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Slowly adding Trichloroisocyanuric Acid (TCCA) solid to the solution with stirring

According to certain embodiments, a slurry of the iodide loaded anion exchange resin in the aqueous solution of the iodide salt is treated with the molecular halogen source, such as by slowly adding Trichloroisocyanuric Acid (TCCA) solid to the solution with stirring. In certain embodiments, the reaction mixture is stirred at a temperature ranging form about 20° C. to about 40° C. for a time ranging from about 5 min to about 60 min, although one of skill in the art would understand that reaction time and temperature may vary due to concentration of the reactants.
If iodide concentration is higher than about 0.5 ppm, it is possible to add more Trichloroisocyanuric Acid (TCCA)/chlorine source and tumble for another 20 minute to ensure complete iodine loading. After iodine loading the resin is checked for iodide elution. If the Total Iodine (TI) concentration is lower than the iodine (I2) concentration, then the resin may be checked for the presence of chlorine. If there is any residual chlorine found, the resin may be saturated with excess iodide solution to react with excess chlorine. According to certain embodiments, the resulting resin will not have high levels of residual chlorine or iodide.
Observation the effect on disinfection of Trichloroisocyanuric Acid (TCCA) and bleaching solution for small waterworks water. Baiyun District of Guangzhou City Health and Epidemic Prevention Station (510,405) Jiangshu Jiang and JiHe Deng use different drinking water chlorination and different methods, the obtain sterilizing effect also differences.