THE STUDY OF NON-LINEAR ISOTHERMS FOR COBALT ADSORPTION

In this work, removal of Co (II) from aqueous solutions by Black Carbon (BC) derived from Rice Straw (RS) was studied. The parameters for adsorption process suchas pH, adsorbent dose and contact time were investigated. In order to evaluate equilibrium isotherms, The Langmuir,Freundlich, Sips and Redlich–Petersonisotherms were modeled with non-linear method.The adsorption of Co (II) on BC was best described by Sips model