Guadalajara WWTP

Guadalajara WWTP

Operation and Maintenance of Guadalajara WWTP (Spain).

The treatment process consists of:

  • Pretreatment
  • 3 x primary settlers
  • 3 x activated sludge bioreactor using surface aerators (turbines)
  • 3 x secondary settlers
  • 3 biological treatment lines using activated sludge type A2O, with flow-piston reactor with nutrient removal
  • 3 x secondary decanting.
  • Treatment of sludge by gravity thickener (primary sludge), flotation thickener (secondary sludge), anaerobic digestion and centrifugal dehydration
  • It has energy use of the generated biogas, with 2 motor generators. 


Treated volume (m3/d)

25 years

Contract period


Sacyr´s participation