Comparative Studies on the Absorptivity of Heavy Metals by the Different Zeolitic Materials Developed from Kankara Clay

Authors : Z.M Agbendeh, C.E. Gimba, K.I. Omoniyi, T.M. Yilleng.

Volume/Issue : Volume 4 - 2019, Issue 2 - February

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In this research, the comparative studies of removal of Cu2+ and Pb2+ ions by low-cost adsorbent such as Zeolites (A, Y and ZSM-5) has been studied. In order to achieve this, the XRD of the zeolites were investigated. The batch experiment employed however, determined the adsorbent dose, contact time, and pH. The impacts of adsorbent dose and contact time on the adsorption of heavy metals were determined from 0.025g- 0.4g and 5120 minutes respectively while the effects of the pH of the metal ion solutions on removal levels of metal ions by different zeolites used were done between 3.5 and 7.5. Subsequently, sorbent dose, equilibrium time and the optimum pH required for the removal of heavy metals by different zeolites were arrived at. These factors were found to increase with increase in the removal of heavy metals. Adsorption isotherms investigated found out that the experimental data fitted well to Langmuir isotherms. The results showed that Zeolites A, Y and ZSM-5 hold the potential to remove cationic heavy metals species from domestic waste water in the order Zeolites A > Y> ZSM-5.

Keywords : Adsorbent, Langmuir Isotherm, Wastewater, Cationic Heavy Metals.


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