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US 6,197,199 B1Granted
Use of protein-polysaccharide complex in removal of contaminants
OwnerBlaise McArdleinventor
Life of this patent
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Abstract
The present invention relates to a method of using a protein-polysaccharide complex composition as an adsorbent and filtering aid for in the processing of fluids or solids to absorb or decompose a variety of separable components including halogenated organic compounds such as PCBs and dioxins.
Claims14
A process for treating a liquid to remove a contaminant contained in the liquid comprising:
- contacting a liquid containing a contaminant with a reagent comprising a protein-polysaccharide complex composition comprising between about 90% to 99.5% by weight of a water-soluble polysaccharide impregnated with between about 10% to 0.5% by weight of a water-insoluble protein to purify the liquid, and separating the resultant contaminant and reagent from the liquid.
A method of separating metals from fluid streams containing metals comprising the steps of:
- contacting a fluid containing a metal or a metal salt with a protein-polysaccharide complex composition comprising between about 90% to 99.5% by weight of a water-soluble polysaccharide impregnated with between about 10% to 0.5% by weight of a substantially water-insoluble protein to absorb the metal or metal salt in said protein-polysaccharide complex composition, and
- separating the fluid and the protein-polysaccharide complex composition.
A method for the decomposition of halogenated organic compounds contained in a contaminated medium, comprising:
- (a) adding a protein-polysaccharide complex composition comprising between about 90% to 99.5% by weight of a water-soluble polysaccharide impregnated with between about 10% to 0.5% by weight of a substantially water-insoluble protein to a contaminated medium containing halogenated organic compounds;
- and contacting said protein-polysaccharide complex composition with the contaminated medium for a time sufficient to effect decomposition of the halogenated organic compounds.
Dependencies are inferred from the claim text.