Overview
Companheira wastewater treatment plant serves Portimão, Portugal, with a population equivalent of 131,000. Located near the coast in the Algarve region, it operates under EU Urban Waste Water Treatment Directive requirements.
Companheira is a wastewater treatment plant located in Portimão, a city in the Algarve region of southern Portugal. The plant serves a population equivalent of 131,000, placing it in the large agglomeration category under EU regulations. Its location near the Atlantic coast makes it part of Portugal's coastal wastewater infrastructure. As a large agglomeration, the plant is subject to the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment as a minimum and tertiary treatment in sensitive areas. The plant's designed capacity is 1. The regulatory framework ensures that the plant meets European standards for wastewater treatment before discharge. The plant discharges into the Atlantic Ocean via the local watershed, likely through an outfall near the coast. The receiving waters support diverse marine life and are part of the Algarve's coastal ecosystem, which includes important habitats for fish and migratory birds. The plant's operation is critical for protecting the region's water quality and tourism-dependent economy.
Environmental context
The plant's treated effluent likely discharges into the Atlantic Ocean near Portimão, via the Arade River estuary or a direct marine outfall. The coastal waters of the Algarve support diverse marine ecosystems, including seagrass beds and rocky reefs that provide habitat for fish and invertebrates. The region is also a migratory corridor for seabirds and marine species. Proper treatment is essential to prevent nutrient enrichment and protect water quality in this ecologically sensitive coastal zone.
Frequently asked questions
Companheira WWTP is located in Portimão, in the Faro district of the Algarve region, southern Portugal. The address is Estrada da Senhora da Saúde, Bom Retiro, Portimão.
The plant serves a population equivalent of 131,000, classifying it as a large agglomeration under EU regulations.
The plant likely discharges treated effluent into the Atlantic Ocean, either via the Arade River estuary or a direct marine outfall, given its proximity to the coast.
As a large agglomeration (over 100,000 PE) in Portugal, Companheira is subject to the EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment and, in sensitive coastal areas, tertiary treatment to reduce nutrients.
Plants of this scale in Portugal typically employ secondary biological treatment (e. g. , activated sludge) and may include tertiary treatment such as nutrient removal or disinfection, especially if discharging into sensitive coastal waters.
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