Principle of Exhaust Gas Absorption Tower Treatment

The basic principle is to use the contact between gas and liquid to transfer pollutants from the gas to the liquid, and then separate the clean gas from the contaminated liquid to achieve the goal of clean air.

After the particulate pollutants in the airflow come into contact with the washing solution, droplets or liquid films diffuse and attach to the particles in the airflow, or humidify the particles, allowing them to achieve separation and removal through the effects of gravity, inertia, and other forces. Gaseous pollutants are transported into the washing liquid through phenomena such as turbulence, molecular diffusion, and chemical reactions to achieve separation from the incoming gas. And chemical substances can be added to the washing solution to control the presence of odorous substances through absorption.

The exhaust gas is treated through a packed scrubbing tower using gas-liquid reverse absorption method, where the liquid is sprayed down from the top of the tower in the form of mist (or small water droplets). The exhaust gas is transported from the bottom of the tower (reverse flow) to achieve gas-liquid contact. This processing method can cool the exhaust gas temperature, regulate the gas, and remove particles. After undergoing defogging treatment, it is discharged into the atmosphere.

The "plasma method" uses a pulsed high-voltage high-frequency plasma power supply and a toothed plate discharge device to generate high-intensity, high concentration, and high electrical energy active free radicals. Within milliseconds, they instantly undergo redox reactions on harmful waste gas molecules, degrading most pollutants in the waste gas into carbon dioxide, water, and easily treatable substances. Plasma purification technology refers to the use of high-energy electrons, ions, free radicals, and neutral particles generated by pulsed corona discharge to repeatedly bombard odor producing molecules at a rate of 3 to 30 million times per second, deactivating, ionizing, and cracking various components in industrial waste gas to undergo a series of complex chemical reactions such as oxidation. The (OH -, O-2H+, O3) present in the plasma directly open the molecular bonds between organic gas molecules, decomposing harmful gases and ultimately emitting harmless substances such as CO2 and H2O. At the same time, a large number of negative ions are generated to freshen the air.

Functional Features

1. Has high purification efficiency and can simultaneously purify multiple pollutants;

2. The equipment has fire resistance and adopts automatic protection against overload, leakage, and power failure when opening the door.

3. Modular design and production of products, easy to install and maintain,

4. The equipment has a small volume, compact structure, mature technology, safety and stability

5. Low equipment investment, low operating costs, high purification efficiency, and no secondary pollution characteristics

6. Beautiful appearance, low wind resistance, low noise, strong corrosion resistance, and long service life.

Applicable venues

Low concentration organic and inorganic waste gases generated in the production processes of the electronics industry, semiconductor manufacturing, PCB manufacturing, LCD manufacturing, steel and metal industry, electroplating and metal surface treatment industry, acid washing process, dye/pharmaceutical/chemical industry, deodorization/chlorine gas neutralization, removal of SOx/NOx from combustion exhaust gas, other water-soluble air pollution in spray painting workshops, ink printing, spray painting workshops, chemical, mechanical processing, pharmaceuticals, rubber, food, printing and dyeing, papermaking, brewing, etc.