Application of zeolite prepared from Egyptian kaolin for the removal of heavy metals: II. Isotherm models

Journal of Hazardous Materials
Hanan S IbrahimEman Z Hegazy

Abstract

In this study, the adsorption behavior of zeolites A and X, which are prepared from very cheap local Egyptian clay (kaolin), with respect to Cu(2+), Cd(+2), Cr(+2), Ni(+2) and Zn(2+) has been studied. The batch method has been employed, using metal solutions ranging from 100 to 400 mg/L. The distribution coefficients (K(d)) and adsorption percent were determined for the adsorption system as a function of sorbate concentration. In the uptake evaluation part of the study, adsorption ratios of metal cations on zeolites A and X match to Langmuir, Freundlich, and Dubinin-Kaganer-Radushkevich (DKR) adsorption isotherm data. Also, every cation exchange capacity for metals has been calculated. According to the equilibrium studies, the selectivity sequence can be given as Pb(2+)>Cd(2+)>Cu(2+)>Zn(2+)>Ni(2+). It was found that the uptake depend on hydrated ion diameter. This study may attract more interest due to the presence of large reservoirs of very cheap kaolin in Egypt from which both zeolite types were prepared.

References

May 3, 2003·Journal of Colloid and Interface Science·Vassilis J InglezakisHelen P Grigoropoulou
Nov 10, 2004·Journal of Colloid and Interface Science·E ErdemR Donat
Mar 4, 2005·Water Research·Roman Petrus, Jolanta K Warchoł
Nov 23, 2006·Journal of Hazardous Materials·Biswaranjan Manna, Uday Chand Ghosh
Dec 18, 2007·Journal of Hazardous Materials·Murari PrasadSona Saxena
Nov 11, 2008·Journal of Environmental Management·Su-Hsia Lin, Ruey-Shin Juang

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Citations

Jul 2, 2014·TheScientificWorldJournal·Mohamed E El-HefnawyAli I Ismail
May 28, 2015·International Journal of Biological Macromolecules·Nourelhoda A AbdelwahabHanan S Ibrahim
Jun 25, 2013·Journal of Hazardous Materials·Alireza Nezamzadeh-Ejhieh, Mehdi Kabiri-Samani
Mar 1, 2012·Water Environment Research : a Research Publication of the Water Environment Federation·Chiara PennesiFrancesca Beolchini
Dec 22, 2019·International Journal of Environmental Research and Public Health·Shihe LiXuan Zhang
Dec 31, 2019·Environmental Science and Pollution Research International·Qilong GeKaiqing Feng
Jan 29, 2021·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Mariana B GoncalvesMendelssolm K de Pietre
Apr 5, 2021·Journal of Environmental Radioactivity·Jaeeun KangWooyong Um

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