Removal of lead and zinc ions from aqueous solution using Amasya zeolites from Turkey
by Nevzat Beyazit, Ibrahim Peker, Osman Nuri Ergun
International Journal of Environment and Pollution (IJEP), Vol. 19, No. 2, 2003

Abstract: This paper deals with the removal of Pb²⁺ and Zn²⁺ ions from aqueous solutions using zeolitic minerals containing 45 wt.% clinoptilolite and 35 wt.% mordenite. The effects of particle size, zeolite/solution ratio, stirring time, and metal ion concentration on Pb²⁺ and Zn²⁺ removal were examined. The study showed that at at low metal concentrations the zeolite samples exhibited optimum efficiency at metal concentration around 22 mg/l for both Pb²⁺ and Zn²⁺, and Pb²⁺ ions were much more preferred by zeolites. More than 98% of the removal was achieved in the first five minutes for Pb²⁺, whereas the Zn²⁺ removal efficiency was around 90% for the same time. Pb²⁺ and Zn²⁺ adsorption capacities related to Langmuir isotherms were found to be 34.48 and 19.49 mg/g, respectively. In summary, it can be concluded that metal ions such as Pb²⁺ and Zn²⁺ can be removed with approximately 100% efficiency from aqueous solutions and wastewater containing similar ions using Amasya zeolites.

Online publication date: Mon, 22-Dec-2003

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