We all know that environmental impacts are causing more and more diseases, and the outdoor haze weather is prohibitive, but the indoor air does not necessarily allow us to breathe. If there are children, elderly people or expectant mothers during pregnancy, then an air purifier at home is necessary to remove the dirty air at home, which is very helpful to protect the health of the elderly and children.
Nowadays, air purifiers on the market are full of consumers. Many people have already bewildered and do not know how to choose. First of all, whether the overall appearance design has a sense of beauty is the most intuitive selection criterion, and then it is the performance of removing pollutants in the air, which is a key factor that many people value.
In addition to the ozone machine can be disinfected, there are many disinfection products, but each product has its advantages and disadvantages, such as the following ultraviolet disinfection lamps:
Ultraviolet rays are mainly used to kill microorganisms through radiation damage to microorganisms (pathogens such as bacteria, viruses, spores, etc.) and damage to nucleic acids, thereby achieving the purpose of disinfection. The effect of ultraviolet light on nucleic acids can cause bond and chain breaks, interstrand cross-linking, and formation of photochemical products, etc., which changes the biological activity of DNA and prevents microorganisms from replicating themselves. This ultraviolet damage is also fatal.
Advantages and disadvantages of UV disinfection
Ultraviolet disinfection technology has advantages unmatched by other disinfection technologies, and overcomes the shortcomings of the existing traditional disinfection technology. Many countries in Europe and Canada and the United States in North America have respectively revised their environmental laws in the 1990s. In the disinfection of wastewater after treatment and the disinfection of drinking water, the use of ultraviolet disinfection technology is recommended. The advantages of ultraviolet disinfection mainly include: Disinfection technology has high sterilization efficiency, safe and reliable operation, UV disinfection takes only a few seconds to achieve the same inactivation effect, and because no chemical agent is added, it will not cause secondary pollution to water bodies and the surrounding environment
The UV disinfection effect technology also has certain shortcomings in engineering applications, mainly in the following aspects; without continuous sterilization ability, if the disinfected water encounters a new source of pollution, it will be contaminated again and needs to be used in conjunction with chlorine.
The role of the ozone machine is that most of the reactions in the ozone chemical reaction are redox reactions, so ozone can react with almost all substances, especially various bacteria and viruses. The principle of ozone disinfection in water is the oxidation-reduction reaction of ozone in water, which produces highly oxidizing monoatomic oxygen (O) and hydroxyl (OH). The microorganisms in the water react directly with ozone in dissolved water and decompose with ozone. Indirect reaction of the generated hydroxyl OH. Hydroxyl (OH) is a strong oxidant and catalyst, which can cause chain reactions of organic matter, the reaction is very rapid, and it has a strong killing effect on various pathogenic microorganisms. Monoatomic oxygen (O) also has strong oxidizing ability, and has a strong lethality to tenacious microorganisms such as viruses and spores.
Ozone sterilization mechanism achieves sterilization by oxidizing the structure of microbial membranes. Ozone first acts on the cell membrane, causing damage to the membrane constituents and causing metabolic disorders. Ozone continues to penetrate and penetrate the membrane to destroy the lipoproteins and lipopolysaccharides in the membrane, change the permeability of the cells, and cause cell lysis and death. Ozone kills the virus, which is considered to be completed by oxidization directly destroying its ribonucleic acid DNA, which is a lysolytic sterilization process and is quite thorough.
Ozone gas in the space can eliminate mold and odor of air and articles, and can degrade harmful substances, decompose formaldehyde, benzene series, sulfide, carbon monoxide, ethylene, etc., oxidize them and convert them into harmless substances.
The final products of all ozone chemical reactions are H2O, CO2, O2 and so on. At the same time, as a transient state (a state of matter that requires external energy to exist), when the external electric field stops supplying energy, after a certain period of time (half-life), the ozone itself will be decomposed and reduced to oxygen existing in nature, becoming No secondary pollution disinfection method.
Application of ozone
Bacterial propagules: effective against Pseudomonas aeruginosa, E. coli, Staphylococcus aureus, Staphylococcus aureus, D. dysenteriae, etc.
Against bacterial spores: effective against Bacillus subtilis variant spores, etc.
To the virus: effective against hepatitis B surface antigen, hepatitis A surface antigen, influenza A virus, etc.
For fungi: effective against Aspergillus versicolor, P. amygdalus, Cladosporium spp., Penicillium, Aspergillus niger, etc.
For protozoa: effective
against flagellates and cryptosporidium eggs
Broad-spectrum sterilization: it has inactivating effect on bacteria, viruses, molds, fungi, protozoa, etc., which belongs to the principle of bacteriolysis
Degradation of heavy metal ions, organic poisons and pesticides such as dichlorvos, omethoate, malathion
When ozone is generated, a large number of negative oxygen ions are generated, which can inhibit the respiration of fruits and vegetables and delay aging; kill pathogens and decompose ripening components-ethylene, alcohols, aldehydes and other substances to prevent decay, and the storage period can be extended appropriately 5 times
Deodorization and deodorization
The source of odor is ammonia, hydrogen sulfide, methyl mercaptan, dimethyl sulfide, dimethyl disulfide, etc. Ozone can chemically react with it to decompose the above substances and achieve a deodorizing effect.
Areas of daily life
1. Air deodorization, disinfection, sterilization, removal of harmful odors, killing infectious bacteria and viruses.
2. Disinfection of drinking water: kill microorganisms and germs, and remove organic poisons.
3. Sterilization of kitchen utensils, tableware, toys, and clothing: kill bacteria and improve the antibacterial effect after washing.
4. Detoxification and fresh-keeping of fruits and vegetables: Storage in ozone-type refrigerators or washing fruits and vegetables with ozone water can sterilize and extend the shelf life.
5. Prevent infection: Wash your hands with low-concentration ozone water to prevent germ infection.
6. Treat certain skin diseases and eliminate bad breath: Frequent immersion in ozone water can kill skin diseases caused by fungi.
7. Medical beauty field: proper skin fumigation can delay aging.
In comparison, the ozone machine is safer and more reliable than the ultraviolet lamp disinfection, and there is no need to worry about the bacteria being completely killed.