Field Testing of a Magnesium Oxide-Lime-Calcium Chloride-Hydrochloric Acid Based defluoridation filter (Part2)

Field trials of a magnesium oxide-lime-calcium chloride-hydrochloric acid basedfluoride filter has been carried out over a period of ten days in the house of Mr. BhavarSingh, in a fluorosis affected village in India. The raw and filtered water was analyzed tocheck the working of the filter. A reduction of 65% of fluoride, 75% reduction of HCO3-,72% reduction of total alkalinity, 169% increase in Cl- and 20% increase in TDS has beenobserved in the filtered water as compared to the raw water.