Study the Comparison of Defluorination Capacity of processed Ores & Coal-based Sorbent through Column Technique

Rubina Sahin, Ashish Kumar Tiwari, Kavita Tapadia

Solid-sorbent, Removal, Defluorination, Column technique, Adsorption

Fluoride more than permissible limit (< 1.5 mg/l, WHO) in water cause health hazards to the human health. The removal of fluoride was attempted using natural ores such as, Dolomite, Limonite, or coal-based sorbent such as Lignite and Coke. Each material was set up in a column for a known volume and the defluorination capacities of these materials were studied with respect to time. According to the maximum defluorination capacity these materials were added proportionally to the vertical column. 10 mg/l of fluoride was passed through the column and the variation of fluoride removal for a known rate of flow was studied. Correlation analysis of defluorination capacity with time was done and an attempt has been made to classify them accordingly. At neutral pH defluorination efficiency is more in Dolomite as compared to other three sorbent.

https://dx.doi.org/10.31873/IJEAS.9.10.04