How to choose activated carbon?

Activated carbon is a very fine carbon particle with a large surface area, and there are even finer pores in the carbon particles - capillaries. This kind of capillary has strong adsorption capacity, and because of the large surface area of carbon particles, it can fully contact with gas (impurities). When these gases (impurities) meet the capillary and are adsorbed, they play a role in purification. The research on the surface area of activated carbon is very important. The detection data of the specific surface area of activated carbon can only be true and reliable if the results detected by the BET method are used. There are many domestic instruments that can only be tested by the direct comparison method. At this stage, the specific surface area test at home and abroad adopts the multi-point BET method uniformly, and the specific surface area measurement standards developed at home and abroad are all based on the BET test method.

A good activated carbon must have the characteristics of large adsorption capacity, long service life, high mechanical strength, low ash content, easy washing, and good water quality. Harmful substances such as chlorine, phenol, mercury, lead, arsenic, chlorides, detergents, pesticides, fertilizers and other pollutants have a high removal rate.

High-quality charcoal and wood chips are selected as raw materials, and refined by physical and chemical methods. The product is black powder, non-toxic and tasteless, with developed pores, and does not contain dissolved substances in water that have adverse effects on water quality. It has the advantages of strong adsorption capacity, good decolorization effect and fast filtration speed. It can effectively adsorb substances with poor molecular structure in the liquid phase, and is widely used in various types of sewage such as domestic sewage, chemical sewage, medical sewage and urban sewage, especially for decolorization, deodorization, and COD reduction of sewage. Effect.