Fluoride is a vital constituent for humans; it can be either useful or harmful to human health depending on the level of it in drinking water. Fluoride concentration levels (1–1.5 mg/L) is essential for human health but the concentrations in the range of 1.5–4 mg/L and 4–10 mg/L result in dental fluorosis and skeletal fluorosis respectively.

In this study, the removal of fluoride on Rice Husk and Rice Husk Carbon was studied by batch technique to obtain the equilibrium data and rate of adsorption. Effect of various parameters such as temperature, pH, adsorbent dose, concentration of fluoride, agitation time and rate have been investigated.

 The results showed that pH has a significant effect on fluoride adsorption.  It was reveled that with increasing in adsorbent dose, fluoride removal was increased. Agitation rate and agitation time were also important variables in this study.  Removal efficiency was decreased with increase in initial fluoride concentration in constant condition.

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