Activated carbon is a porous material containing carbon, it has a highly developed pore structure, is a very good adsorbent, activated carbon adsorption area per gram equivalent of eight tennis courts much more. By its adsorption is physical adsorption and chemical adsorption of force to achieve power. The composition of the material in addition to carbon elements, still contain a small amount of hydrogen, nitrogen, oxygen and ash, the structure of carbon was deposited by the formation of six-ring material. Because of the irregular arrangement of six carbon ring, resulting in microporous activated carbon with high surface area size and characteristics. 
 Activated carbon-bearing material can be made of many kinds, these substances, including wood, sawdust, coal, coke, peat, lignin, stone, hard shell, sugar pulp, bone, lignite, petroleum residues and so on. Including coal and coconut shell activated carbon has become the most commonly used raw materials. Manufacture of activated carbon is basically divided into two processes, first process involves dehydration and carbonization, the raw material heated at 170 to 600 ℃ temperature drying, and to about 80% of the original organic matter charring. The second process is the activated charcoal, which is activated by the agent with water vapor and carbon reaction to complete, mainly produced in the endothermic reaction in the composition of the CO and H2 gas mixture for burning charcoals heated to the appropriate temperature (800 to 1000 ℃), all of which can be decomposed by burning the material, the resulting well-developed porous structure and huge specific surface area, which has strong adsorption capacity. 
 Pores of activated carbon by pore size can be divided into three categories. Large hole: radius of 1000 - A. Transition pore: radius of 20 - 1000 A. Pore: radius - 20 A. 
 Activated carbon made from different materials with different pore sizes. From the coconut shell activated carbon system has the smallest pore radius. Wood activated carbon generally have the largest pore radius, they are used to adsorb larger molecules, and almost exclusively in the liquid phase. Water treatment in urban areas to use the first type of granular activated carbon is made of wood, known as charcoal. Coal activated carbon pore size in between. 
 Activated Carbon in coal, lignite, anthracite activated carbon with more than a transitional pores and larger average pore size, so the water can be removed and organic macromolecules. 
 Generally used in water treatment activated carbon, its surface area is not necessarily too large, but the transition should have more and larger average pore diameter. 
 Activated carbon Features: 
 Coal columnar pore structure of activated carbon with a reasonable, good adsorption properties, high mechanical strength, easy to repeated regeneration, low cost, high efficiency air purification function of active carbon with active carbon to create a comfortable and clean environment, health care is more activated carbon, activated carbon not see the air filter, activated carbon is a physical adsorption and chemical decomposition of its combination of features, coal activated carbon column can be used for toxic gas purification, decomposition of formaldehyde in the air, ammonia, benzene, soot and other harmful gases and a variety of odors, especially carcinogenic aromatic substances, activated carbon has a very strong adsorption capacity, is a commonly used adsorbent, catalyst or catalyst carrier, it is easy and full of harmful gases in the air contacts using its own carbon adsorption pore inhalation of harmful gas molecules hole, the air fresh and clean air. High water can also be used for city cleaning, removal of residual chlorine, odor; gas processing, industrial and domestic water purification, solvent recovery and so on. Also the high water, artificial mineral water production process advanced purification materials; large-scale pre-boiler feed water and other harmful impurities removal of COD can improve boiler efficiency and extend the life of the boiler; can effectively remove the water of COD, color, odor and other toxic substances. Large particles can be filled with activated carbon filters and purify the air. Therefore, the family can not do without activated carbon partner. 
 Application of activated carbon: 
 Activated carbon is widely used in all aspects of industrial and agricultural production, such as the petrochemical industry, E-sweetening (refined sweetening), ethylene desalted water (refined material fill), catalyst (palladium, platinum, rhodium, etc.), water purification and sewage treatment; power industry and the protection of water treatment plants; chemical industry and chemical catalyst carrier, gas purification, solvent recovery and oil and other bleaching, refining; food industry beverage, wine, liquor and food MSG refining, bleaching; gold industry gold extraction, the end of fluid recovery; environmental protection industry, sewage treatment, waste management and hazardous gases, gas purification; and related industries Filter, wood flooring moisture, smoke flavor, automotive fuel evaporative emission control, all kinds of liquid impregnating agent preparation and so on. Activated carbon in the future there will be an excellent and broad prospects for the development of sales markets.