Exhaust gas purification equipment

UV catalyzed oxidationExhaust gas purification equipmentUsed for deodorization and purification of various odorous gases from pollution sources in refineries, rubber plants, chemical plants, pharmaceutical plants, sewage treatment plants, garbage transfer stations, kitchen waste treatment plants, feed plants, printing and dyeing plants, spray painting plants, etc.
UV catalyzed oxidationExhaust gas purification equipmentDilution diffusion method

Principle: Exhaust odorous gases into the atmosphere through chimneys or dilute them with odorless air to reduce the concentration of odorous substances and decrease the odor. Scope of application: Suitable for treating organized emissions of odorous gases with medium and low concentrations. Advantages: Low cost and simple equipment. Disadvantage: Easily limited by meteorological conditions, odorous substances still exist.

Water absorption method

Principle: By utilizing the characteristic that certain substances in the odor are easily soluble in water, the odor components come into direct contact with water, thereby dissolving in water to achieve the purpose of deodorization. Scope of application: Odorous gases that are water-soluble and have organized emission sources. Advantages: Simple process, convenient management, low equipment operating costs, secondary pollution generation, and the need to treat the washing solution. Disadvantages: Low purification efficiency, should be used in conjunction with other technologies, poor treatment effect on thiols, fatty acids, etc.

Aeration deodorization method

Principle: Disperse odorous substances in the form of aeration into a mixed solution containing activated sludge, and degrade odorous substances through suspended growth of microorganisms with a wide range of applications. Scope of application: As of 2013, Japan has used it for odor treatment in fecal treatment plants and sewage treatment plants. Advantages: After domestication, activated sludge can achieve a removal rate of over 99.5% for odorous components that do not exceed the maximum load. Disadvantage: Due to the limitation of aeration intensity, the application of this method still has certain limitations.

Catalytic oxidation process

Principle: The reaction tower is filled with a specially designed solid packing material, and a multi-media catalyst is compounded inside the packing material. When the odorous gas passes through the packing layer under the action of the induced draft fan and comes into full contact with the liquid phase compound oxidant sprayed out in a divergent mist through a specially designed nozzle on the surface of the solid packing, and under the catalytic action of the multi-media catalyst, the pollution factors in the odorous gas are fully decomposed. Scope of application: It has a wide range of applications, especially suitable for treating large volume, medium to high concentration exhaust gases, and has a good removal rate for hydrophobic pollutants. Advantages: Small footprint, low investment, and low operating costs; Easy to manage, ready to use. Disadvantages: Resistant to impact loads, not easily affected by changes in pollutant concentration and temperature, requiring a certain amount of medication consumption.

low temperature plasma

Low temperature plasma is the fourth state of matter after solid, liquid, and gas. When the applied voltage reaches the ignition voltage of the gas, gas molecules are broken down, producing a mixture including electrons, various ions, atoms, and free radicals. During the discharge process, although the electron temperature is high, the temperature of heavy particles is low, and the entire system exhibits a low-temperature state, hence it is called low-temperature plasma. Low temperature plasma degradation of pollutants utilizes the interaction between high-energy electrons, free radicals, and other active particles with pollutants in exhaust gas, causing pollutant molecules to decompose in a very short period of time and undergo various subsequent reactions to achieve the goal of pollutant degradation.

Low temperature plasma air purification equipment can significantly control pollutants such as VOCs, odorous gases, odor gases, oil fumes, dust, and can also be used for disinfection and sterilization. Low temperature plasma technology is a new purification process that does not require any additives, does not produce wastewater or waste residue, and does not cause secondary pollution.