Progress in research of VOCs treatment technologies in painting industry
[Introduction]The painting industry produces a large amount of volatile organic compounds(VOCs),which not only pose a threat to human health,but also cause haze,photochemical smog,and greenhouse effect.Given the diversity of VOCs and the variance in their properties,selecting the appropriate technology is crucial for engineering applications.[Method]The advances in VOCs treatment technologies in the painting industry were summarized.The research focuses and application conditions of various treatment technologies were analyzed,providing a reference for the engineering application of VOCs treatment technologies.[Result]For VOCs with good water solubility and low biological toxicity,biological methods are recommended;for those with high flow rate and low concentration,concentration prior to treatment is advisable;for those with no recycling value,thermal oxidation is suitable;for low concentration and easily decomposable VOCs,plasma technology is preferred.[Conclusion]In engineering applications,the selection of treatment technology should be based on a comprehensive consideration of the types and concentrations of VOCs.
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