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Spain 2007.

Biological Treatment of the Besós




Monitoring and control of work.


  • The Besos WWTP, located between Sant Adriá de Besós and Barcelona, has the greatest processing capacity in Barcelona. It can process 525 million liters per day, comparable to 3 million residents and its associated activities.

  • It was important to alter the old WWTP for better treatment and release public space for the city without ceasing to treat the water during the execution.

  • Type of water treatment: Primary, Physical Chemical, and Biological using activated sludge.

  • Type of mud slurry treatment: co-generation, dehydration, and thermal drying.

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