Activated carbon separation

When it is found that this kind of activated carbon can not be adsorbed well to the substances to be separated, which leads to the failure of separation, the first kind of activated carbon can be used.Some of the adsorbed substances are concentrated on the surface of the activated carbon first, and then are adsorbed between atoms or molecules of the solid lattice, and some special substances are combined with the activated carbon molecules and are adsorbed.https://www.dxdcarbon.com/product/china-supplier-coconut-shell-activated-carbon-price-per-ton
When activated carbon on the water containing impurities adsorption, dissolved impurities in the water on the surface of activated carbon accumulation and adsorption, but also some of the adsorbed material due to molecular movement and left the surface of activated carbon, re-enter the water at the same time the phenomenon of desorption.
When adsorption and desorption are in a state of dynamic equilibrium, it is called adsorption equilibrium.Chemical activation process is characterized by low activation temperature (generally 400-600℃), easy to adjust the pore structure of the product.
However, there are also some disadvantages :(1) it is highly corrosive to equipment; (2) it pollutes the environment, etc., which makes the chemical method limited to a certain extent.https://www.dxdcarbon.com/product/china-supplier-coconut-shell-activated-carbon-price-per-ton
There are many researches on activation by adding H3P04 at home and abroad. In China, the development and research work of preparing activated carbon by using phosphoric acid method with wood chips as raw material has been carried out since the end of 1980s，It has been successfully put into industrial application in the 1990s，The mesopore (transition pore) structure of products produced by phosphoric acid activation method is well developed and has wide application fields.