Microwave activated carbon regeneration method and waste gas treatment device thereof

Abstract

The invention relates to a microwave activated carbon regeneration method and a waste gas treatment device thereof. According to the method, the activated carbon is radiated by using microwave, the power of the used microwave is 500W to 700W, and the ratio of the radiation time S to the mass g of the activated carbon is 45:1; the device comprises an activated carbon adsorption tower, wherein an air inlet is formed in the bottom of the activated carbon adsorption tower; an air outlet is formed in the top part of the activated carbon adsorption tower; a microwave desorber is arranged on the activated carbon absorption tower; the air inlet is connected with an air valve and an adjusting valve; and a purification unit is formed by the activated carbon adsorption tower, the microwave desorber and the air valve. By adopting the method and the structure, when the activated carbon absorption is accomplished, the activated carbon is regenerated by using microwave radiation, and the activated carbon has the advantages of being short in regeneration time, low in energy consumption, simple in equipment, high in regeneration efficiency, high in adsorption property recovery rate and the like, and secondary pollution is avoided.

Description

technical field [0001] The invention relates to the field of environmental protection technology, in particular to a microwave activated carbon regeneration method and a waste gas treatment device thereof. Background technique [0002] At present, activated carbon deodorant is recognized as a product with strong adsorption of harmful gases and odors in the world. It is also the most environmentally friendly material for indoor pollution control. It has no toxic side effects and secondary pollution. It is a porous material containing Carbon substance, its developed pore structure makes it have a large surface area, so it is easy to fully contact with toxic and harmful gases in the air. The strong adsorption force field around the pores of activated carbon will immediately suck the toxic gas molecules into the pores, and the adsorption of activated carbon Its unique molecular structure has a lot of pores inside the activated carbon, and the internal pores of each gram of activ...

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Problems solved by technology

[0002] At present, activated carbon deodorant is recognized as a product with strong adsorption of harmful gases and odors in the world. It is also the most environmentally friendly material for indoor pollution control. It has no toxic side effects and secondary pollution. It is a porous material containing Carbon substance, its developed pore structure makes it have a large surface area, so it is easy to fully contact with toxic and harmful gases in the air. The strong adsorption force field around the pores of activated carbon will immediately suck the toxic gas molecules into the pores, and the adsorption of activated carbon Its unique molecular structure has a lot of pores inside the activated carbon, and the internal pores of each gram of activated carbon can reach 500-1700 square meters if it is spread out. It is this unique internal structure that makes the activated carbon deodorant have excellent properties. Activated carbon has a wide range of applications, such as: decolorization of sugar, military gas masks, cigarette filters, air purifiers, water treatment in water plants, drinking water purification, detoxification, sobering up, control of radioactive element pollution, and reduction of residual pesticides in soil , adjust soil properties, control indoor formaldehyde, keep vegetables fresh, etc.; at present, due to the high cost of recycling activated carbon materials, most of them are discarded after use, thus causing secondary pollution. Now the main methods of regenerating activated carbon are: thermal regeneration method, wet method Oxidation regeneration method, solvent regeneration method, electrochemical regeneration method, supercritical fluid regeneration method, and these methods have disadvantages such as long regeneration time, high energy consumption, complex equipment structure, low regeneration efficiency and low recovery rate of activated carbon adsorption performance.

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