Methods of improving chitosan for water purification
AssigneeWater Security Corporation
InventorsSivarooban Theivendran, San Hein, Marian Pettibone, James J. Kubinec
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Abstract
Methods for preparing a chitosan-based material for use in a halogen water treatment system are described. Treating chitosan or chitin with a compound selected from the group consisting of an acid, a base, a mild halogenating solution and combinations thereof provides a chitosan-based material that displays reduced leakage of halide ion. Water treatment systems and methods for treating water comprising at least one contaminant are also described.
Claims21
A method for producing a water filtration/purification material comprising a chitosan-based product, the method comprising:
- contacting chitosan or chitin with a compound selected from the group consisting of an acid, a base, a mild halogenating solution, and combinations of any thereof to provide a chitosan-based product,
- wherein the chitosan-based material displays reduced conversion of halogen (X2) to halide ion (X−) compared to a chitosan or chitin that has not been contacted with an acid, a base, and/or a mild halogenating solution.
A method for manufacturing a water treatment system comprising:
- contacting chitosan or chitin with a compound selected from the group consisting of an acid, a base, a mild halogenating solution, and combinations of any thereof to provide a chitosan-based product, wherein the chitosan-based material displays reduced conversion of halogen (X2) to halide ion (X−) compared to a chitosan or chitin that has not been contacted with an acid, a base, and/or a mild halogenating solution;
- and
- positioning the chitosan-based material intermediate a halogen release system and an outlet,
- wherein the halogen release system, the chitosan-based material and the outlet are in fluid communication.
Dependencies are inferred from the claim text.