Speaking of ozone sterilizers, we may not be very familiar with the surface meaning that we can understand is a disinfection and sterilization tools, in fact, disinfection and sterilization is only a small function of ozone sterilizers, which are widely used in food and drug industries such as cosmetics and other industries in the processing plant and similar places in the air sterilization and object surface sterilization. Here we come to understand the ozone sterilizer in all walks of life in a wide range of applications.
Ozone disinfector introduction:
Ozone technology is both old and new technology, 1840 German chemist invented this technology, 1856?year was used in the water treatment disinfection industry. At present, ozone has been widely used in water treatment, air purification, food? processing, medical, pharmaceutical, aquaculture and other fields, the development of these industries has played a great role in promoting? role. Ozone can be produced using an ozone generator, and its generation principle ozone can be generated by high-voltage discharge, corona discharge, ? Electrochemical, photochemical,? Atomic radiation and other methods to get, the principle is to use high-voltage electricity or chemical reaction, so that the air? The principle is to use high-voltage electricity or chemical reaction to make part of the oxygen in the air? gas decomposition and polymerization into ozone, is a process of oxygen isomerization transformation. The molecular formula of ozone is O3.
Sterilization principle
Ozone is a strong oxidant, the sterilization process is a biochemical oxidation reaction.O3 sterilization has the following three forms:
1. Ozone can oxidize the enzymes needed to break down glucose inside the bacteria, so the bacteria will be inactivated and die.
2. Directly interacting with bacteria and viruses, it destroys their cellular organelles and DNA and RNA, disrupting bacterial metabolism and leading to bacterial death.
3. Through the cell membrane organization, invade the cell, act on the lipoprotein of the outer membrane and the internal lipopolysaccharide, make the bacteria undergo permeability aberration and lysis death.
Advantages of ozone sterilizer:
Ozone sterilization is a lysis level method, sterilization is thorough, no residue, sterilization broad-spectrum, can kill bacterial propagules and spores, viruses, fungi, etc., and can destroy botulinum toxin. In addition, O3 also has a strong killing effect on mold.O3 due to poor stability, will soon decompose itself into oxygen or individual oxygen atoms, and individual oxygen atoms can be combined into oxygen molecules on their own, there is no toxic residue, so O3 is a non-polluting disinfectant.O3 is a gas, it can quickly diffuse to the entire sterilization space, sterilization without dead ends. The traditional sterilization methods, whether it is ultraviolet light, or chemical fumigation, are not thorough, dead ends, workload, residual pollution or odor and other shortcomings, and may damage human health. Such as the use of ultraviolet disinfection, no effect in places where the light can not be irradiated, there is a recession, weak penetration, the service life is not long and other shortcomings. Chemical fumigation method also has shortcomings, such as very strong resistance to bacteria and viruses, the sterilization effect is not obvious.
Activated oxygen (ozone) sterilization and disinfection effect is reflected in its strong oxidation, is globally recognized as a green broad-spectrum efficient disinfection and sterilization agent. Widely used in drinking water disinfection, medical and health institutions air disinfection, ozone will be automatically reduced to oxygen after 30-40 minutes, no chemical residues secondary pollution. The applied fields are disinfection cabinet, fruit and vegetable detoxification machine, gynecological therapeutic instrument, food processing, drinking water filling and disinfection equipment. For details, you can check the science book information or online query to verify.
Problems with ozone sterilizers:
Ozone disinfection as an alternative to chlorine disinfection is increasingly used in drinking water treatment. Tests have shown that ozone has a significant inactivation effect on almost all bacteria, viruses, fungi and protozoa, oocysts. Disadvantages are: large investment, the cost is higher than chlorination disinfection; O3 in the water is not stable, control and detection of O3 requires certain technology; disinfection of the pipeline has a corrosive effect, so there is no residual O3 so the need for a second disinfectant; and iron, manganese, organic matter, etc., the reaction, which can produce micro-flocculation, so that the turbidity of the water; ozone oxidation of raw water containing bromide ions will produce bromate. Bromate has been designated by the International Agency for Research on Cancer (IARC) as a 2B potential carcinogen, WHO recommends that the maximum content of bromate in drinking water is 25 μg/L, and the U.S. Environmental Protection Agency (USEPA) Drinking Water Standards stipulate that the maximum permissible concentration of bromate is 10 μg/L. The generation of bromate in the process of ozonation oxidation and ozone oxidation and oxidation of ozone / hydroxyl radical oxidation of the two pathways to control bromate from the control of its formation and removal after generation of two aspects of bromate oxidation and ozonation oxidation of bromate oxidation. formation and removal after generation. Reducing pH, adding ammonia, chlorine-ammonia process and optimizing ozonation conditions are ways to control bromate formation, while bromate generation can be removed by physical, chemical and biological methods. Therefore, to achieve a balance between ozone, pathogenic bacteria and bromate, the mechanism of ozone sterilization and bromate control methods need to be further explored.
So don't be in a hurry to drink the water when you buy it home, the safe way is to put it on for a day or two, so that the bromate in the water is decomposed into harmless bromide before you drink it.
Ozone air disinfection precautions:
1, ozone on the human respiratory mucous membrane stimulation, ozone concentration in the air up to 0.15ppm, can be smelled; in accordance with international standards, up to 0.5-1ppm can cause dry mouth and other discomforts; up to 1-4ppm can be caused by coughing; up to 4-10ppm can be Can cause strong cough. Therefore, disinfection with ozone to disinfect the air, must be in the absence of human conditions, disinfection after at least 30 minutes before entering.
2, ozone is a strong oxidant, a variety of items have damage, the higher the concentration of damage to the items the more serious, can make the copper appear green rust spots, rubber aging, discoloration, elasticity, so that the brittle, fracture, so that the fabric bleaching discoloration.
Effect
The speed and effect of ozone sterilization is unparalleled, its high redox potential determines that it is oxidation, decolorization, deodorization of a wide range of applications, it has been pointed out that the ozone is dissolved in the water, almost able to kill the water of all the harmful substances in the human body, such as iron, manganese, chromium, sulfate, phenol, benzene, The ozone layer can also decompose organic matter and eliminate algae.
Ozone disinfection and sterilization methods compared to conventional sterilization methods have the following characteristics:
?(1) high efficiency. ozone sterilization sterilization is to air as coal, without any other auxiliary materials and additives. The body inclusive good, sterilization thorough, with into there is also a strong mold, fishy, stink and other odors in addition to the function.
(2) High cleanliness. The rapid decomposition of ozone into oxygen is characterized by the unique advantages of ozone as a disinfection and sterilization. Ozone is generated using the oxygen in the air, the disinfection process, excess oxygen in 30 minutes and then combined into oxygen molecules, there is no residue, to solve the problem of secondary pollution generated by disinfectant disinfection methods, while eliminating the need to disinfect the end of the cleaning again.
(3) Convenience. Ozone sterilizer is generally installed in the clean room or air purification system or sterilization room (such as ozone sterilization cabinet, transfer window, etc.). According to the debugging verification of the sterilization concentration and time, set the sterilizer according to the time to open and run time, easy to operate and use.
(4) Economy. Through the use of ozone sterilization in many pharmaceutical industries and health care units and the operation of the comparison, ozone disinfection method compared with other methods have great economic and social benefits. In today's rapid industrial development, environmental issues are particularly important, while the ozone disinfection to avoid the secondary pollution produced by other disinfection methods.
The role of ozone generator in various industries
In terms of disinfection, the ozone is mainly used in the following ways:
1?Liquid disinfection: purification and disinfection of potable water, industrial wastewater, and beverage water.
2?Object surface disinfection , eating utensils, barber tools, food processing equipment, clothing, coins, tickets and so on in the closed box disinfection.
3, antiseptic preservation: vegetables? Fruits? The first time I've seen this, I've seen it in the past. Fish, meat, dried and fresh souvenirs, aquatic products processing, storage and refrigeration.
First, the role of ozone in the public **** place of business
The use of ozone strong oxidizing properties can be removed from the decorative, synthetic panels, paint released by the toxic substances, can kill airborne bacteria, viruses, kill microorganisms breeding in the carpet, eliminate cold germs to prevent influenza occurs to increase the indoor oxygen content.
Ozone odor removal performance is excellent. Strong oxidation performance can quickly decompose odor and other organic or inorganic substances. The main components of odor are amine R3N, hydrogen sulfide H2S, methyl mercaptan CH2SH and so on.
Second, the comprehensive role of ozone in the hotel and restaurant
As our country is in a period of development , environmental pollution is serious, the large amount of industrial effluent discharge, resulting in the quality of drinking water is difficult to meet the World Health Organization (WHO) direct drinking water standards. ) direct drinking water standards. Foreign guests to our country, foreign businessmen, overseas Chinese and sightseeing tourists, they are both the spread of modern civilization, at the same time certain people are also carriers of regional disease virus.
Third, the ozone of fruit and vegetable cold storage applications:
Ozone in the application of vegetable and fruit storage, in addition to killing or inhibiting the growth of mold, to prevent the role of decay, but also to prevent aging and other preservation effects. The mechanism is that ozone can oxidize and decompose fruits and vegetables respiratory ripening agent a ethylene gas C2H4. ethylene intermediate products also have the inhibition of mold and other microorganisms. Ozone can play a role in sterilization and mildew and rapid decomposition of ethylene to slow down the metabolism of two aspects, to delay maturation, aging and decay, with packaging, refrigeration, air conditioning and other means to improve the effect of preservation.
Fourth, the ozone applied to the car air purification
Borrowed from the ozone sterilization method, the biggest advantage is that there will be no residual hazardous substances, will not cause a second pollution of the car. Ozone disinfection method is simpler to operate, a hose connected to the car special disinfector into the cabin, open the car special disinfector and the car air conditioning, the use of air conditioning air circulation, the special disinfector produced by a high concentration of ozone to every corner of the car, only a few minutes. Eliminate germs more thoroughly. The shortcoming is that the disinfection of the car will remain a little ozone smell, but as long as the windows will be opened for a while, the ozone will automatically decompose into a colorless and tasteless gas evaporated. Using this method of disinfection once a month, many car beauty service stores provide ozone disinfection services, charging about sixty yuan. Nanning cold storage project | Nanning hotel cold storage | hotel cold storage installation | hotel cold storage maintenance
five, ozone - green food disease prevention technology
Ozone, also known as oxygen-rich, superoxide, three-atom oxygen, oxygen (O2) is a homogeneous isomer of the molecular formula for the O3, because of the similarity to the stink after lightning and named. Ozone is commonly used oxidants in the oxidation of the strongest one, its disinfection and sterilization capacity is more than 2 times that of chlorine, sterilization speed is 300-600 times that of chlorine, is 3000 times that of ultraviolet light, and there is no dead zone, the reaction is reduced to oxygen, is identified as a highly efficient, clean oxidant without secondary pollution.
The principle of ozone sterilizer is to use the high penetration of ozone to quickly enter the bacteria inside and kill the bacteria. Ozone is not harmful to health, so you do not need to worry about the occurrence of secondary pollution or harm.