Organic waste gas treatment device

Abstract

The invention provides an organic waste gas treatment device which comprises a reaction cavity, wherein the reaction cavity is provided with an air inlet and an exhaust port at two ends in the left-right direction respectively, and the reaction cavity is divided into three reaction zones including a photo-oxidation zone, an ozone catalytic oxidation zone and a bio-trickling zone communicated with each other in sequence from the air inlet to the exhaust port. The organic waste gas treatment device for treating organic waste gas by adopting a photo-oxidation and biodegradation coupling method improves the organic waste gas treatment efficiency, realizes deep treatment, avoids the problem that organic small molecular intermediate products with toxicity are produced due to low mineralization degree of organic pollutants when organic waste gas of volatile organic compounds (VOCs) is treated by a single technology, is suitable for treating the organic waste gas of most industrial VOCs, and is beneficial to solving the urgent problem of atmospheric pollution at present in China.

Description

technical field [0001] The invention relates to the technical field of air pollution control. Specifically, the invention relates to a waste gas treatment device, in particular to an organic waste gas treatment device for treating VOCs. Background technique [0002] At present, regional air pollution problems characterized by fine particulate matter (PM2.5) occur frequently in China. Studies have shown that volatile organic compounds (Volatile Organic Compounds, VOCs) in organic waste gas are an important leading factor for the formation of PM2.5. Promoting the treatment of organic waste gas, especially VOCs, is very conducive to solving the current urgent air pollution problem in my country. [0003] The types of VOCs include alkanes, alkenes, benzene series, halogenated hydrocarbons, aldehydes, ketones, alkyd esters, organic amines, organic sulfur, etc. VOCs have the largest emission and have caused serious pollution to the environment. At present, industrial VOCs waste ...

AI Technical Summary

Problems solved by technology

However, the photocatalyst is easily deactivated, and the photolysis efficiency decreases after the UV lamp is fouled. Under the action of a strong oxidizing system, the macromolecular VOCs are easily broken or ring-opened to form aldehydes, ketones, acids or esters with low mineralization. , some toxic small molecule intermediates, and ozone (O 3 ) by-products, these problems restrict the application and promotion of photocatalytic oxidation technology in the field of VOCs treatment

[0005] Practice has proved that a single VOCs waste gas treatment technology can no longer meet the increasingly stringent emission standards. The organic coupling of a single technology has developed a new type of combined VOCs treatment technology that is cost-effective and widely applicable, which has great application prospects.

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