting diverse fish, bird, and plant species, including migratory waterfowl. Proper wastewater treatment is essential to maintain water quality in this ecologically sensitive area, which is subject to national and EU water quality regulations.
Frequently asked questions
The Carregado wastewater treatment plant is located in Alenquer, Lisbon District, Portugal, near the Autoestrada do Norte in the Carregado e Cadafais area.
The plant serves a population equivalent of 11,000 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent likely discharges into a local watercourse that drains into the Tagus River, which flows into the Atlantic Ocean via the Tagus Estuary near Lisbon.
As a Portuguese wastewater treatment plant, it operates under 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 11,000 PE are required to provide at least secondary treatment, with possible tertiary treatment if discharging to sensitive areas.
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