AN IMPROVED METHOD OF
For human consumption,
fluoride concentration in water should be between 0.8 ppm to 1.5 ppm. Potable water having fluoride less than
0.8 ppm is not good for tooth, bone etc. Again, if the fluoride concentration is more than 1.5 ppm, it causes a disease called "fluorosis", which is a major problem in many villages of our country.
As per the improved patented method developed in Bhabha Atomic Research Centre, the process consists of Calcium (Ca+2) treatment of effluent followed by complexing the fluoride ion and pH control. This method has been very effective to reduce the fluoride concentration in both acidic and alkaline effluents, down to 1.5 ppm. The process as such is relatively faster also. The solid waste, primarily CaF2 generated out of this process, can either be dried and used/sold or disposed off as solid waste depending upon the specific industrial activity.
The standard chemical processing equipments such as treatment tanks with agitator, settling tanks, pumps , filter presses, pH meter, flow meters and fluoride specific ion meter would be required.
For details contact :
Head, Technology Transfer & Collaboration Division,
BHABHA ATOMIC RESEARCH CENTRE,
TROMBAY, MUMBAI - 400 085
Tel : 091-022-25505337/25593897
Fax : 091-022-25505151
Email : email@example.com