I. Product Overview
The UV photo-oxidation catalytic purifier is an efficient catalytic waste gas treatment equipment, mainly composed of UV lamps, photocatalytic plates, boxes and other components. It features a compact structure and novel design, with a small footprint, light weight and convenient transportation, making it very suitable for various places with tight layouts and limited space. Its equipment materials usually choose high-quality materials such as carbon steel, which has good corrosion resistance and can adapt well to the outdoor environment, and it can play an important role in many scenarios where waste gas treatment and air quality improvement are needed.
II. Working Principle
Photolysis: Utilize special high-energy and high-ozone UV ultraviolet light beams to irradiate malodorous gases and industrial waste gases. When these gas molecules absorb ultraviolet light, their internal chemical bonds will break and their molecular structures will be destroyed. For example, light with a wavelength of 253.7 nanometers can cut, break chains, burn and crack the waste gas molecular chains to change the molecular structure.
Ozone Oxidation: The ultraviolet light beam can decompose oxygen molecules in the air to generate free oxygen (active oxygen). Since the free oxygen has an unbalanced positive and negative electron carrying state, it will combine with oxygen molecules to generate ozone. Ozone has a very strong oxidizing effect and can polymerize with the atoms of pollutants in a free state to generate new, harmless or less harmful substances such as CO₂ and H₂O. Moreover, ozone has a very strong oxidizing effect on organic substances and has an immediate effect on removing malodorous gases and other irritating odors.
Catalytic Reaction: According to different waste gas components, a variety of corresponding inert catalysts are configured. These catalysts use honeycomb-shaped metal mesh holes as carriers and are in contact with the light source. Under the light source with a wavelength below 338 nanometers, the inert catalysts will undergo a catalytic reaction, which can amplify the effect of the light source, promote the full reaction between the waste gas and the light source, shorten the contact time and improve the waste gas purification efficiency.
III. Performance Characteristics
High-efficiency Odor Removal: It can efficiently remove main pollutants such as volatile organic compounds (VOCs), inorganic substances, hydrogen sulfide, ammonia, mercaptans, as well as various malodorous odors. The deodorization efficiency can reach more than 99%, and the deodorization effect greatly exceeds the national Malodorous Pollutants Emission Standard (GB14554 - 93) promulgated in 1993.
No Need to Add Any Substances: Only the corresponding exhaust ducts and exhaust power need to be set up, and the malodorous gases can be deodorized, decomposed and purified through this equipment. There is no need to add any substances to participate in the chemical reaction during the whole process.
Strong Adaptability: It can adapt to the deodorization and purification treatment of high-concentration, large-air-volume and different malodorous gas substances. It can work continuously for 24 hours a day, with stable and reliable operation. It can play a good role under various complex working conditions.
Low Operating Cost: The equipment has no mechanical movements, no noise during operation, and does not require special personnel for management and daily maintenance. Only regular inspections are needed. Moreover, the equipment has low energy consumption. It consumes less electricity when processing a certain amount of gas. At the same time, the equipment has extremely low wind resistance, which can save a large amount of exhaust power energy for users.
No Need for Pretreatment: Malodorous gases do not need to undergo special pretreatment such as heating and humidification. The equipment can work normally when the working environment temperature is between - 30 °C and 95 °C, the humidity is between 30% and 98%, and the pH value is between 2 and 13, which is very convenient to use.
IV. Application Areas
Industrial Production Field: In industries such as petrochemical, pharmaceutical, printing and dyeing, coating, printing, and spraying, a large amount of organic waste gas will be generated during the production process. The UV photo-oxidation catalytic purifier can effectively decompose the harmful substances in these waste gases. For example, it can deal with hydrocarbon waste gas in the petrochemical industry, organic odor waste gas in the pharmaceutical industry, dye waste gas in the printing and dyeing industry, solvent waste gas in the coating industry, ink waste gas in the printing industry, and paint mist waste gas in the spraying industry, helping enterprises meet environmental protection emission requirements.
Environmental Protection and Governance Field: Malodorous gases will be emitted from places such as urban sewage treatment plants, garbage incineration plants, and garbage transfer stations. This purifier can remove hydrogen sulfide, ammonia and other malodorous substances in the waste gas, reducing the impact on the surrounding environment and the lives of residents, and contributing to the improvement of urban environmental quality.
Public Places and Home Environments: In public places such as shopping malls, hospitals, schools and offices, where people are dense and air circulation is not smooth, bacteria and viruses are easy to breed. Using the UV photo-oxidation catalytic purifier can kill bacteria and viruses in the air and improve indoor air quality. In the home environment, it can also remove harmful gases such as formaldehyde and benzene in newly decorated houses, as well as kitchen fumes and toilet odors, creating a healthy and comfortable living space for people.
Transportation Field: It can be installed in the exhaust pipes of automobiles to purify harmful substances such as carbon monoxide and hydrocarbons in the exhaust gas. It can also be applied to the waste gas treatment of ships, airplanes and other means of transportation, reducing the impact of exhaust gas on the environment and human health and helping green travel.
Agricultural Field: In agricultural production, places like farms will generate malodorous gases, and the air in agricultural greenhouses also needs to be purified. The UV photo-oxidation catalytic purifier can be used for waste gas treatment in these places, which is helpful to improve the growth environment of crops and increase the yield, and promote the sustainable development of agriculture.
V. Application Cases
Treatment of Malodorous Gases in Chemical Enterprises: A chemical factory generates a large amount of organic waste gas containing hydrogen sulfide, ammonia, mercaptans and other malodorous gases during the production process. After installing the photo-oxidation catalytic equipment, the molecular chains of organic or inorganic high-molecular malodorous compounds in the waste gas are gradually degraded into low-molecular compounds such as CO₂ and H₂O under the irradiation of the special high-energy and high-ozone UV ultraviolet light beams. At the same time, the free oxygen (active oxygen) is generated by decomposing oxygen molecules in the air with the high-energy and high-ozone UV ultraviolet light beams, and then ozone is generated by combining the active oxygen with oxygen molecules. Ozone oxidizes organic substances. After treatment, the waste gas emissions meet the national standards, and the living environment of the surrounding residents has been significantly improved, effectively resolving the contradiction between the enterprise and the surrounding residents caused by waste gas emissions.
Purification of Waste Gas in Spray Painting Rooms: The spray painting room of an automobile 4S shop generates a large amount of paint particles and organic waste gas during the painting process. By installing the photo-oxidation catalytic equipment, the organic components in the waste gas are decomposed into carbon dioxide and water under the irradiation of ultraviolet light, effectively removing the odor and achieving the purpose of air purification. Moreover, the efficient processing ability of the equipment also ensures that the air quality in the spray painting room meets the environmental protection requirements, providing a safe and comfortable working environment for employees and improving their work efficiency and job satisfaction.
Decolorization Treatment of Wastewater in Printing and Dyeing Enterprises: The printing and dyeing wastewater of Shanghai Hubang Printing and Dyeing Enterprise has the characteristics of high temperature, high chromaticity and high COD. The original single oxidation treatment process is difficult to meet the environmental protection requirements. The enterprise introduced the photocatalytic oxidation technology as a pretreatment process. The photocatalytic oxidation equipment uses ultraviolet light to irradiate the wastewater containing nano-TiO₂ photocatalyst, and the generated hydroxyl radicals attack the chromogenic groups in the wastewater to change their structures and achieve decolorization. After the photocatalytic oxidation treatment, the chromaticity of the wastewater is significantly reduced, the biodegradability is improved, and combined with the subsequent biochemical treatment process, all the indexes of the wastewater meet the standards for entering the park's sewage pipe network, realizing the达标排放 and partial reuse of the wastewater, saving water resources and sewage discharge fees for the enterprise, and improving the economic and environmental benefits of the enterprise.
Disinfection of Hospital Sewage: A hospital uses photo-oxidation catalytic equipment to disinfect sewage. The equipment destroys the nucleic acid (DNA) of bacteria and viruses in the sewage by means of ultraviolet irradiation and ozone generation, so as to achieve the purpose of killing bacteria and viruses. After the sewage is treated by the photo-oxidation catalytic equipment, the total number of bacteria and the content of viruses in the sewage are greatly reduced, effectively preventing the spread of pathogens, ensuring the safe discharge of hospital sewage, protecting the environment and the health of the public, and enhancing the public health protection ability of the hospital.
Air Purification in Automobiles: The UV photo-oxidation purifier of Cangzhou Longjing is widely used in the automobile industry. More and more private car owners install this purifier to improve the air quality in the car; car rental companies also install it to enhance their competitiveness; high-end special car services also use it as a means to improve service quality. Through the dual effects of ultraviolet light and ozone, it can efficiently kill bacteria and viruses in the air and purify the air, providing a healthy and comfortable riding environment for passengers and improving the riding experience of users.
In conclusion, the UV photo-oxidation catalytic purifier, with its unique working principle, excellent performance characteristics and wide application areas, has shown strong advantages in many aspects such as waste gas treatment, odor purification and air improvement, and is an indispensable important equipment in the fields of modern environmental protection and improvement of living quality.
