Views: 1 Author: Site Editor Publish Time: 2023-10-17 Origin: Site
Granular Activated Carbon (GAC) is usually an organic carbon filtration media (wood, coconut shell or coal mine) used for water purification, often in fixed bed applications.
This article will delve into the preparation of granular activated carbon (GAC) .Its unique physical properties, and the reasons behind its widespread application in air purification, water treatment, and other fields.
Granular activated carbon, commonly known as GAC, is a high-purity carbon characterized by a vast surface area, suitable for numerous liquid-phase and gas-phase purification applications.
The particle
size of granules typically ranges from approximately 0.2 mm-0.5 mm, and the choice of “mesh size” depends on the material’s intended final use.
Activated carbon granules is a porous adsorption medium with an extremely high internal surface area.
The granules are generally made from materials such as coconut shells or coal. We primarily offer coal based granular activated Carbon and coconut shell granular activated carbon.
The selection of different raw materials may result in slight differences in purification performance, so the choice depends on specific application requirements.
Usually, the manufacturing of granular activated carbon is roughly divided into: raw material screening, crushing, carbonization, activation, crushing and screening and packaging.
Granular activated carbon, due to its high density, large surface area, low porosity, and the formation of large-diameter channels, reaching up to several tens of nanometers or more, can effectively remove substances from water, air, and waste gases.
The carbon particles are uniformly activated not only externally but also throughout the entire particle, resulting in excellent adsorption performance and consistent adsorption kinetics.
It exhibits high mechanical strength, reducing the generation of fines during backwashing and hydraulic conveying processes.
Granular activated carbon for water treatment is mainly used to remove pollutants in scenarios such as drinking water, industrial wastewater, sewage treatment, and swimming pools, including volatile organic compounds (VOCs), disinfection by-products (DBP), chlorinated compounds, chloramines, hydrocarbons, heavy metals, colloids, toxins, oils, and many other pollutants.
Utilized for removing impurities such as color and odor from food liquids, syrups, organic acids, amino acids, vitamins, alcoholic beverages, and glycerol.
Provides high iodine 6-12, 8-16 mesh coconut shell granular carbon for quick and efficient recovery of precious metals, releasing gold.
Offers activated carbon for high-end air purification or various gas solvent recovery, such as gases like benzene and toluene.
Research and production of activated carbon as a catalyst and carrier have gained widespread industrial applications, serving as a carrier for catalysts degrading hydrogen sulfide and precious metal catalysts.
Activated carbon granules can remove pollutants in the air, such as toxic volatile organic compounds (VOCs) from air emission sources.
Used for the outstanding adsorption performance in purifying liquid natural gas.
