▶The good quality coconut shell activated carbon is used as the material, which is larger than the surface product and has strong adsorption caity. ▶In the water quality pretreatment system, the activated carbon filter can adsorb the residual chlorine that can not be removed in the pre-filtration to prevent the oxidation and degradation of the post-stage reverse osmosis membrane, and also adsorb the polluting substances such as small molecule organic matter ▶leaks from the previous stage, and have a more obvious adsorption removal effect on the odor, colloids and pigments, heavy metal ions and COD in the water. ▶The SDI value of RO inlet water can be further reduced. Activated carbon particles have very many micropores and huge specific surface area, and have strong physical adsorption caity. The water passes through the carbon bed, and the organic pollutants in the water are effectively adsorbed by activated carbon. ▶In addition, there are some oxygen-containing tube energy groups on the amorphous part of the surface of the activated carbon, so that the organic pollutants in the water passing through the carbon bed can be effectively adsorbed by the activated carbon., Manufacturer: SOYWIM