Method and device for treating pollutant and dust in gas

Abstract

The invention belongs to the environment protection field and discloses a method and a device for treating pollutant and dust in gas. The method is electrochemical means, solution-electrode is adopted as reaction system, gas is guided into the solution-electrode reaction system, and electrolysis reaction is carried out to degrade pollutant. The adopted electrode is a three-dimensional foam electrode with openings, and foam filler is filled between anode and cathode. The invention also provides a device applicable to the method, liquid cycle and effective distribution are adopted, so that gas and liquid can be effectively distributed and mixed on the surface of the three-dimensional electrode, effective area of reaction is greatly increased, and gas purification efficiency is improved.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a method and equipment for treating gas pollutants. Background technique [0002] With the development of industry and the engineering application of nanotechnology, the air is being polluted by more and more harmful gases and dust. There are many types of air pollutants, mainly including nitrogen oxides, sulfur oxides, suspended particulate matter, and carbon monoxide. Currently commonly used indoor air purification technologies have their own defects and deficiencies, and further research is urgently needed. [0003] Traditional industrial gaseous pollutant treatment methods include absorption method, adsorption method, condensation method and catalytic conversion method, etc. The defect of the traditional method is that the method itself limits the processing capacity of the equipment for different gases. The electrocatalytic method is a method of treating ...

AI Technical Summary

Problems solved by technology

However, these existing methods for electrochemically degrading organic gases belong to the primary battery model and use the relevant principles of fuel cells, so they all have the following defects: the operating temperature is high, and a temperature of several hundred degrees or even thousands of degrees is required to obtain better results. The treatment effect is high, the material requirements are high, and the energy consumption is large; expensive proton exchange membranes and a large amount of precious metal catalysts are required, and the equipment cost is high; the catalysts are easily poisoned and the environmental adaptability is not strong

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