ACTIVATED CARBON » Discussions


Working principle of activated carbon: strong adsorption

  • Carrie Ge
    Host
    November 17, 2020
    Activated carbon is a kind of very fine carbon particles with a large surface area, and there are smaller pores in the carbon particles capillary. Because of the large surface area of carbon particles, the capillary can fully contact with gas (impurities). When these gases (impurities) come into contact with the capillary tube, they are absorbed and purified.



    It is very important to study the surface area of activated carbon. Only by using BET method can the specific surface area test data of activated carbon be true and reliable. granular activated carbon manufacturer There are many domestic instruments that can only do direct comparison method.



    A layer of equilibrium surface concentration is formed on the surface of activated carbon particles, and then the impurities of organic matter are absorbed into the activated carbon particles, and the adsorption effect is very high at the initial stage of use. However, as time goes on, the adsorption capacity of activated carbon will be weakened in varying degrees, and the adsorption effect will also decline. If the water quality in the aquarium is turbid and the organic matter content in the water is high, the activated carbon will soon lose its filtering function. Therefore, activated carbon should be cleaned or replaced regularly.



    The adsorption capacity of activated carbon is directly proportional to the contact time with water. The longer the contact time is, the better the water quality is. Note: filtered water should flow slowly out of the filter layer. New activated carbon in the first use should be washed clean, otherwise there is black water outflow.



    Before loading the activated carbon into the filter, 2-3cm thick sponge should be laid on the bottom and top of the filter to prevent algae and other large particles from penetrating into the filter. coconutactivatedcarbon.com After 2-3 months of use, if the filtering effect of the activated carbon decreases, the new activated carbon should be replaced, and the sponge layer should also be replaced regularly.