Baix Llobregat WWTP
Barcelona, Spain
Wastewater
Project type
420.000 m³/day
Daily capacity
The Baix Llobregat Wastewater Treatment Plant, with a treatment capacity of 420,000 m³ per day, is one of the largest wastewater treatment facilities in Europe.

The project involved the design and construction of the water treatment line for a facility serving 2.27 million population equivalent, supporting wastewater management across the Barcelona metropolitan area.
Beyond treatment capacity, the plant plays a significant environmental role by helping maintain ecological flows in the Llobregat River, supporting agricultural irrigation and contributing to the conservation of wetlands within the delta area




Project data
Project data
·
14.83 million ft³/day treatmen capacity
·
Serves 2,275,000 population
·
Pre-treatment with 8 lines and a total flow rate of 512.1 ft³ / s
·
12 primary clarifiers
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12 circular secondary decanters
·
1.9-mile submarine discharge outlet







