ACTIVATED CARBON » Discussions


What are the uses and types of activated carbon

  • Carrie Ge
    Host
    December 2, 2020
    Activated carbon is divided into honeycomb activated carbon, columnar activated carbon, special activated carbon for sewage treatment, etc. according to the source of raw materials.powdered activated carbon manufacturer According to the appearance, it can be divided into powder, granule, irregular granule, round columnar, etc.; its application is very wide, and the application involves almost all Part of the national economy and people’s daily life, such as water purification, gold extraction, sugar liquid decolorization, medicine injection, blood purification, air purification, human safety protection, etc.



    Activated carbon is a hydrophobic adsorbent made from carbon-containing materials as raw materials and carbonized and activated at high temperatures. Activated carbon contains a large number of micropores and has a huge specific surface area, which can effectively remove color and odor, and can remove most organic pollutants and some inorganic substances in the secondary effluent, including some toxic heavy metals.



    Factors affecting the adsorption of activated carbon are:



    1 Characteristics of activated carbon;

    2 The characteristics and concentration of the adsorbate;

    3 PH value of wastewater;

    4 Suspended solid content and other characteristics;

    5 Contact system and operation mode, etc.



    Activated carbon can effectively adsorb chlorinated hydrocarbons, organophosphorus and carbamate pesticides, as well as phenyl ether, n-nitrochlorobenzene, naphthalene, ethylene, xylenol, phenol, DDT, aldrin, alkylbenzene Sulfonic acid and many esters and aromatic compounds.



    The secondary effluent also contains organic matter that is not adsorbed by activated carbon, such as intermediate protein degradation substances, which are more difficult to be adsorbed by activated carbon than the original organic matter. The removal capacity of activated carbon for THMS is low, only reaching 23-60%.www.granular-activated-carbon.com



    The activated carbon adsorption method is combined with other treatment methods, and the ozone-activated carbon method, the coagulation-adsorption activated carbon method, the Habberer process, the activated carbon-diatomite method, etc. have emerged, which significantly prolongs the activated carbon adsorption cycle, reduces the amount, and reduces the treatment effect and scope. substantial improvement.