The most difficult thing to deal with in the exhaust gas treatment of the setting machine is the volatile organic waste gas. In the existing exhaust gas treatment of the setting machine, VOCs are often the "missing piece" of enterprises and environmental protection departments. There is no corresponding policy and regulation in the printing and dyeing industry. The emission of organic waste gas is limited. With the development of social economy and the enhancement of people's environmental protection awareness, people have put forward higher requirements for environmental quality, so the treatment and purification of organic waste gas is imperative. There are two main types of organic waste gas treatment methods : one is the recovery method. The recovery method is to separate volatile organic compounds ( VOCs ) using selective adsorbents and selective permeation membranes at a certain temperature and pressure through physical methods, including activated carbon adsorption, pressure swing adsorption, condensation and Biofilm method, etc. The other is the elimination method. Elimination method is to use light, heat, catalyst and microorganisms to convert organic matter into water and carbon dioxide through chemical or biological reaction, mainly including thermal oxidation, catalytic combustion, biological oxidation, corona method, plasma decomposition method, photolysis method, etc. .
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