A SURVEY ON FLUORIDE CONCENTRATION IN DRINKING WATER OF TIPPARTHY REVENUE SUB-DIVISION, NALGONDA DISTRICT, ANDHRA PRADESH, INDIA AND BATCH MODE DEFLUORIDATION WITH RENEWABLE RESOURCES

摘要

43 water samples belonging to 22 gram panchayats (villages) of Tipparthy revenue sub division Nalgonda district were chemically analyzed for determining fluoride ion concentrations. High fluoride containing regions were identified on the basis of fluoride levels of the water samples and also on the prevalence rate of dental and skeletal fluorosis of the study area. Fluoride maps, which distinguish the regions containing the water sources of deferent ranges of fluoride ion concentrations, were also prepared by isopleth’s technique, a statistical method. Water samples containing high fluoride levels were defluoridated with economically cheaper materials prepared from plant byproducts. These materials were successfully decreases the fluoride ion concentration to a permissible limit (0.5 to 1.5 mg/L) without disturbing drinking water quality standards.