What is ozone
Ozone is an allotrope of oxygen with the molecular formula O?. It is a sky blue odorous gas, with a dark black liquid and a blue black solid. Ozone is primarily present in the lower stratosphere, located 20 kilometers above the Earth's surface. It absorbs, blocks, and weakens harmful shortwave ultraviolet radiation to prevent it from reaching Earth.
Ozone sterilization
Ozone damages the structure of microbial membranes through the oxidation effect of oxygen atoms to achieve sterilization.
Ozone always responds quickly to bacterial inactivation, unlike other disinfectants: ozone can react with the double bonds of bacterial cell wall lipids, penetrate into the interior of the bacterial cell, affect proteins and lipopolysaccharides, alter cell permeability, and then cause bacterial death. Ozone also affects nuclear substances inside cells, such as purines and pyrimidines in nucleic acids, which damage DNA.
Ozone technology is both old and new, invented by German chemists in 1840 and used in the water treatment and disinfection profession in 1856. Currently, ozone has been widely used in fields such as water treatment, air purification, food processing, medical care, pharmaceuticals, and aquaculture, which has greatly promoted the development of these professions.
The toxicity of ozone
When the concentration of ozone in the environment is high, it is also an environmental pollutant gas, which is one of the greenhouse effect gases. While killing bacteria, it also causes damage to human cells. In areas with static electricity and near printers, ventilation should be taken into account to avoid toxic effects caused by high ozone concentration.
Principle of Ozone Sterilization
Ozone is a strong oxidant, and the sterilization process belongs to the biochemical oxidation reaction.
There are three ways of ozone sterilization:
Ozone can oxidize and differentiate the enzymes required for glucose inside bacteria, leading to their inactivation and death.
2. Directly interact with bacteria and viruses, damaging their organelles and DNA RNA, Damage the metabolism of bacteria, leading to their death.
3. Through the arrangement of the cell membrane, it invades the cell and affects the lipoproteins on the outer membrane and lipopolysaccharides inside, causing bacteria to undergo permeability distortion and dissolve and die.
Ozone disinfection
The domestic ozone technology is gradually becoming more sophisticated, and ozone is gradually becoming well-known to everyone because of its strong disinfection ability, which has replaced conventional disinfection and been applied in various fields
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