The Adsorption Process: Due to the presence of unbalanced and unsaturated molecular attractions or chemical bond forces on the solid surface, when this solid surface comes into contact with a gas, it can attract gas molecules, causing them to concentrate and remain on the solid surface—a phenomenon known as adsorption. By utilizing the adsorption capacity of the solid surface, the waste gas is brought into contact with a porous solid material with a large surface area. The pollutants in the waste gas are adsorbed onto the solid surface, separating them from the gas mixture, thereby achieving purification.

Activated Carbon Introduction: Activated carbon is an amorphous, porous carbon material that comes in black, powdery, granular, or pellet form. Its main component is carbon, with trace amounts of oxygen, hydrogen, sulfur, nitrogen, and chlorine. It also has a fine structure similar to graphite, but with smaller crystal grains and irregular stacking layers. It possesses a large surface area (500-1000 m²/g). It has adsorption capabilities, allowing gases, liquids, or colloidal substances to be adsorbed more easily on its surface. The adsorption increases with higher pressure, lower temperature, and higher concentration. Conversely, reducing pressure and increasing temperature facilitates the desorption of gases.

Activated carbon is commonly used for the adsorption, separation, and purification of gases, recovery of solvents, decolorization of syrups, oils, and glycerin, as an odor eliminator for drinking water or refrigerators, a filter for gas masks, and can also serve as a catalyst or as a trap for metal salt catalysts. The exhaust gas is powered by a fan and enters the activated carbon adsorption box under positive or negative pressure. Due to the presence of unbalanced and unsaturated molecular attractions or chemical bonds on the solid surface of activated carbon, when this solid surface comes into contact with the gas, it can attract gas molecules, causing them to concentrate and remain on the solid surface. Pollutants are thus adsorbed. After passing through a filter, the exhaust gas enters the activated carbon adsorption tower, resulting in the purification of the gas and its release into the atmosphere meeting high standards.