Method for removing metal ions from water
AssigneeImam Abdulrahman Bin Faisal University
InventorAbir Said Ibrahim ABDEL-NABY
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Abstract
A method of removing a metal ion from water is disclosed. The method includes treating the water with a nanocomposite to absorb the metal ion with the nanocomposite, forming a polymer-metal ion composite and removing the polymer-metal ion composite from the water. The nanocomposite includes aluminum oxide dispersed in a matrix of an uncrosslinked graft copolymer that includes a chitosan backbone and side chains of poly(itaconic acid) grafted to the chitosan backbone. The chitosan backbone has a plurality of amino groups that are acetylated by itaconic acid.
Claims15
A water treatment method for removing a metal ion from water, comprising:
- adjusting the pH of the water to from 6 to 7;
- treating the water with a nanocomposite to absorb the metal ion with the nanocomposite and form a polymer-metal ion composite, wherein the metal ion is one or more selected from the group consisting of Cu2+, Zn2+, Na+ and K+;
- wherein the nanocomposite is in the form of particles comprising aluminum oxide dispersed in a matrix of an uncrosslinked graft copolymer that includes a chitosan backbone and side chains of poly(itaconic acid) grafted to the chitosan backbone, the chitosan backbone having a plurality of amino groups that are acetylated by itaconic acid;
- and
- removing the polymer-metal ion composite from the water.
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Dependencies are inferred from the claim text.