Currently, China's air pollution problem is very prominent, and industrial waste gas is an important source of air pollutants. Organic waste gas is the most difficult industrial waste gas to treat. After entering the human body through the respiratory tract and skin, organic waste gas may cause temporary and permanent diseases to the respiratory, blood, liver, and other systems and organs, posing great harm to the human body; Organic waste gases are difficult to degrade in natural environments, so controlling them has always been a key and challenging task. Organic waste gas treatment refers to the use of various technological measures to reduce oil losses, minimize organic solvents or exhaust purification, and eliminate organic waste gas pollution. Organic waste gas pollution sources are widely distributed. In order to prevent pollution, in addition to reducing oil loss and organic solvent consumption to reduce the generation and emission of organic waste gas, the types of organic waste gas usually include formaldehyde, toluene, xylene and other benzene derivatives, acetone, ethyl acetate, oil mist, furfural, styrene, acrylic acid, resin, additives, paint mist, thinner and other air purification methods containing carbon, hydrogen and oxygen organic compounds. Exhaust purification is currently a feasible treatment method. The following Guangdong Rundongfang Environmental Protection Air Conditioning Factory has compiled the available information and introduced 12 commonly used organic waste gas treatment methods in China.

2. Organic waste gas treatment method - adsorption method: Working principle: Adsorption of waste gas by activated carbon. After adsorption saturation, activated carbon desorption regeneration is a widely used purification technology in industrial organic waste gas in China. There has been a new breakthrough in organic solvent recovery, and organic waste gas can be recycled and reused. Advantages and disadvantages: High purification efficiency and low cost. Disadvantage: Difficult to regenerate, requiring constant replacement. The equipment is large, the process is complex, and the operating cost is high. Not suitable for high humidity environments. When there are colloidal particles or other impurities in the exhaust gas, the adsorbent is prone to poisoning. Applicable conditions: Mainly used for processing low concentration, high-throughput volatile organic compounds. Benzene waste gas has good adsorption properties, but poor adsorption properties for hydrocarbon waste gas. Introduction to 12 commonly used organic waste gas treatment methods in China

4. Organic waste gas treatment method - liquid absorption method: Working principle: Liquid absorption method utilizes the principle of similar solubility between liquid absorption liquid and organic waste gas. A mixture of liquid petroleum substances, surfactants, and water is commonly used as an absorbent to enhance absorption efficiency. Introduce the absorbent into the exhaust gas for purification, and then heat, analyze, condense and recover it after the absorbent is saturated. Advantages and disadvantages: Reusable. Disadvantages: It requires a heating analysis and recovery device, with a large equipment volume and high investment. Applicable conditions: This method is applicable to exhaust gases with high gas volume, low temperature, and low concentration.

6. Organic waste gas treatment method - adsorption and catalytic combustion method: Working principle: This method uses honeycomb shaped activated carbon adsorption, and introduces hot air for desorption and analysis after the activated carbon is close to drinking. After desorption, the exhaust gas is introduced into the catalytic combustion bed and burned without flames to thoroughly purify it. Advantages and disadvantages: Combining the advantages of adsorption and catalytic combustion methods, the hot gas is recycled in the system, greatly reducing energy consumption. It has the characteristics of stable and reliable operation, investment savings, low operating costs, and easy maintenance. Applicable conditions: Suitable for the treatment of high air volume and low concentration waste gas, it is currently a mature and practical method for treating organic waste gas in China.

8. Organic waste gas treatment method - nano micro electrolysis oxidation method: Working principle: Nano micro electrolysis purification technology uses nano processed piezoelectric materials. The electrical adsorption of nano micro electrolysis materials can be generated by micro electrolysis electric fields, which release a large number of hydroxyl negative ions to purify aerobic pollutants in gases. At a certain humidity, most organic matter in the air can be removed. Applicable conditions: Analyze inorganic odors such as ammonia nitrogen, hydrogen sulfide, etc.

10. Organic waste gas treatment method - waste gas scrubbing tower: Working principle: The scrubbing tower is a waste gas treatment technology that has a significant absorption and dissolution effect on industrial waste gases such as acid mist waste gas treatment, alkali mist waste gas treatment, paint waste gas treatment, and paint waste gas treatment. Organic waste gas treatment, chemical waste gas adsorption, oxidation-reduction, acid-base neutralization comply with national industrial waste gas emission standards. Applicable conditions: Suitable for a wide range of organic waste gas treatment, with high treatment efficiency, widely used in industries such as paint spraying rooms, paint spraying rooms, and paint baking rooms.

12. Organic waste gas treatment method - photocatalytic oxidation: Working principle: The technology of photocatalytic waste gas treatment equipment is a special treatment method that uses a special ultraviolet band (C-band) to break down waste gas molecules and further oxidize and reduce them under the action of a special catalytic oxidant. Waste gas molecules first break down organic molecules through high-energy ultraviolet light waves in a special wavelength band, breaking their molecular chains; At the same time, by decomposing oxygen and water in the air, high concentrations of ozone can be obtained, which further absorbs energy, forms free hydroxyl groups, and oxidizes waste gas molecules, with higher oxidation performance. At the same time, various composite inert catalysts are configured according to different exhaust gas components, greatly improving the speed and efficiency of exhaust gas treatment, thereby achieving the goal of purifying exhaust gas.