2026-05-11T18:21:00Z https://www.eurjchem.com/index.php/eurjchem/oai

oai:ojs.www.eurjchem.com:article/568 2012-03-31T06:42:45Z eurjchem:ART driver

Study on adsorption behavior and separation efficiency of naturally occurring clay for some elements by batch experiments Kandil, Abd El Hakim Taha Saad, Ebtssam Ahamed Aziz, Ayman Ahmed Abdel Aboelhasan, Amir Ezzat Adsorption Natural clay Separation factor Radioactive waste Batch experiments Thermodynamic parameters This paper describes the versatile nature of clay that was obtained from Suez Gulf, Suez city, Egypt, as a new low cost natural resource which is non toxic to ecosystem and highly effective adsorbent material. The properties of the natural clay and its significance in removing Th(IV) and Ce(IV) as a representative of tetravalent actinides and lanthanides, respectively, La(III) as a representative of trivalent lanthanides as well as homologues of americium and Sr(II) as one of the fission products, in aqueous solutions have been studied, in order to consider its application for nuclear waste treatment. Batch experiments have been carried out to determine the effect of various factors such as initial metal ion concentration, clay dose, pH, contact time, and temperature on the adsorption process. The results have dictated that, the adsorption efficiency of the natural clay was significantly high at pH = 4. Maximum metal ion uptake capacity of clay has been obtained from batch studies was 99.24, 98.21, 77.76 and 57.94% for Th(IV), Ce(IV), La(III) and Sr(II), respectively. The thermodynamic parameters (ΔHo, ΔSo and ΔGo) have been calculated from the temperature dependent adsorption isotherms. Furthermore, separation factors (α) have been calculated in order to separate these elements from each other at pH = 4. Atlanta Publishing House LLC 2012-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.eurjchem.com/index.php/eurjchem/article/view/568 10.5155/eurjchem.3.1.99-105.568 European Journal of Chemistry; Vol. 3 No. 1 (2012): March 2012; 99-105 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/568/PDF