As early as the 19th century, people recognized the strong oxidizing effect of ozone, and found that ozone has an oxidizing effect on wood, straw, starch, plant pigments, natural rubber, fat, animal and vegetable oils and alcohol. In 1868, de Gebeth obtained the first patent for ozone application technology, which uses ozone to oxidize coal tar mixtures into products suitable for coatings and paints. In 1873, Europe put ozone into use in sugar refining and flax bleaching. Over the past 100 years, ozone has been applied in many fields and has made significant contributions to the development of human production technology. The application of ozone is divided into four fields: water quality treatment, chemical oxidation, food processing and preservation, and medical treatment. The application research and equipment development in each field have reached a very high level. The world has formed an independent ozone technology industry and sector, and the International Ozone Association (IOA) established in 1973 is located in Canada. The association holds an international conference every two years to exchange papers and reports on the development of ozone technology in various countries. Developed countries have generally established IOA regional organizations for academic exchanges.

After World War II, the international ozone application technology has made great progress. First of all, in 1902, Paderborn, Germany established the first large-scale water plant to treat water quality with ozone, creating a precedent for ozone water treatment. Now there are thousands of ozone water plants in Europe, America, Japan, Canada, etc. The application of ozone in the water plants of the country has reached a popular level. Almost all mineral water and purified water manufacturers are equipped with ozone equipment. In the early 1970s, the United States began to use ozone to treat domestic sewage, mainly for sterilization, removal of pollutants, and decolorization to meet emission standards. In Japan, in water-deficient areas, the sewage is treated with ozone and used as reclaimed water. The United States, Japan, Germany, France and other countries have established large-scale ozone sewage treatment plants in recent years. Secondly, the industrial application of ozone has also been very common, mainly used in chemical, petroleum, paper, textile and pharmaceutical, and perfume industries. The application in the food industry is more popular. In 1904, Europe used ozone to preserve milk, meat products, cheese, protein and other foods. In the late 1930s, 80% of refrigerated egg warehouses in the United States were equipped with ozone generators. After World War II, Europe, the United States, and Japan applied ozone to storage, manufacturing, and transportation in the preservation of food, fruits, and vegetables. In terms of medical treatment, Japan used ozone for human physiotherapy during World War II, and Russia used it for strong gas (ozonated air) sports applications. At present, there are many international uses in medical treatment: such as air disinfection in wards and operating rooms, using ozone water for medical equipment disinfection, using ozone for dental disease treatment (oral surgery and maintaining oral sterility), using ozone and radiation Physiotherapy combined to treat cancer, drinking ozone water to treat women's disease, injecting ozone gas to treat fistula hemorrhoids, varicose veins, etc. In terms of health care, it is popular in Japan and Taiwan to inhale strong air (air containing low concentration of ozone) to strengthen the body, and shower the body with ozone water to kill bacteria and beautify the body. Now popular high-tech beauty, in fact, is the application of ozone.

1 The main function of ozone

Sterilization: It can quickly and completely eliminate viruses and bacteria in the air and water. According to the experimental report of the academic unit, when the ozone concentration in the water is 0.05ppm, after ten to ten minutes of treatment, the bacterial inactivation rate is above 99%.

Detoxification: Due to the development of industry and commerce and the enjoyment of a high degree of material civilization, life is full of various substances harmful to the human body: such as carbon monoxide, pesticides, heavy metals, fertilizers, organic matter, odors, pigments, etc. Decomposed into safe substances that are harmless to the human body.

Preservation: The United States, Japan and advanced countries in Europe have applied ozone to the storage of various foods, which can prolong the storage period of food and reduce the spoilage rate, so as to reduce losses and increase profits.

Bleaching: Because ozone has a strong oxidizing effect, it is a strong bleaching agent in itself, which can be used in laundry, food and wastewater treatment.

Deodorization: Ozone can quickly and completely eliminate various odors in the air and water due to its strong oxidative decomposition ability.

2 The application of ozone

At this stage, the application of ozone technology in various fields mainly includes the following aspects: ① drinking water, industrial wastewater, domestic sewage, swimming pool water treatment and hospital sewage treatment; ② air sterilization and raw materials in medicine in the food industry and pharmaceutical industry cleaning and disinfection of processing utensils and sites; ③ preservation and transportation of fruits, vegetables and food; ④ ozone treatment and disease prevention in medicine; ⑤ bleaching of pulp and textiles in chemical industry; ⑥ water treatment in aquaculture ; ⑦ Air purification and disinfection in family rooms, degradation of residual pesticides on the surface of vegetables, fruits and vegetables; ⑧ Air sterilization, deodorization, deodorization, and so on in livestock and poultry breeding plants.

• Various public places

The strong oxidizing properties of ozone can remove toxic substances released by decoration, synthetic boards and paints, inactivate bacteria and viruses in the air, inactivate microorganisms growing in carpets, inactivate cold bacteria, and prevent the occurrence of influenza. Decompose residual pesticides attached to vegetables and fruits. Improve the freshness of fish and meat, make it more durable, and preserve fruits and vegetables. Bathing with ozone water has the functions of bleaching, beauty and health care. Deodorizing kitchen and bathroom.

•  Healthcare

Ozone can be used for sterilization and disinfection of space air in medical places. Ozone water can disinfect the hands of doctors and nurses before surgery in hospitals, and can inactivate all bacteria. Not only does it take a very short time, but its bactericidal power far exceeds that of alcohol and chlorine. And ozone water has reliable safety.

Ozone also has the effect of treating certain diseases and beauty. For example, frequent rinsing and foot soaking with ozone water can effectively treat and prevent athlete's foot and athlete's foot; frequent rinsing of fungal-infected skin disease areas with ozonated water can receive significant therapeutic effects; frequent rinsing of wounds with ozonated water can prevent wound infection and promote its healing, etc. .

•  Application in the food industry

The purpose of applying ozone in the food processing industry has four aspects: one is to inactivate microorganisms - sterilization; the second is to oxidize and decompose organic or inorganic pollutant gases - deodorization and purification; the third is to decompose fruit and vegetable metabolites and inhibit the post-ripening process - -Preservation; Fourth, degradation of pesticide residues in foods such as fruits and vegetables-removal of residues. The application basis of the four aspects all rely on the strong oxidizing properties of ozone and the characteristics of unstable and easy decomposition. Specifically, it can be applied in the food processing industry and in the food and fruit preservation industry.

•  In the livestock and poultry breeding industry

It can quickly inactivate various common bacteria, infectious viruses, fungi, mycoplasma, spirochetes and other pathogenic microorganisms in the indoor air of the farm, and remove a large amount of ammonia, hydrogen sulfide, methane and other harmful gases and fecal odors produced by fermentation of feces. , Reduce livestock and poultry diseases, especially prevent the outbreak of large-scale epidemic infectious diseases, improve the survival rate and livestock product output, save labor and drug costs, and improve the production environment on the field. Sterilization and preservation of eggs in poultry industry to improve hatchability.

•  Application in water treatment

It can oxidize redundant or toxic inorganic substances, such as cyanide, etc., oxidize and remove organic substances in water, especially organic substances that are difficult to be degraded by microorganisms, such as surfactants, reduce BOD and COD in water, inactivate viruses and bacteria in water, and generate clean and harmless. Disinfectant. It can be widely used in drinking water sterilization, reclaimed water reuse and purification, sewage treatment, greenhouse soil disinfection, swimming pool water treatment and hospital sewage treatment.