CHEMICALLY MODIFIED CHITOSAN FOR FLUORIDE REMOVALMEENA CHAKRABORTY, MADHURIMA PANDEY AND PIYUSH KANT PANDEY
Ground water from certain parts of India contains fluoride in much higher concentration. When drinking water contains excess fluoride it causes health hazard to human beings. Adsorption is the best economic method to reduce the concentration of fluoride. In present investigation an attempt for removal of fluoride was made by using chitosan Barium adsorbent. The effects of various physico-chemical parameters such as pH, adsorbent dose, initial fluoride concentration and contact time on adsorption of fluoride were studied. It was observed that the uptake of fluoride was maximum at pH 10 for Chitosan-Barium compound. The maximum rate of adsorption was attained within 3 hours. So this compound is helpful in defluoridation.
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