Composition and method for enhanced sanitation and oxidation of aqueous systems
AssigneeTruox, Inc.
InventorRoy W. Martin
Life of this patent
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Abstract
This invention relates to a method for enhanced sanitation and oxidation of aqueous solutions at aquatic facilities. The method provides a means for the in-situ generation of chlorine dioxide from dilute solutions of chlorite anions at near neutral pH, and enhanced inactivation rates of microbiological organisms including cryptosporidium.
Claims12
A method for enhanced inactivation of microbiological organisms including cryptosporidium in an aqueous solution of an aquatic facility, the method comprising:
- sustaining a free bromine concentration of 1 ppm to 20 ppm as Br2;
- sustaining in said aqueous solution a chlorite anion concentration of no more than about 100 ppm to sustain a chlorine dioxide concentration from 20 ppb to 150 ppb as ClO2;
- sustaining a pH between 7.0 to 8.0;
- adding a sulfate free radical precursor at an average daily rate of 1 ppb to 20 ppb per minute based on the volume of the said aqueous solution;
- sustaining an effective amount of active catalyst that converts the sulfate free radical precursor to a sulfate free radical;
- and
- wherein at least some portion of the chlorite anions and bromide anions resulting from the decomposition of chlorine dioxide and free bromine are regenerated in-situ to form chlorine dioxide and free bromine.
A method for enhanced inactivation of microbiological organisms including cryptosporidium in an aqueous solution of an aquatic facility, the method comprising:
- sustaining a sustaining a free bromine concentration of 1 ppm to 20 ppm as Br2;
- sustaining in said aqueous system a chlorite anion concentration of no more than about 100 ppm to sustain a chlorine dioxide concentration from 20 ppb to 150 ppb as ClO2;
- sustaining a pH between 7.0 to 8.0;
- adding peroxymonosulfate at an average daily rate of 1 ppb to 20 ppb per minute based on the volume of the aqueous solution;
- and
- wherein at least some portion of the chlorite anions and bromide anions resulting from the decomposition of chlorine dioxide and free bromine are regenerated in-situ to form chlorine dioxide and free bromine.
Dependencies are inferred from the claim text.