Prospecting Low Fluoride Water for Drinking in Fluorotic Areas of Tanzania.

The Defluoridation Technology Project was called upon to survey existing water resources by three different institutions lying in fluorotic Tanzania: 1) The Ngongongare Secondary School. 2) The St Constantine International School and 3) The Minjingu Church Project. In case 1), due to low affordability, an open dug well was proposed. In case 2) a defluoridation system was installed and could be used to estimate essential design parameters, as Operation Period (1 Year), Removal Efficiency (93 %) and Removal Capacity (3-4 mg/g of Bone Char). In case 3) the water was deadly toxic because of high fluoride concentrations, but, fortunately, unpalatable due to high contents of Alkalinity/Salinity. The salinity renders the defluoridation process useless. A system of combined rain water harvesting and defluoridation of brought water sources was proposed. [ABSTRACT FROM AUTHOR]