Comparative Analysis on Treatment of Fluoride Containing Solution Using Novel Activated Carbon Prepared from Lemon Shell and Wheat Bran:Batch and Column Studies

The present study focused on de-fluoridation of waste water using thermally activated bio-sorbents prepared from Lemon Shell [LS] and Wheat Bran [WB].Adsorption efficiency of the synthesized activated carbon was analyzed using batch and column study.Batch studies using both the adsorbent were carried out at different experimental condition to achieve the optimum condition for removal of fluoride present in water.The fluoride uptake capacity of the adsorbent was fitted to Langmuir and Freundlich isotherm model and it was observed that Langmuir model can better represent the experimental results.The Thomas model and the BDST model were used for continuous column studied and it was observed that both model can represented the experimental results.The optimum dose, contact time and temperature were found to be 1.0 g/100 mL,70 min, 343 K respectively for lemon shell activated carbon and 2.0 g/100 mL, 60 min,343 K respectively for wheat bran activated carbon.