Activated carbon filter manufacturer $n pressure vessel is a type of pressure vessel filled with activated carbon. The work is completed through a charcoal bed. The activated carbon particles that make up the carbon bed have many micropores and a huge specific surface area, and have strong physical adsorption capacity. Water passes through a charcoal bed, and organic pollutants in the water are effectively adsorbed by activated carbon. In addition, there are some oxygen-containing functional groups on the non crystalline part of the surface of activated carbon, which effectively adsorb organic pollutants in the water passing through the carbon bed by activated carbon.