Granular activated carbon is widely used in chemical, food, medical, national defense and other fields due to its large specific surface area, developed pore structure, high mechanical strength, acid and alkali resistance, and stable properties. Especially in environmental protection issues, activated carbon has important research significance as a gas and liquid phase adsorbent for treating air and water pollution. Granular activated carbon adsorbent utilizes the physical adsorption, chemical adsorption, and oxidation catalysis properties of activated carbon to remove pollutants from water and the atmosphere.
As an efficient adsorbent for clean energy, granular activated carbon has provided significant economic benefits for the storage and transportation of clean energy such as natural gas and hydrogen. At the same time, granular activated carbon is widely used for gas purification: unpleasant odors in public or residential places, such as the smell of restaurant food, the smell of paper and sweat in libraries and offices, can be purified by granular activated carbon to purify indoor air; Industrial plants, such as food processing, pharmaceutical manufacturing, or precision instrument rooms, contain smoke, dust, and irritants in the air, which can affect the health of workers or cause oxidation and corrosion of precision instruments. Granular activated carbon can be used for purification and impurity removal; The gases emitted from coal acid plants, chemical plants, and automobile exhaust contain various organic solvents, inorganic and organic sulfides, hydrocarbons, organic mercury compounds, and other harmful components. Direct emissions will seriously pollute the atmosphere and affect human health. Granular activated carbon can be used for efficient adsorption and recovery before discharge; Using activated carbon to purify the air in the refrigeration room and fruit warehouse, achieving circulating ventilation to reduce ethylene concentration and extend the storage period of fruits; Nuclear power plants emit radioactive gases such as krypton and xenon, which can cause harm to human health such as cancer and plant death. They must be adsorbed clean with activated carbon before being discharged; In addition, granular activated carbon is widely used in military production of gas masks and industrial respirators.
In liquid-phase adsorption applications, granular activated carbon is widely used in fields such as drinking water purification, industrial wastewater treatment, brewing, decolorization, deodorization, desiccant, solvent recovery, etc. The increasingly severe water pollution not only damages aquatic ecosystems, but also poses a significant threat to human health and socio-economic development. Granular activated carbon has the advantages of strong adsorption performance, easy regeneration, and repeated utilization. It can remove substances and organic compounds that produce odors in water, such as benzene, phenol, chlorine, pesticides, detergents, trihalomethanes, etc. In addition, heavy metal ions such as silver, cadmium, copper, mercury, antimony, arsenic, bismuth, tin, lead, and chromate can also be effectively removed.
Granular activated carbon can also be used as a catalyst and its carrier, and has been widely applied in catalysis and electro-chemistry, such as catalyzing the degradation of ozone, serving as a carrier for precious metal catalysts, and making supercapacitors.
https://www.naturecarbon.com/coal-based-activated-carbon/activated-charcoal-for-drinking-carbon.html
