n IMIESA - Upgrading SA's water infrastructure : water & wastewater




WORK ON THE project commenced in 2012 and included the construction of a new 5 700 m3 reactor, two 24 m diameter clarifiers, a new RAS/WAS pump station, a new supernatant pump station and tanker discharge area, new sludge drying beds, renovation of the existing chlorination building, interconnecting pipework and general site works. Situated in the Gamagara Local Municipality, in the north-east Northern Cape, the existing Kathu WWTW was the only such works servicing the Kathu area. It had a capacity of 3.5 Mℓ/day with a measured inflow of 4.5 Mℓ/day, which exceeded its aeration capacity - resulting in poor effluent quality. This factor, together with the poor condition of the existing equipment, further necessitated an upgrading of the works.


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