REMOVAL OF CADMIUM CD (II) AND SILVER AG (I) FROM AQUEOUS SOLUTIONS BY NANO ACTIVATED ALUMINA PART II: CONTINUOUS FLOW EXPERIMENTS

The extent of removal of heavy metal ions (cadmium and silver) in single and binary system by adsorption on alumina has been investigated. Adsorption experiments were performed in continues flow technique (fixed bed) from synthetic solutions using alumina as adsorbent. Several experimental parameters that affect the extent of adsorption of the metal ions of interest have been investigated such as adsorbent bed depth and concentration of the adsorbate with different contact time. The percent of removal efficiency was also been studied. pH of the system used equal =6.5, temperature =25ºC. This work proposes a cost-effective method for the efficient removal of Cd (II) and Ag (I) from aqueous solutions.