Regeneration method of low-carbon-loss activated carbon

Abstract

The invention discloses a regeneration method of low-carbon-loss activated carbon. Activated carbon is pretreated by iron or an iron compound as a catalyst at lower temperature, and the synergic actions of dilution and ultrasonic washing are performed; and thus, the regenerated activated carbon with high adsorptive value is obtained under the conditions of low energy consumption and mild conditions, and the carbon loss can be reduced to a large extent.

Description

technical field

[0001] The invention belongs to the field of regeneration of waste activated carbon, and in particular relates to a method for regeneration of activated carbon with low carbon loss. Background technique

[0002] Activated carbon regeneration refers to the process of removing the adsorbate adsorbed on the micropores of activated carbon by physical or chemical methods without destroying the original structure of activated carbon, and restoring its adsorption performance. At present, activated carbon regeneration methods mainly include ultrasonic regeneration method, electrochemical regeneration method, superfluid regeneration method, solvent regeneration method, oxidation regeneration method, thermal regeneration method, biological regeneration method, etc. Generally, the existing activated carbon regeneration methods have the following disadvantages: ①The loss of activated carbon is large; ②The adsorption capacity will decrease significantly after regeneration...