Method of preparing, storing, transporting and testing chlorine dioxide solutions
AssigneesAllison H. Sampson, Richard L. Sampson
InventorsAllison H. Sampson, Richard L. Sampson, George Dimotsis
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Abstract
Chlorine dioxide solutions are stabilized and prepared for storage, transportation, and testing. Each solution is separated into two samples. Chlorine dioxide is removed from one sample and then each sample is stabilized and prepared such that each sample contains only oxidized and/or reduced forms of chlorine dioxide. The stable samples may be stored, transported, and tested for chlorine dioxide. The samples are tested for the oxidized and/or reduced forms of chlorine dioxide by known methods, and mass balance equations are used to determine the concentration of chlorine dioxide in the original sample before stabilization and preparation.
Claims30
A method for preparing and stabilizing chlorine dioxide samples for transport, storage, or testing, which comprises taking at least two samples, Sample 1 and Sample 2, from a chlorine dioxide solution to be tested, the samples then being processed as follows:
- stripping the chlorine dioxide from Sample 1, and
- raising the pH of Sample 2 so as to completely convert the chlorine dioxide in solution to other stable chlorine species.
A method for determining the concentration of chlorine dioxide in a chlorine dioxide solution in a facility comprising the following steps:
- (1) isolating two samples, Sample 1 and Sample 2, from the chlorine dioxide solution;
- (2) treating Sample 1 by stripping the chlorine dioxide from it;
- (3) treating Sample 2 by raising its pH sufficiently so as to completely convert the chlorine dioxide in solution to other stable chlorine species;
- (4) transporting the treated Samples 1 and 2 to a testing site;
- (5) testing Samples 1 and 3 for the contraction of chlorine-containing species therein;
- and
- (6) using the information obtained in step (5) to calculate the concentration of chlorine dioxide in the chlorine dioxide solution.
A method for preparing chlorine dioxide samples for transport, storage, or testing, such that at least two samples, Sample 1 and Sample 2 are taken, and the samples are processed as follows:
- stripping the chlorine dioxide from Sample 1, and chemically reducing or oxidizing the chlorine dioxide of sample 2 so as to completely convert the chlorine dioxide in solution to other stable chlorine species.
A method for determining the concentration of chlorine dioxide in a chlorine dioxide solution comprising the following steps:
- (1) isolating two samples, Sample 1 and Sample 2, from the chlorine dioxide solution;
- (2) stripping the chlorine dioxide from Sample 1;
- (3) completely converting the chlorine dioxide in Sample 2 to other stable chlorine species;
- (4) separately determining the concentration of the chlorine containing species in each of Samples 1 and 2;
- and
- (5) calculating the concentration of chlorine dioxide in said chlorine dioxide solution based upon the information obtained in step (4).
Dependencies are inferred from the claim text.