Activated carbon

The regeneration of activated carbon is either by stripping or by desorption. It seems there’s no good way for regeneration; usually, it is sold to manufacturers for the recycling of activated carbon, so that they can carry out the regeneration process. After all, manufacturers are professionals in this field, which saves the need for one to install their own processing equipment – including devices for regeneration and exhaust gas treatment ；

Does it refer to high-pressure steam purging and pressure swing distillation? It’s impossible to do this without a steam source; the analyzer also lacks a vacuum pump and pressure-resistant devices. Could the explanation for these two methods be more detailed? Are there any other methods?

Without knowing the market situation, logical reasoning suggests that since the amount of activated carbon used to treat river water is large and its quality is poor, there is no need to install one’s own regeneration equipment. Dispose of the waste

Perform backwashing, or depending on what substances are present in the river water, use reactions to carry out backwashing.

Use steam for purging; check what material the activated carbon is made of, as prices can vary significantly. There is also the issue of quantity.

Backwash first, then regenerate with steam.

Activated carbon used in general water treatment is difficult to regenerate simply on-site. If it is adsorbed by gaseous VOCs, it can be desorbed and regenerated through vacuum pumping or hot air purging. However, the regeneration of activated carbon used for water treatment requires thermal regeneration; otherwise, if acid or alkali is used for regeneration, first, the results are not good, and second, dealing with the wastewater resulting from acid or alkali regeneration is also troublesome. If you use a large amount of carbon, you can find a factory specialized in activated carbon regeneration to carry out the regeneration process. If the amount used is small, it’s not necessary. Furthermore, if the purchase price is 7,000 per ton or less, the quality of the new carbon should be average, in which case there is no need nor possibility for regeneration. This is because the properties of regenerated carbon generally decrease compared to those of new carbon, especially the iodine value and hardness; furthermore, the worse the hardness of the carbon, the greater the loss during regeneration.

Replace it directly with activated carbon once it becomes ineffective. Some disintegrate directly and are considered consumables