The specific surface area is large, the number of micropores is large, and the adsorbent that can be adsorbed on the walls of fine pores is more. Because the adsorption speed is affected by the internal diffusion speed, the size of the adsorbate (solute) molecules is proportional to the pore size of the activated carbon, which is most favorable for adsorption.

When the activated carbon is put into water, the air released when it adsorbs water molecules will produce many very small blisters (just visible to the naked eye), and they will constantly float to the water surface. As activated carbon adsorbs water molecules to reach saturation, it will increase Only one's own weight will gradually sink to the bottom of the water.

The smaller the solubility, the easier it is to adsorb. The coal-based activated carbon generally has a macromolecular pore structure, and the generated bubble phase is also relatively large. Coconut shell activated carbon belongs to the category of fruit shell activated carbon. The shape of coconut shell activated carbon is generally broken particles, flakes, and shaped activated carbon, such as columnar and spherical activated carbon, are mostly coal-based carbon. In homologues, larger molecules are easier to adsorb than smaller ones. Aromatic organics are more easily adsorbed than aliphatic organics.

It is significantly lighter in graphite electrode for Electric arc furnace than coal activated carbon. Activated carbon is suitable for high-purity domestic drinking water, industrial water and wastewater treatment, deep purification and dechlorination, decolorization, deodorization and gold refining. Coconut shell activated carbon has low density and light hand, so it can be put into water. Because the adsorption process can be regarded as three stages, the internal diffusion has a greater impact on the adsorption speed, so the micropore distribution of activated carbon is another important factor affecting adsorption.

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