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What is the activation process of activated carbon activated carbon
#1
Posted 21 December 2020 - 10:02 PM
Activated carbon is made by activating carbonaceous materials such as wood, coal and fruit shells under high temperature and hypoxia. It has a lot of micropores and a large specific surface area, usually 1 gram of activated carbon has a surface area of 500 to 1500 meters, so it has a strong physical adsorption capacity and can effectively adsorb organic pollutants in wastewater.
In addition, some oxygen-containing functional groups, such as carboxyl (-COOH), hydroxyl (-OH), and carbonyl groups, are formed on the non-crystalline parts of the activated carbon surface during the activation process. powder activated carbon manufacturer These groups make activated carbon have the performance of chemical adsorption and catalytic oxidation and reduction, and can effectively remove some metal ions in wastewater.
Activated carbon has a strong adsorption effect, which can adsorb tiny particles in industrial wastewater, make it precipitate and remove, and achieve the purpose of wastewater treatment. Activated carbon has a large number of tiny pores formed on its surface due to its porous structure. here The diameter of these pores is generally on the order of very small nanometers. This results in a large relative surface area of ​activated carbon and a large adsorption effect on external fine particles. .
In addition to putting activated carbon into industrial wastewater for autonomous adsorption, hot air can also be used to provide a steady stream of oxygen to the activated carbon during the adsorption process, so that the adsorption capacity of activated carbon will gradually increase under ventilation and heating conditions. The effect is more obvious.
In addition, some oxygen-containing functional groups, such as carboxyl (-COOH), hydroxyl (-OH), and carbonyl groups, are formed on the non-crystalline parts of the activated carbon surface during the activation process. powder activated carbon manufacturer These groups make activated carbon have the performance of chemical adsorption and catalytic oxidation and reduction, and can effectively remove some metal ions in wastewater.
Activated carbon has a strong adsorption effect, which can adsorb tiny particles in industrial wastewater, make it precipitate and remove, and achieve the purpose of wastewater treatment. Activated carbon has a large number of tiny pores formed on its surface due to its porous structure. here The diameter of these pores is generally on the order of very small nanometers. This results in a large relative surface area of ​activated carbon and a large adsorption effect on external fine particles. .
In addition to putting activated carbon into industrial wastewater for autonomous adsorption, hot air can also be used to provide a steady stream of oxygen to the activated carbon during the adsorption process, so that the adsorption capacity of activated carbon will gradually increase under ventilation and heating conditions. The effect is more obvious.
#2
Posted 05 January 2021 - 08:47 PM
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#3
Posted 01 March 2021 - 09:55 AM
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