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VOCs governance why packaging printing lying gun

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in the production process of packaging and printing industry, there will be a large amount of volatile emissions of organic gases such as ethanol, ethyl acetate, butyl acetate, propyl acetate, toluene and xylene. The waste gas from printing workshop mainly consists of toluene, benzene, ethyl acetate, butyl acetate, No. 200 solvent oil, ethanol, butanol, etc The ink used mainly contains pigment, resin, solvent, auxiliary agent, etc. the waste gas is mainly produced in the inking, drying and compounding process. The volatile organic solvent is the main source of waste gas pollution. Therefore, it is called the highlight of VOCs governance
printing waste gas has complex components, heavy odor, flammability and explosion, and the waste gas will cause great harm to the surrounding environment after being discharged without purification. At the same time, due to the complex composition of VOC and different characteristics of various pollutants, any single VOC control method is affected by its removal performance, investment and operation cost and scope of application. In order to improve the removal rate, reduce the cost and reduce the secondary pollution, it is also necessary to optimize various control technologies and develop the combination technology of different control methods. Biological method is a process of biodegradation of VOCs by microbial metabolism. It is mainly suitable for the treatment of organic waste gas with low concentration, atmospheric volume and suitable for biodegradation. Biological treatment of organic waste gas has the advantages of simple equipment, low operation cost, simple operation, high purification efficiency and no secondary pollutants. However, biological method has high requirements for the intake concentration and properties of organic waste gas, and also puts forward high requirements for biological colonies and fillers. Therefore, it has not been widely used at present.

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