POLY 522-Polymeric chelating resin for removal of toxic metals from various water sources and electroplating liquors

Rahman, Md Lutfor and Jahimin Asik @ Abd. Rashid (2008) POLY 522-Polymeric chelating resin for removal of toxic metals from various water sources and electroplating liquors. In: 235th American-Chemical-Society National Meeting, 06-10th April 2008, New Orleans, LA.

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The future role of polymeric chelating resins in water treatment for human consumption and industrial uses and as well as environmental protection is of prime importance. Thus, a polymeric chelating ion exchange resin containing hydroxamic acid and amidoxime functional groups were prepared from poly(methyl acrylate-co-acrylonitrile) grafted sago starch (PMA-co-PAN). Therefore, PMA-co-PAN grafted sago starch was prepared by free radical initiating process and the ester and nitrile groups of the PMA-co-PAN were converted into the hydroxamic acid and amidoxime groups with hydroxylamine in alkaline solution. The chelating behavior of the prepared resin towards a series of metal ions was investigated and the binding capacities of some transition metal ions were high as copper, iron, zinc, chromium and nickel were 3.60, 2.83, 2.54, 2.38 and 2.31 mmol/g respectively at pH 6. The rate of exchange of copper ion was very fast (t1/2< 6 min). Several liquors obtained from electroplating plants, which containing Cr, Ni and Zn were used to the column packet with the prepared resin and it was found that the metals recovery were highly efficient i.e. about 96% metals could removed at the range of 3.0 ppm metals containing electroplating liquors. Therefore, the proposed polymeric chelating ligands could be used to the removal of several metal ions from industrial waste water and as well as effective ligands for environment protection.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Uncontrolled Keywords: Polymeric chelating resins, Water treatment, Electroplating liquors, Toxic metals, Water
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD1-1066 Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes > TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion
Q Science > QD Chemistry > QD1-999 Chemistry > QD71-142 Analytical chemistry
Divisions: SCHOOL > School of Science and Technology
Depositing User: ADMIN ADMIN
Date Deposited: 17 Nov 2011 14:29
Last Modified: 30 Dec 2014 14:40
URI: http://eprints.ums.edu.my/id/eprint/1272

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