APPLICATION OF RESPONSE SURFACE METHOD TO OPTIMIZE THE OPERATING PARAMETERS IN REMOVAL OF LEAD

The removal of lead by Tamarind fruit shell powder (Tamarinus Indica.L) using biosorption has been investigated. The optimum operating parameters like agitation time, biosorbent dosage, initial ion concentration and pH are estimated using batch process and validated by Response Surface Method. The maximum removal of lead is 83.5% at optimum conditions of agitation time 33.11 minutes, biosorbent dosage 0.99 gm, initial ion concentration 26.44 mg/l and pH 6.98 using RSM. The kinetic, equilibrium and thermodynamic are data calculated from experimental data. The kinetics data followed the pseudo second order kinetics. The adsorption isotherm models are used to study the equilibrium data. The biosorption of lead by Tamarind fruit shell powder followed the Freundlich isotherm model