The disinfection used in the swimming pool is mainly due to its strong oxidizing properties, which can kill bacteria. Its anti-viral effect is superior to the previously used liquid chlorine and is safer. However, the reason for the gradual elimination of sodium hypochlorite is mainly due to the following reasons: First, sodium hypochlorite is extremely unstable and difficult to store, and its available chlorine will decrease with environmental changes such as temperature, humidity, light and storage time. It will cause its effective chlorine to gradually decrease, because it decays extremely fast, can not be stored for a long time, and is corrosive, so it is very difficult to store and operate. Secondly, the equipment is very demanding, the equipment is difficult to maintain, and the pH of the swimming pool will rise a lot after use. The last reason is that free chlorine released by sodium hypochlorite can cause poisoning, which can cause skin diseases. After skin contact, local redness, itching, etc. appear. If you accidentally drink sodium hypochlorite solution, it will cause skin and mucous membrane corrosion, perforation of the esophagus or trachea, sore throat, abdominal pain and stomach vomiting, which will lead to blood pressure drop, paralysis and coma. Although the swimming pool is low in content, there are still many reactions and discomforts to people with allergies. For all of the above reasons, sodium hypochlorite slowly withdrew from rivers and lakes.
Its disinfection and sterilization effect is more and more extensive, stable, harmless to the human body, and easy to use: 1, can effectively kill a variety of bacteria, fungi, spores, mold, cholera. It has special effects on killing hepatitis A and hepatitis B virus, and has good disinfection effect on sexual viruses and HIV. 2 The effective chlorine content is as high as 90% and is very stable. The effective chlorine content of the product is reduced by less than 1% within one year. 3 It is harmless to the human body, has a small smell and is easy to use. The disinfection tablets of the trichlorine pool can be quickly dissolved and disinfected by simply spraying into the swimming pool. The price is also more expensive than the hypochloroisocyanuric acid.