Abstract

Adsorption of Ni II ions from aqueous solution using natural Syrian zeolite has been studied Batch shaking adsorption experiments were performed in order to determined the effects of contact time pH and initial concentration on removal process The experimental equilibrium data were tested for the Langmuir and Freundlish isotherms It was determined that removal of Ni II ions was well fitted by pseudo-first order kinetic model The adsorption involves a film diffusion an intra-particle diffusion and a chemical ion-exchange between Na ions of adsorbent and the Ni2 ions The adsorption is endothermic and spontaneous process under studied conditions