Activated carbon as an environmentally friendly product to improve air quality has basically been deeply rooted in the hearts of the people. Since it is so good, can it be maintained for a long time, or has a shelf life? Let’s talk about how long the effect of activated carbon can last.
Relevant sources said that activated carbon generally absorbs saturation every 2 to 3 months, and needs to be exposed to the sun once to drive out the adsorbed moisture and odors and maintain its good function. Otherwise, long-term storage has no effect.
Let me talk about the characteristics of activated carbon:
- Activated carbon is an adsorbent with a porous structure and strong adsorption capacity. Therefore, when placed in the air, it can be used as an adsorbent for harmful gases to purify the air and remove harmful gases;
- The adsorption capacity of activated carbon, that is, the adsorption capacity is limited, so the more activated carbon you put in the car, the better the effect. It is recommended to use bamboo charcoal bags.
- When the activated carbon adsorption reaches saturation and reaches the adsorption capacity, it will no longer adsorb, so it is necessary to regenerate the activated carbon frequently;
- The adsorption capacity of activated carbon is related to temperature. The adsorption capacity is large at low temperature and easy to adsorb; at high temperature, it is easy to desorb.Therefore, the activated carbon can be exposed to the high temperature of sunlight for several hours to desorb the adsorbed harmful gas. This is the regeneration treatment of activated carbon. After being regenerated and then put into the car, it can continue to remove harmful gases in the air in the car.
Because of the above-mentioned special properties of activated carbon, activated carbon has been widely used in life and industry:
Nutshell activated carbon is widely used in the deep purification and gas phase adsorption of domestic water, industrial water and wastewater, such as petrochemical, power plant, food and beverage, sugar and wine, medicine, fish farming and other industries water purification treatment, can effectively absorb water Free chlorine, phenol, sulfur and other organic pollutants, especially the precursors of mutagenic substances (THM), can filter out impurities and odors.
Coconut shell activated carbon can also be used for workshop tail gas purification, solvent filtration, decolorization, purification, etc., gas desulfurization, petroleum catalytic reforming, gas separation, pressure swing adsorption, air drying, food preservation, gas masks, solvent carriers, organic solvent recovery; Precious metal refining; catalyst and catalyst carrier in the chemical industry.