Document Details

Document Type : Article In Journal 
Document Title :
Application of zeolite prepared from Egyptian kaolin for the removal of heavy metals: II. Isotherm models
Application of zeolite prepared from Egyptian kaolin for the removal of heavy metals: II. Isotherm models
 
Subject : Chemistry 
Document Language : English 
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 Cu2+, Cd+2, Cr+2, Ni+2 and Zn2+ has been studied. The batch method has been employed, using metal solutions ranging from 100 to 400mg/L. The distribution coefficients (Kd) 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 Pb2+>Cd2+>Cu2+>Zn2+>Ni2+. 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. 
ISSN : 0304-3894 
Journal Name : Journal of Hazardous Materials 
Volume : 182 
Issue Number : 1 
Publishing Year : 1431 AH
2010 AD 
Article Type : Article 
Added Date : Saturday, October 22, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Hanan S IbrahimIbrahim, Hanan SResearcherDoctorate 
Tarek S JamilJamil, Tarek SResearcher omaytarek73@yahoo.com
إيمان زكريا حجازيHegazy, Eman ZResearcherDoctorateehegazy77@yahoo.com

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