Activated carbon
Activated carbon is a substance whose main component is carbon and porous, and therefore has a large surface area, strong adsorption, and a chemical reaction occurs quickly. Activated carbon is a material that increases the surface area by using steam or chemicals on charcoal. It is widely used in water treatment facilities such as advanced water treatment and wastewater treatment. Explaining the process of making activated carbon using bamboo activated carbon as an example, When 1 ton of bamboo charcoal is carbonized, 300 kg of bamboo charcoal can be obtained. If 300 kg of char is activated again by steam activation method, 120 kg of activated carbon can be obtained. The specific surface area of the obtained bamboo charcoal is about 600 m 2 / g, and the specific surface area of the bamboo activated carbon finally obtained is 1200 m 2 / g, which is 6 times or more as large as that of general charcoal. The larger the specific surface area, the greater the amount that can be adsorbed and the longer the use, the better the performance.