The regeneration methods of coconut shell activated carbon
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Coconut shell activated carbon has a small molecular pore structure. When activated carbon is placed in water, the air discharged when it adsorbs water molecules will produce many small blisters, which are densely floating to the water surface. activated carbon gold extraction The pore structure of coal-based activated carbon is controllable, and the bubbles produced are also different in size.
The deodorization effect of activated carbon was used in hundreds of water plants in the 1940s. Use this as the boundary between the second stage and the third stage of the history of activated carbon application.
Wet oxidation regeneration method: In addition to their own drawbacks, traditional activated carbon regeneration technology usually has three common defects: (1) The loss of activated carbon during the regeneration process is often large; (2) The adsorption capacity of activated carbon will be significantly reduced after regeneration; (3) Exhaust gas will cause secondary air pollution. Therefore, people either improve the traditional regeneration technology or explore new regeneration technology.
Solvent regeneration method: The solvent regeneration method uses the phase equilibrium relationship between activated carbon, solvent and adsorbate. By changing the temperature, the pH value of the solvent and other conditions, the adsorption equilibrium is broken and the adsorbate is desorbed from the activated carbon.
Flux regeneration method: The solvent regeneration method is more suitable for those reversible adsorption, such as the adsorption of high concentration, low boiling point organic wastewater. wanyang activated carbon It is highly pertinent, and often a solvent can only desorb certain pollutants. However, there are many types of pollutants in the water treatment process, and the application range of a specific solvent is narrow.