Lutfor, Mohammad Rahman, S. Silong, M.Z.A. Rahman, M.B. Ahmad, M.J. Haron, W.M.Z. Wan Yunus. EXTRACTION OF HEAVY METALS FROM WASTE WATER BY POLYMERIC CHELATING RESINS
Department of Chemistry, Faculty of Science and Environmental Studies, Serdang, Selangor, 43400, Malaysia (Lutrinl@hotmail.com)
The future role of chelating polymer resins in water treatment for human consumption, industrial uses or environmental protection is of prime importance and, in spite of considerable efforts to develop new chelating resins. Consequently, poly(hydroxamic acid)/poly(amidoime)chelating resin has been prepared from poly(methylacrylate-copolyacrylonirile) grafted sago starch, and chelating behavior of this resin towards waste water are performed. Physical and chemical properties of the resin such as water regain, ion-exchange capacity were measured. The rate of exchange of metal ion was very fast (half-life 5 min). The resins were especially useful for the extraction of copper, iron, chromium, nickel, cobalt, zinc, cadmium, arsenic, cerium, dysprosium, lanthanum and uranium except alkali metal ions. Trace amounts of element were quantitatively retained on the resin columns at neutral pH and easily recovered by elution with 2M HCl. This resin is efficient for extraction of heavier metal ions from wastewater.