The activated carbon filtration technology of water dispenser is an important water treatment method. Its core is to use activated carbon as an adsorbent to remove odors, residual chlorine, organic pollutants, etc. in the water, thereby improving the taste and purity of the water. Spend.
Selection of activated carbon: Activated carbon is a specially treated adsorbent with large surface area and strong porosity. In bottled water machines, high-quality activated carbon is usually used, with a surface area greater than 1000 square meters/gram. This high surface area ensures more adsorption sites and improves the adsorption efficiency of activated carbon.
Adsorption principle: The adsorption principle of activated carbon is to absorb impurities in water through its porous structure. There are a large number of micropores and mesopores on the surface of activated carbon, forming a sponge-like structure. These micropores and mesopores provide a large number of adsorption sites, which can adsorb molecules in the water to the surface, including odor molecules, residual chlorine, organic matter, etc.
Removal of odors: Activated carbon removes odors by adsorbing odor molecules. After the odor molecules are adsorbed to the surface of the activated carbon, they physically or chemically adsorb to the surface of the activated carbon, thereby effectively removing unpleasant odors from the water and improving the taste of drinking water.
Removal of residual chlorine: The adsorption of residual chlorine by activated carbon is a process that combines physical adsorption and chemical adsorption. The micropores on the surface of activated carbon can absorb residual chlorine molecules. At the same time, the chemical functional groups on the activated carbon can chemically react with residual chlorine and convert it into harmless ions to achieve effective removal of residual chlorine.
Removal of organic pollutants: Activated carbon can also effectively remove organic pollutants in water, including organic solvents, pesticide residues, etc. These organic pollutants are fixed on the surface through the adsorption of activated carbon, purifying the water quality.