The Adsorption Process: Due to the presence of unbalanced and unsaturated molecular attractions or chemical bond forces on the surface of solids, 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 solid surfaces, 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, thereby separating them from the gas mixture, achieving the purpose of purification.

Activated Carbon Introduction: Activated carbon is an amorphous, porous carbon in the form of black powder, granules, or pellets. 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 layered堆积. It has a large surface area (500-1000 m²/g). It has adsorption capabilities, where gases, liquids, or colloidal substances are more easily adsorbed. The greater the pressure, the lower the temperature, and the higher the concentration, the more adsorption occurs. Conversely, reducing pressure and increasing temperature is beneficial for desorption of gases.

Activated carbon is commonly used for gas adsorption, separation, and purification, solvent recovery, decolorization of sugar solutions, oils, and glycerin, as deodorizers for drinking water or refrigerators, as filter agents for gas masks, and can also be used 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 chamber 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 achieving high-altitude emissions that meet standards.