Chlorine dioxide in Sterilization and disinfection

- Aug 07, 2020-

⑴ Disinfection of drinking water Chlorine dioxide is a very effective water purifier for the purification of drinking water, including good deodorization and decolorization capabilities, high efficiency sterilization and virus killing capabilities at low concentrations. Chlorine dioxide is used for water disinfection. When its concentration is 0.5-1mg/L, it can kill 99% of the bacteria in the water within 1 minute. The sterilization effect is 10 times that of chlorine and twice that of sodium hypochlorite. It has the ability to inhibit viruses. It is also 3 times higher than chlorine and 1.9 times higher than ozone. Chlorine dioxide also has rapid sterilization, a wide pH range (6-10), is not affected by water hardness and salt content, can maintain a long-term sterilization effect, and can efficiently eliminate protozoa, spores, molds, algae and Biofilms do not generate chlorophenols and trihalomethanes, and can oxidize many organic compounds, thereby reducing water toxicity and mutagenic properties.

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(2) Sterilizing the air. The air contains a large number of pathogenic bacteria, especially in the catering industry and the production workshop of food processing plants. The types and numbers of microorganisms in the air are large and complex. The ultraviolet sterilization method is generally used for these microorganisms, but due to indoor The relative humidity of the air is high, and the UV sterilization effect is not ideal. The chlorine dioxide preparation has strong sterilization ability, quickly decomposes without residue, and is very suitable for air spray sterilization and disinfection of relevant places in the catering industry and food processing industry. In addition, the spring and autumn seasons are frequent seasons for infectious diseases such as colds and bronchitis. Chlorine dioxide can be used to disinfect the environment, which can not only kill pathogenic microorganisms, but also eliminate odors and refresh the air. Therefore, chlorine dioxide is an ideal environmental disinfectant to prevent SARS.

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⑶ Disinfection of kitchen utensils, food machinery and equipment If kitchen utensils, food machinery and equipment, containers, etc. are not thoroughly disinfected, it is easy to contaminate food and cause food poisoning. Use chlorine dioxide to disinfect kitchen utensils, food machinery and equipment, containers, etc., which can kill E. coli, golden grape balls, etc.


⑷In the medical field, chlorine dioxide is used for oral gargle, which can effectively control gingivitis, dental plaque and bad breath. It can be used as a bath or rinse to prevent many diseases, etc. In the flood relief in 1998, flood fighters used chlorine dioxide disinfectant to wash their faces, take a bath, wipe their bodies, soak their feet, and soak their underwear, and their magical effects were once again verified. Practice has proved that chlorine dioxide has good effects on the prevention and treatment of pink eye, skin diseases and deodorization.

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⑸ Disinfection of aquaculture and livestock and poultry breeding: Chlorine dioxide aquaculture agents can be used to treat bacterial and viral diseases such as fish, shrimp, crabs, soft-shelled turtles, and frogs. For carp, grass, eel, tilapia, etc. red skin, rotten gills, hemorrhagic septicaemia, enteritis, tail rotten, saprolegnia, etc.; shrimp virus disease, black gill, white hair disease, printing disease, etc.; crab Gill rotten, edema, enteritis, landing syndrome, tremor, etc.; turtle skin disease, red and white floor disease, hemorrhage, perforation disease, etc.; frog skin disease, eye disease and other diseases have unique effects and can remove peculiar smell in water , Improve water quality and increase the oxygen content of the water body.

Sterilization effect: Chlorine dioxide is a broad-spectrum and highly effective sterilant. Many foreign research results show that chlorine dioxide can kill many pathogenic bacteria such as Escherichia coli and Staphylococcus aureus at a very low concentration (0.1ppm). Even under the interference of organic matter, when the concentration is tens of ppm, it can completely kill all microorganisms such as bacterial propagules, hepatitis viruses, phages and bacterial spores.

Chlorine dioxide disinfectant application history

The use of chemical disinfectants for disinfection by humans began in the early 19th century. After the first generation of chemical disinfectant bleaching powder came out in 1820, people used it mainly for drinking water disinfection and the treatment of infected wounds, and achieved good results, opening up the first milestone in chemical disinfection. Since then, people have successively discovered the second generation disinfectant ethylene oxide and the third generation disinfectant glutaraldehyde. A new generation of high-efficiency chemical disinfectant has finally come out in the endless calls, this is the chlorine dioxide called the fourth generation of disinfectant.