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What is activated carbon and how does it work?


Activated carbon has the characteristics of adsorption of harmful gases and soluble substances, is widely used in life and production. Carbon-containing organic materials can be used as raw materials for activated carbon, such as coal, wood, fruit shells, coconut shells, walnut shells, apricot shells, date shells, etc. , processed through a series of processes. So, what exactly is the role of activated carbon?

Activated Carbon Action 

1, activated carbon in the air adsorption capacity, activated carbon in the air adsorption capacity. 

The removal of formaldehyde using activated carbon is utilizing the adsorption capacity of the air. 

The adsorption capacity of activated carbon is related to the value of tetrachloromethane carbon (CTC) adsorption. 

The higher the tetrachloromethane value of CTC, the higher the adsorption capacity. 

The adsorption capacity of activated carbon (ml/cm3) : H 2:4.5O 2:35N 2:11CL 2:494co 2:97

2. The adsorption capacity of activated carbon in liquid

the adsorption capacity of activated carbon in liquid, the higher the adsorption value of iodine and methylene blue, the stronger the adsorption capacity of activated carbon in liquid. Industrial Water and waste water, tap water purifier is the use of activated carbon in the liquid adsorption capacity. 

The adsorption properties of activated carbon include iodine value, butane value, ash powder, moisture, hardness, tetrachloromethane value, molasses value, bulk weight, particle density, methylene blue, abrasion value and so on. The commonly used adsorption indexes are iodine adsorption value, tetrachloromethane (CTC) adsorption value and methylene blue adsorption value. Among them, iodine adsorption value is used to indicate the adsorption capacity of activated carbon for liquid substances, methylene blue adsorption value is used to indicate the decolorization capacity of activated carbon. 

The role of the world's activated carbon is used to make gas masks, and later the role of activated carbon is mainly used in the water plant with activated carbon deodorization. Activated carbon is now used in a wide range of applications, including sugar bleaching, military gas masks, cigarette filters, air purifier, water treatment, drinking water purification, detoxification, sobriety, and treatment of radioactive contamination, reduce pesticide residues in soil, conditioning soil properties, control indoor formaldehyde, fresh vegetables and so on. Activated carbon works so well because:

Activated carbon efficacy 

1, activated carbon can absorb all kinds of harmful substances

Different materials and uses of activated carbon, its internal pore size is not the same. In general, the quality of coconut shell activated carbon adsorption of harmful substances can approach or even reach its own quality. Activated carbon adsorption of harmful substances characteristic activated carbon for physical adsorption principle, in the process, rely on air as a medium, so it is defined as passive air purification materials.

2. The activated carbon has its own unique pore structure

Activated carbon (AC) is a kind of microcrystalline carbon material which is mainly made of carbon-containing materials with black appearance, well-developed internal pore structure, large specific surface area and strong adsorption capacity. Activated carbon material in a large number of invisible micro-pores, 1 gram of activated carbon material in the micro-pores, the surface area can be as high as 800-1500 square meters after its expansion, special use of higher. That is, in a grain-size activated carbon particle, the internal surface area of the micropores may be the size of a living room area. It is these highly developed pore structures, such as the human capillary, that give activated carbon its excellent adsorption properties.

3. The interaction force between activated carbon molecules

Also known as van der Waals gravity. Although the speed of molecular motion is affected by temperature and material, but it is always in the micro-environment movement. Due to the attraction between the molecules, when a molecule is trapped into the pores of the activated carbon, due to the attraction between the molecules, more molecules will be attracted, until the pores in the activated carbon are filled. 

The service life of activated carbon depends on the weight of hazardous substances in the environment and the frequency of entrustment. Ordinary household air of harmful substances less than the use of activated carbon, as long as the use of activated carbon after a period of time in the sun exposure, can continue to reuse, extend the life of activated carbon!JS Activated carbon