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IJCT Vol.16(4) [July 2009] >


Title: Removal of fluoride from low TDS water using low grade coal
Authors: Borah, L
Dey, N C
Keywords: Defluoridation
Fluoride
Adsorption
Low grade coal
Fluorosis
Issue Date: Jul-2009
Publisher: CSIR
Abstract:  Defluoridation of ground water using low grade Assam coal as an adsorbent is studied by batch sorption experiments. Effect of the variables, like quantity of adsorbent, contact time, particle size of the adsorbent are examined to establish the optimum conditions. The results show that the low grade Assam coal, collected from Tirap colliery of the North Eastern coalfield, after pretreatment, can be used as an effective adsorbent in removing fluoride from ground water. The optimum conditions for the efficient removal of fluoride are observed to be (i) quantity of adsorbent = 1.25 g in 100 mL water, (ii) contact time = 60 min, (iii) particle size of adsorbent = —72 BSS or lower.
Page(s): 361-363
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.16(4) [July 2009]

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