byPeter Bervoets via web
By Hugo Vreugdenhil
NAIVAWASS, in collaboration with VEI and the Nakuru Defluoridation Company Ltd. realised a HAP pilot installation in Naivasha, Kenya. The installation has two filters with HAP pellets that remove excess concentrations of natural occurring fluoride from the drinking water. The population of Naivasha and of a lot of other places in the rift valley, are suffering from these excess fluoride levels. It affects teeth, weakens or even skews bones and heavily affects the quality of life of millions of people. The installation will run until May to prove the effectiveness of the HAP fluoride removal. The average removal rate achieved so far is 93%. If the pilot keeps on performing successfully, NAIVAWASS together with VEI would like to propose a large-scale treatment plant. This plant should be able to produce 600.000 m3 water with less than 1 mg/l of fluoride. The operational costs of this plant are not expected to exceed the KES 10/m3 or €0,10 / m3.