Li Yongming Zheng 'ao Environmental Protection Industry Co., Ltd.

First, the status quo of ozone industry in China

In the Technical Specification for Disinfection issued by the Ministry of Health 199 1, the sterilization function, application scope and application method of ozone are clearly defined. Among them, the bactericidal effect on ozone is affirmative: "4. 12.2 bactericidal effect: ozone is a broad-spectrum bactericide, which can kill bacterial propagules, spores, viruses, fungi and so on. And can destroy the botulinum toxin. Ozone kills bacteria in water faster than chlorine. " The laws and standards of sanitation and disinfection in these countries have guided the formation and development of ozone industry in China to some extent.

However, it is obvious that the country has not paid enough attention to the ozone industry, insufficient investment, and inadequate publicity and education, resulting in consumers' extreme ignorance of the ozone industry and ozone products. So far, there are no laws and regulations related to ozone industry and ozone products in China. It can be said that this has become the bottleneck of the development of ozone industry in China.

Fortunately, with the development of ozone industry, the country has gradually noticed this green, dynamic, healthy and environmentally friendly industry. At the same time, the establishment of trade associations and the drafting of industry standards have enabled us to see the dawn of the ozone industry.

Second, the application prospect of ozone

As a strong oxidant, disinfectant, refined preparation and catalyst, ozone is widely used in many departments such as water treatment, medicine and health, petrochemical industry, food, paper making and perfume purification. Over the past 100 years, the application of ozone has penetrated into many fields and made great contributions to the development of human production technology.

At home, with the enhancement of people's awareness of ozone and environmental protection, the requirements for health and environmental protection are becoming stronger and stronger. As an environmental protection disinfection products in the 2nd/Kloc-0th century, ozone household appliances have been widely used in fruit and vegetable disinfection, air purification, drinking water sterilization and so on, and attracted more and more consumers' attention and praise. It is believed that with the introduction of industry standards and the continuous improvement of people's understanding of ozone disinfection, ozone household appliances that meet the national standards will be favored by more and more consumers.

Food safety calls for fruit and vegetable disinfection products.

Pesticide residue is another new topic of food safety at present. Poisoning by "poisonous vegetables, poisonous rice, poisonous meat and poisonous fruit" is getting worse and worse all over the country, and its severity has been included in the motion of the Fifth National People's Congress. Eliminating pesticide residues is a difficult problem to be solved urgently. It has attracted enough attention in the world. The World Health Organization (WHO) and all mankind are eagerly looking forward to an effective method to remove pesticide residues and protect human health.

Faced with the daunting "pesticide vegetables", people usually adopt the method of "washing once, soaking twice and scalding three times", but experts believe that this method has little effect. Some people also use detergent to wash, but detergent itself is a chemical substance, and the impact on the human body is the same if it is used too much. If we can develop a machine that can remove pesticide residues from vegetables, it is the effective demand of society and enterprises.

Three, the functions of qualified fruit and vegetable detoxification cleaning machine include:

1, pesticide degradation, can effectively degrade pesticide residues in rice, vegetables, melons and fruits, and the treated melons and fruits do not lose nutrition, taste more delicious, and prolong shelf life and storage life;

2, removing hormones, using this product to treat meat, fish, seafood and other foods can remove harmful substances such as growth hormone, hormones and clenbuterol;

3. Sterilization and disinfection: it can quickly kill bacteria, molds, viruses and other microorganisms on the surface of fruits and vegetables while degrading pesticides, with an effect of 99.9%;

4. Tableware disinfection: it can kill viruses A and B on the surface of tableware and utensils, and disinfect the dining place in all directions.

5. However, due to the weak technical strength of most domestic ozone production enterprises, relevant industry standards have not yet been issued, and there is no unified evaluation standard, resulting in uneven product quality. Many products can only play a cleaning role, but can not achieve the purpose of disinfection.

Four, several points to judge the qualification of fruit and vegetable detoxification cleaning machine

1. The main function of the fruit and vegetable detoxification cleaning machine is to detoxify and remove pesticide residues, followed by cleaning.

In order to effectively remove pesticide residues, the ozone concentration in water should be above 0.4- 1ppm, and below this concentration, the purpose of thorough sterilization and disinfection cannot be achieved, and the effect of removing pesticide residues is not good.

2, product efficacy should be stable.

To ensure the stability of drug efficacy, it is necessary to ensure the stability of ozone concentration in water, ozone output and gas phase concentration. In this way, the problem of ozone failure under the influence of high humidity and high temperature in the air can be avoided in different regions, different seasons and different use environments.

3. The performance of the machine itself should be stable.

The properties referred to here include mechanical properties and electrical properties. It is required that the product structure and electrical performance must be reasonable in design. In terms of materials, considering the strong oxidation of ozone, we should use safe, environmentally friendly and antioxidant materials. Only in this way can we ensure the effective operation, sterilization and removal of residual pesticides of the fruit and vegetable detoxification cleaning machine.

4. Ensure the safety of ozone household appliances.

The safety of ozone household appliances mainly refers to the tail gas treatment of fruit and vegetable detoxification cleaning machine and the avoidance of excessive nitrogen oxides.

A. tail gas treatment. Ozone is a non-toxic and safe gas at a certain concentration. However, if the concentration is too high, it will stimulate people's respiratory system, cause stress reaction of respiratory system, and seriously cause reversible harm, especially to children and pregnant women.

B, avoid excessive nitrogen oxides. Excessive nitrogen oxides will produce excessive nitrite in water, which will do harm to the body.

Therefore, it is also a technical problem to effectively deal with tail gas emissions, avoid excessive nitrogen oxides and ensure the personal safety of consumers.

Verb (abbreviation of verb) Conclusion: As the governing unit of ozone industry association and the participating unit in drafting the industry standard of fruit and vegetable detoxification cleaning machine, in order to make ozone household appliances manufacturers take fewer detours, produce qualified products that consumers can rest assured and trust, and at the same time, let consumers have a rational understanding of ozone household appliances, our company has written this article for reference on the basis of summing up a full set of technologies after long-term research and practice. (This article was published in official website, China Ozone Association in 2005 at the invitation of China Ozone Association).

Attached with internationally recognized ozone safety standards:

International Ozone Association: 0. 1ppm, contact 10 hour.

United States: 0. 1ppm, contact for 8 hours.

Germany, France, Japan and other countries: 0. 1ppm, contact 10 hour.

China: 0. 15ppm, contact for 8 hours.

The above are the safety and hygiene standards for people in ozone gas environment, and the product of its concentration and contact time can be used as a reference point.