Ave Wastewater Treatment Plant, Vila do Conde, Portugal

The Ave wastewater treatment plant is situated in Tougues, Vila do Conde, in the Porto district of Portugal. It serves a population equivalent of 120,000, classifying it as a large agglomeration under EU regulations. The plant's proximity to the Atlantic coast places it in a sensitive coastal zone. As a facility serving over 100,000 people, the Ave 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. Given its coastal location, the plant likely employs advanced treatment to protect marine water quality. The designed capacity is 1.00 (likely in cubic meters per second or similar unit), indicating a substantial infrastructure. The treated effluent from the Ave plant discharges into the Atlantic Ocean via the local drainage network. The coastal waters of northern Portugal support diverse marine life and are important for fisheries and tourism. Proper treatment at this plant helps prevent eutrophication and maintains the ecological health of the region's coastal ecosystems.

The Ave plant discharges into the Atlantic Ocean near Vila do Conde, part of the Portuguese coastal zone. This area is ecologically sensitive, supporting diverse marine habitats and serving as a nursery for fish species. The plant's location within 50 km of the coast underscores the importance of advanced treatment to minimize nutrient loading and protect coastal water quality.