Infrastructure

Water Treatment Plants

Ogongo Water Treatment Plant

Capacity of plant:       1500 m3/h Source of water :         Calueque Canal from Angola Year of construction:   N/A Treatment steps :        Chemical dosing. pre- chlorination, flash mixing, settling, filtration, post chlorination.

Ogongo Treatment Plant

Raw water abstracted from the Calueque Canal is abstracted from the raw water station
about 1 km away from the purification plant, where various chemicals, like flocculants and lime pre-chlorination for pre-disinfection, are added to the raw water before the water enters the flash mixer.

From flash mixer the water flows to the settling tanks where floc is formed and settles at the bottom of the tanks. Here floc is disludged through four disludging valves and transported to the sludge ponds about 1 km away from the purification plant, to be dumped and cleaned.

The clear water from the settling tanks enters the six sand filters, where the water seeps through sand filters and flow into the clear water reservoir. Post chlorination is added at this stage.

Eight clear water pumps abstract the clear water from the clear water reservoir into the distribution system which consists of the following distribution lines:
Ogongo – Oshakati
Ogongo – Okalongo
Ogongo – Okahao
Ogongo – West
Ogongo Agricultural College

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