A method for recovering waste gas during regenerative process of filtering adsorption material

Abstract

A method for recovering the exhaust gas in the regenerative process of the filtering and absorbing material comprises the following steps: A) doing dust removing treating to the exhaust gas; B) doing gas-liquid separating treating for the gas which is treated by the process A; C) using the gas treated by the step B as the fuel; D) reclaiming the tar water generated in the step A and B to do oil-water separation treating, the generated clear water is reused and the generated tar oil is reclaimed, and the generated tar slag is used as the boiler fuel; wherein, the filtering absorbing material is prepared using the anthracite, lean coal, black-jack, charred coal, fat coal, gas coal, candle coal, brown coal, coke, blue carbon and breeze as raw material. In the course of using the filtering adsorbing material to regenerate, the organic matter in the filtering and adsorbing holes volatilizes and decomposes at the high temperature condition, forms the mixed gas which is composed of methyl hydride, ethane, ethane, tar oil steam, carbon dioxide and carbon monoxide, etc., the mixed gas is reclaimed as the boiler fuel, not only can avoid the air pollution caused by the discharging of the harmful gas but also can save the energy.

Description

technical field [0001] The invention relates to a waste gas recovery method in the regeneration process of filter adsorption materials, in particular to a waste gas recovery method used in the regeneration process of filter adsorption materials for treating industrial waste water and urban sewage. Background technique [0002] At present, most urban sewage and industrial wastewater (especially industrial wastewater with large discharge volume) are treated by biochemical, anaerobic, aerobic, activated sludge, chemical agents and other methods. The above methods occupy a large area and consume high power , A large amount of sludge is produced during the treatment process, and it cannot treat wastewater that is difficult to biochemically such as high salt, high acid, and high COD content. There are many kinds of solid adsorbents currently used in water treatment, such as activated carbon, charcoal, bentonite, diatomaceous earth, calcium carbonate, slag, coke powder, slag, etc. ...

AI Technical Summary

Problems solved by technology

After a period of use, the filter adsorbent absorbs inorganic and organic matter in wastewater and sewage. These pollutants make the filter adsorbent hydrophobic and occupy the active lattice of the filter adsorbent. The continuous accumulation of organic matter makes the adsorption capacity of the filter adsorbent Gradually reduced, affecting the performance of the filter adsorbent

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