What are the printing and dyeing waste gas treatment equipment

The content of printing and dyeing exhaust gas is mainly particles, sulfide, nitrogen compounds, carbon monoxide, organic matter, etc., in the process of exhaust gas treatment to take into account the complexity and diversity of dyes, inks and odorous gases, as well as dust removal, sterilization, disinfection of the comprehensive and so on, the following with the Everest blue editorial to learn about the printing and dyeing exhaust gas treatment equipment which are.

Printing and dyeing waste gas treatment absorption equipment

Selection of suitable liquid absorber to remove gas pollutants, such as water to add acid and alkali liquids, surfactants, etc. made of absorbent, as well as pollutants to be absorbed so as to be purified. Usually the equipment used is packing tower or spray tower.

Printing and dyeing waste gas treatment adsorption equipment

The main use of porous adsorbent material to adsorb the pollutants in the waste gas, adsorbent variety. Furniture industry z commonly used adsorbent is activated carbon, with the function of non-restrictive, anti-erosion and other advantages, can be used to absorb large air volume, low concentration of organic waste gas, the shortcomings of the need to replace the adsorbent on a regular basis.

Printing and dyeing waste gas treatment condensation equipment

Condense the waste gas directly or condense after adsorption and concentration, separate and recover the valuable organic matter, mostly used for high concentration organic waste gas treatment with recovery value.

Biological method of printing and dyeing waste gas treatment

The waste gas will be contacted with microorganisms, and the microorganisms will capture the degradation and oxidation, so that the pollutants will be decomposed into harmless inorganic substances. Because the organic waste gas components in the water solubility is low, the gas-liquid phase transfer there is a large resistance, microbial treatment efficiency is low.

Printing and dyeing waste gas treatment photocatalytic degradation equipment

The use of catalyst photocatalytic activity, oxidation of target pollutants adsorbed on the surface of the catalyst, suitable for treatment of low concentration, large air volume gas. But the photo-oxidation degradation product should be hydrophilic vocs, forming secondary pollution, processing efficiency needs to be improved.

Printing and dyeing waste gas treatment combustion equipment

Combustion and oxidation of organic matter in the waste gas, completely converted to carbon dioxide and water, combustion method of initial investment and high operating costs.

These are more commonly used printing and dyeing waste gas treatment equipment, if the purification requirements are relatively high, you can also use the above combination of several types of equipment, such as: absorption equipment + adsorption equipment + combustion equipment, etc., such as the more commonly used spray tower + activated carbon adsorption and desorption + catalytic combustion is a combination of the above, which is very widely used.