Methods for inactivating mosquito larvae using aqueous chlorine dioxide treatment solutions
AssigneeSabre Intellectual Property Holdings LLC
InventorsJOHN Y. MASON, JULIAN N. ROSENBERG
Life of this patent
Estimating the term…
Abstract
Provided herein are methods of inactivating a mosquito larva, the methods comprising exposing the larva to an aqueous chlorine dioxide treatment solution for a minimum contact time, wherein the aqueous chlorine dioxide treatment solution comprises a residual chlorine dioxide concentration at the conclusion of the minimum contact time. Also provided herein are methods of treating a body of water containing a mosquito larva. The methods are effective to inactivate the larva, thereby preventing growth of mosquito populations and the related spread of mosquito-borne disease.
Claims20
1-57. (canceled)
A method of treating a body of water containing a mosquito larva, the method comprising
- (a) determining an estimated demand of a body of water containing a mosquito larva by assessing demand in a sample taken from the body of water,
- (b) determining, based on the estimated demand and a target residual chlorine dioxide concentration, a dose of chlorine dioxide to be established in an aqueous chlorine dioxide treatment solution to be formed by adding a concentrated liquid chlorine dioxide solution to the body of water, wherein determining the dose comprises summing the estimated demand with a target residual chlorine dioxide concentration of at least 5 ppm, and
- (c) adding a volume of a concentrated liquid chlorine dioxide solution comprising at least 500 ppm chlorine dioxide into the body of water, thereby forming the aqueous chlorine dioxide treatment solution, wherein said volume is calculated to initially provide said dose in the aqueous chlorine dioxide treatment solution.
59-63. (canceled)
A method of treating a body of water containing a mosquito larva, the method comprising
- (a) introducing an amount of chlorine dioxide into a body of water, thereby forming an aqueous chlorine dioxide treatment solution, wherein said amount is calculated to initially provide a dose of chlorine dioxide in the aqueous chlorine dioxide treatment solution, wherein the dose is calculated by summing the estimated demand of the body of water with a target residual chlorine dioxide concentration of at least 5 ppm and
- (b) exposing the larva to the aqueous chlorine dioxide treatment solution for a minimum contact time of 5 minutes, wherein the aqueous chlorine dioxide treatment solution comprises a residual chlorine dioxide concentration of at least 5 ppm at the conclusion of the minimum contact time.
65-69. (canceled)
A method of inactivating at least 90% of a population of mosquito larvae within 10 minutes, the method comprising exposing the population of mosquito larvae to an aqueous chlorine dioxide treatment solution for a minimum contact time of 10 minutes, wherein the aqueous chlorine dioxide treatment solution comprises a residual chlorine dioxide concentration of 5 ppm to 50 ppm at the conclusion of the minimum contact time.
Dependencies are inferred from the claim text.