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Swimming Pool Water Disinfectants

Due to the large number of people in contact with swimming pool water, the pool water will be contaminated with bacteria carried by the swimmers themselves. Therefore, the water in the swimming pool will contain various types of bacteria. If the pool water is not sanitary, it will cause discomfort and possibly disease. In order to ensure the safety of swimming pool water quality and protect the health of swimmers, it is essential to equip the swimming pool with necessary water disinfection and adopt necessary swimming pool water disinfectants.

The common used swimming pool water disinfectants mainly include bleaching powder, sodium hypochlorite, liquid chlorine, trichloroisocyanuric acid (TCCA), and sodium dichloroisocyanurate dihydrate(SDIC).

Bleaching powder. It is a mixture of sodium hypochlorite and calcium chloride and calcium hydroxide, usually granules or powder. It has an obvious pungent odor, and is easy to produce chemical reactions, and has strong instability. Adding bleaching powder to swimming pool water has the effect of sterilization and bleaching.

Sodium hypochlorite. It is a more dangerous strong oxidant, generally yellowish green or colorless liquid, and has a strong sterilization effect.

Trichloroisocyanuric acid. Its killing effect is the same as that of hypochlorite and chlorine. Its biocidal effect is the same as that of hypochlorite and chlorine, and it is also an oxidizing biocide with high-efficiency, broad-spectrum and safer disinfection effects. It can kill bacteria, viruses, fungi, spores, etc., Can also kill coccidia oocysts to a certain extent. However, TCCA 90 is a dangerous chemical, and has high requirements for storage and transportation, and the chlorine smell is strong. During the use and operation, workers are required to wear professional masks and glasses.

Sodium dichloroisocyanurate. Used as a disinfectant, it can be used for drinking water disinfection, preventive disinfection and environmental disinfection in various places. This kind of disinfectant has relatively mild smell, high disinfection effect, stable performance, and harmless to the human body, so it is becoming more and more popular in the market.


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