Overview
Arcos wastewater treatment plant serves Anadia, Portugal, treating wastewater for approximately 9,700 people. The facility operates under Portugal's implementation of the EU Urban Waste Water Treatment Directive.
Arcos is a wastewater treatment plant located in Anadia, in the Aveiro district of Portugal. It serves a population of approximately 9,700 people, classifying it as a medium-sized agglomeration under EU regulations. The plant is situated inland, away from the coast, and its operations are part of the municipal wastewater infrastructure for the region. As a Portuguese facility, Arcos operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the discharge enters sensitive areas. The plant is expected to meet these EU standards to protect water quality. The treated effluent from Arcos likely discharges into a local watercourse that eventually flows into the Atlantic Ocean via the Vouga River basin or nearby coastal lagoons. The region's water bodies support diverse aquatic life and are important for local agriculture and tourism. Proper treatment helps maintain the ecological health of these downstream environments.
Environmental context
The plant discharges into the Vouga River basin, which flows into the Ria de Aveiro, a coastal lagoon system connected to the Atlantic Ocean. This lagoon is ecologically sensitive, supporting diverse aquatic life including fish, birds, and invertebrates. The area is also important for migratory species and local fisheries. Effective wastewater treatment is crucial to prevent nutrient enrichment and maintain water quality in this dynamic coastal ecosystem.
Frequently asked questions
The Arcos wastewater treatment plant is located in Anadia, in the Aveiro district of Portugal. Its address is Colégio de Nossa Senhora da Assunção, Rua Colégio, Malaposta, Arcos e Mogofores, Anadia.
The Arcos plant serves approximately 9,700 people, making it a medium-sized agglomeration under EU classification.
The treated effluent from Arcos likely discharges into a local watercourse within the Vouga River basin, which flows into the Ria de Aveiro lagoon and then the Atlantic Ocean.
As a Portuguese facility, Arcos operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size and additional treatment if discharging to sensitive areas.
Under the EU Urban Waste Water Treatment Directive, plants serving between 2,000 and 15,000 population equivalent are required to have secondary treatment. In Portugal, this is typically achieved through biological processes such as activated sludge or trickling filters.
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