The selected process is an activated sludge system which includes: 9 biological reactors, 18 secondary decanters, 4 centrifuges, sludge thickeners, and the corresponding deodorising facilities.
- Project: Biological Treatment of the Besós Purification plant.
- Entity: Ministry of the Environment. Agencia Catalana del Agua.
- Location: Barcelona (Catalonia). Spain.
- Capacity: Flow: 525,000 m3/day. Population: 2,800,000