Experimental Study of the Synthesized Mordenite Zeolite for Simultaneous Reduction of Lead, Zinc and Cadmium ions

Water contaminates are usually reduced by various adsorbents such as carbon active, fly ash, metal organic frame work (MOF) and zeolites [1,2]. This research was shown the simultaneous absorption of lead, zinc and cadmium ions by mordenite zeolite as an adsorbent. The zeolite absorbent was synthesized under solvothermal conditions (Fig. 1). The initial concentration of heavy metals solution was 50 mg/l that the efficiency of adsorption for lead, zinc and cadmium was 95.780, 35.819 and 47.978, respectively. In order to evaluate the results of the absorption process, Langmuir and Freundlich adsorption isotherms were investigated. The correlation coefficients confirmed that adsorption on mordenite zeolite was more compatible with Langmuir isotherm. Also the first and second order models were studied to determine kinetics of the adsorption metals. The results indicated that the mordenite is a useful absorbent for simultaneous removal of lead, zinc and cadmium ions. Finally, it was found that this compound has the most selectivity for lead ion