KINETIC STUDIES OF ADSORPTION PROCESS OF CHROMIUM IONS FROM AQUEOUS SOLUTION.
- Department of Environmental Studies, Panjab University, Chandigarh.
- Dr. S.S.B.U.I.C.E.T., Panjab University, Chandigarh.
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The adsorption efficiency of granular activated carbon was investigated for removal of Cr(VI) ions in a lab scale fluidised bed reactor. The effect of various parameters like pH, contact time and initial metal ion concentration on adsorption process were investigated. More adsorption was observed at lower pH and optimum pH was found to be 3.0.The equilibrium time was observed at 420 min. With the increase in initial Cr(VI) ion concentration, the percentage adsorption decreases while the adsorption capacity (qe) increases. Maximum adsorption of 96.02 % and 63.28 % was found at concentration of 10 mg/L and 50 mg/L respectively. The kinetic study was performed using pseudo-first and pseudo-second order kinetic model. The process of adsorption of Cr(VI) ions was found to follow pseudo-second order kinetic model.
[Dimple Lakherwal, V. K. Rattan and H. P. Singh. (2016); KINETIC STUDIES OF ADSORPTION PROCESS OF CHROMIUM IONS FROM AQUEOUS SOLUTION. Int. J. of Adv. Res. 4 (Oct). 545-550] (ISSN 2320-5407). www.journalijar.com
