Uses of natural zeolite in the removal of Pb2+ from contaminated water

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Published: Dec 8, 1997
DOI: https://doi.org/10.26850/1678-4618eqj.v22.1.1997.p15-22
Keywords:
Heavy metals, Ion exchange, Atomic absorption spectrometry

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Marlene Seijó Echevarría
University of Camagüey, Faculty of Chemical Engineering and Pharmacy, Camagüey, Cuba.
Ruben Del Tóro Déniz
University of Camagüey, Faculty of Chemical Engineering and Pharmacy, Camagüey, Cuba.
Eugenio Martinez Castellanos
University of Camagüey, Faculty of Chemical Engineering and Pharmacy, Camagüey, Cuba.
Gerard A. Sherbakov
University of Camagüey, Faculty of Chemical Engineering and Pharmacy, Camagüey, Cuba.
Juan Jose Rodriguez Moya
University of Camagüey, Faculty of Chemical Engineering and Pharmacy, Camagüey, Cuba.

Abstract

In this paper, we carry out a study on the process of sorption of lead  in  polluted  waters  using natural zeolites, with the objective of analyzing their behavior in the purification of water.Experiments are carried out under static and dynamic conditions to determine the influence of other metal ions, such as: Ca (II), Mg (II), K (I) and Na (I), on this process. We demonstrate that the affinity of Pb (II) with regard to zeolite is higher than that of the ions mentioned above. It allows us to use this material in the capture of lead in residual waters. A lineal model of regression was obtained using a computer program called Eureka which relates the capacity of interchange of zeolite with respect to the concentration of the metal ions present in waters. We also studied the selectivity of zeolite in the process of sorption of Pb (II) compared with other heavy metals like Zn (II) and Cd (II).The results achieved in both cases increase the expectancy about the usage of zeolite as a low cost material for purifing waters.

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How to Cite
Seijó Echevarría, M., Del Tóro Déniz, R., Martinez Castellanos, E., A. Sherbakov, G., & Rodriguez Moya, J. J. (1997). Uses of natural zeolite in the removal of Pb2+ from contaminated water. Eclética Química, 22(1), 15–22. https://doi.org/10.26850/1678-4618eqj.v22.1.1997.p15-22
Issue
Vol. 22 No. 1 (1997): Eclética Química
Section
Original articles
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