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Special Reminder on the Use of a Certain Oxidative Biocide in Cooling Tower Water Treatment
Solid oxidizing biocide shown in paper tube container, chemical name: Bromochloro-5,5-dimethylimidazolidine-2,4-dione, commonly known as bromochlorohydantoin.
After conducting a recent on-site investigation into a chemical corrosion incident that resulted in severe corrosion of the steel frame and perforation of copper pipes in a closed cooling tower, we found that the customer's cooling tower used this type of solid oxidizing biocide. After searching online, I obtained an article titled "Experimental Observation" for the drug. The comparison of the corrosion phenomenon with the experimental phenomena and conclusions in the paper is basically consistent. Moreover, the recommended dosage of bromochlorohydantoin for this product is very close to the experimental dosage shown in the paper, which is 1000-1200mg/l. If we consider the concentration factor of the cooling tower water, the concentration of corrosive substances in the cooling tower water tray will be higher.
Bromochlorohydantoin has little corrosion on stainless steel materials, but for various cooling towers with carbon steel skeletons and copper heat exchangers, the use of Bromochlorohydantoin fungicides requires high caution. The following are screenshots of some paragraphs in the paper for reference only!
