Maryam Kazemian
Maryam Daghighi Asl

Removal of heavy metal cations vast water Industry and Mining takes place in different ways Cadmium is a heavy metal that is abundant in industrial wastewater. Remove cadmium fromaqueous solutions, research carried out by the various absorbents.The aim of this study was to investigate cadmium uptake by absorbing silica surface covered by arginine. The amino acid arginine, an amino group and a double bond due mainly to cadmium is effective adsorbent and accordingly(SiO2) is great potential for the removal of cadmium. First, silica sol-gel method for testing andsynthesis make it through the whole (IR) have confirmed To search for an effective absorbent surface (TGA) is used. After its uptake by (Cd) on the surface of the silica surface only look andabsorption by atomic absorption (icp) specified that , and then to optimize the absorption effects ofpH, the surface area of absorption , the absorption material nature Instant , contact time and initial concentration of Cd to consider . Finally, to study reaction kinetics, Langmuir adsorption isotherms , Freundlich, Dupynyn , Radushkuvych we review.