VOCs industrial waste gas treatment method

Abstract

The invention belongs to the technical field of exhaust gas treatment, in particular to a VOCs industrial waste gas treatment method; the method comprises the steps of: placing an exhaust gas collection pipe in a place where the concentration of exhaust gas is large in a painting workshop; communicating the exhaust gas collecting pipe and VOCs processing equipment; turning on a fan in the paintingworkshop to flow the exhaust gas in the painting workshop; extracting the exhaust gas in the painting workshop by the VOCs exhaust gas treatment equipment, and treating the exhaust gas; and detectingthe treated exhaust gas, and discharging the exhaust gas after reaching standards; the VOCs exhaust gas treatment method is improved by the VOCs exhaust gas treatment equipment, the catalytic effectof a catalyst in a photocatalytic method or a plasma method can be improved by removal of dust in the exhaust gas, and the treatment effectiveness of VOCs in the painting work shop can be improved.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment, in particular to a method for treating VOCs industrial waste gas. Background technique [0002] When painting in the painting workshop, the air in the spray booth contains a large amount of dust and VOCs exhaust gas. These exhaust gases are very harmful to the human body. The treatment of exhaust gas in the paint workshop is mainly to reduce the emission of exhaust gas and control the exhaust gas. Governance takes place in two ways. [0003] A recently developed method includes the use of photocatalysis to treat indoor VOCs exhaust. The method of using photocatalysis to treat pollutants can use clean energy such as sunlight, so it has the advantages of environmental friendliness and energy efficiency. Another method developed recently includes the use of plasma to treat VOCs exhaust gas, that is, to generate a large number of high-energy electrons and active particles such as O , OH ...

AI Technical Summary

Problems solved by technology

However, whether it is to use photocatalytic method to treat VOCs exhaust gas or plasma method to treat VOCs exhaust gas, a catalyst is required, but the VOCs exhaust gas in the painting workshop contains a lot of dust, and too much dust will affect the photocatalytic method and plasma method. The catalyst activity in the catalyst, some dust will directly cover the catalyst, which seriously affects the catalytic effect of the catalyst. The traditional method is to wash the exhaust gas with water to remove the dust in the exhaust gas, but washing the exhaust gas with water will make part of the exhaust gas dissolve in water, and produce There is a large amount of wastewater to be treated, and multiple wastewater treatment processes are added. Therefore, how to remove the dust in the exhaust gas under dry conditions to improve the catalytic effect of the catalyst in the photocatalytic method and plasma method, and to better remove VOCs in the exhaust gas is a question worth thinking about

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