الفهرس 
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Abstract
Recently, adsorption techniques using composite are preferred due to their high efficiency, easy handling, availability of different adsorbents reusability and the cost effectiveness to absorb heavy metal ions from aqueous solutions.
Thesis consists of four main chapters:
The first chapter is the introduction. It explains the water pollution and its sources. In addition, it contains a literature survey about most modern techniques used to remove heavy metal ions from wastewater.
The second chapter is the materials and methods.
The third chapter is the results and discussion of Retention of copper, cadmium and lead from water by methyl methacrylate-Na-Y-Zeolite Composite.The prepared adsorbent was characterized via FTIR, SEM, and XRD. The Kinetic profiles were best fitted by the pseudo-second order rate equation, Weber and Morris model and Elovich equation. The distribution of Cu(II) and Cd(II) at equilibrium between the solid and the liquid is modeled by the Langmuir equation, while the distribution of Pb(II) at equilibrium did not fit any of the studied adsorption isotherms. The adsorption Cu(II) and Cd(II) is endothermic reaction accompanied with an increase in the degree of freedom of the system, while the adsorption of Pb(II) is exothermic reaction accompanied with a decrease in the degree of freedom of the system.
The fourth chapter is the results and discussion of Amidoximated Poly acrylonitrile-Na-Y-Zeolite Composite for Heavy Metal Retention from Aqueous Solutions were successfully prepared and characterized via FTIR, SEM, XRD, BET and TGA. The kinetic profiles were best fitted by the pseudo-second order rate equation. The distribution of Cu(II), Cd(II) and Pb(II) at equilibrium between the solid and the liquid is modeled by the Langmuir equation. The adsorption Cu(II) and Cd(II) is endothermic reaction, while the adsorption of Pb(II) is exothermic reaction. Ionic strength (concentration of NaCl) has a weaker effect on the uptake of the studied metal ions.