testate interne 1920testate interne 1920

Sokoto Potabilization Plant

Duration of the project: 1987-1990

Client: Sokoto Acqueduct

Clariflocculation, filtration over rapid-gravity filters, disinfection with gaseous chlorine. The plant treats surface water from the Garonyo artificial basin and from the Rima river for the Sokoto Acqueduct. 

The Sokoto water supply extension project is located in Sokoto State, in north-western Nigeria. The project was designed and constructed from 1987 to 1990 for the Sokoto State Water Board. The plant treats surface water from the Garonyo artificial basin and from the Rima river for the Sokoto Acqueduct by clariflocculation, filtration over rapid-gravity filters, disinfection with gaseous chlorine.

The execution of the project has given to this area a contribution to solve the problem of the desertification, a growing menace in most states of North Africa, especially the ones that lie near the Sahara desert.

Dati tecnici:

Capacity

110,000 m3/d (25 MIGD)

Intake Works and Treatment Plant

  • lifting station: 4,600 m3/h
  • main outgoing pipeline (2x700 dia. x 6.5 km): 13 km
  • water treatment plant: 4,500 m3/h

Water Distribution System

  • buried pipelines: 70 km
  • 3 steel ground reservoirs ( overall capacity 9,150 + 7,000 + 5,000 m3): 21,150 m3
  • 3 elevated steel reservoirs ( overall capacity 3 x 1,400 m3): 4,200 m3
  • pumping stations (rated discharge):
    • 3A 540 1/s
    • 3B 699 1/s
    • 4A 896 1/s
    • 4C 552 1/s
    • 5B 1,250 1/s
    • 6D 651 1/s
  • generating sets for pumping stations (installed capacity): 8,375 kVA
    8 x 1,000 kVA + 1 x 375 kVA