Novel use of riche husk Carbon (A Natural Silica-Carbon Matrix) For Fluoride Removal From Aqueous Solution

Abstract

Utilization of one waste material to control pollution caused by another is of high significance in the remediation of environmental problems. Rice husk, an abundantly available agricultural waste, can be used to as a low cost adsorbent for removal of fluoride from contaminated water.  Rice Husk Carbon (RHC) was prepared at temperature 500 ⁰C and characterized by SEM, XRD and FTIR study. Experiment of fluoride removal was studied by column adsorption experiment with respect to flow rate, pH, initial concentration and column depth were carried out.RHC exhibited almost scavenging capacity at various bed depth with a flow rate 4.37 ml/min. Maximum adsorption capacity of RHC was recorded 0.429 mg/g. The adsorption studies were simulated using Thomas and Bed depth service time model. Both the models consistently predict its characteristic parameters and describe the breakthrough profiles in the whole range of sorption process.