activated carbon

Kaicom is a specialist supplier of Activated Carbon. Activated Carbon, sometimes referred to as Activated Charcoal, is a highly porous form of carbon which has highly absorbent properties. Made from either coconut shells, wood, coal or peat Activated Carbon is widely used in the Cosmetics, Water purification & Air purification industries.

Activated carbon has an incredibly large surface area per unit volume, and a network of submicroscopic pores where adsorption takes place. Activated carbon is a material that is produced from carbonaceous source materials. The primary raw material used for activated carbon is any organic material with a high carbon content. The carbon-based material is converted to activated carbon through physical modification and thermal decomposition in a furnace, under a controlled atmosphere and temperature. The finished product has a large surface area per unit volume and a network of submicroscopic pores where adsorption takes place.

Physical adsorption is the primary means by which activated carbon works to remove contaminants from liquid or vapor streams. Carbon’s large surface area per unit weight allows for contaminants to adhere to the activated carbon media.

The large internal surface area of carbon has several attractive forces that work to attract other molecules. These forces manifest in a similar manner as gravitational force; therefore, contaminants in water are adsorbed (or adhered) to the surface of carbon from a solution as a result of differences in adsorbate concentration in the solution and in the carbon pores.

Physical adsorption occurs because all molecules exert attractive forces, especially molecules at the surface of a solid (pore walls of carbon), and these surface molecules seek to adhere to other molecules.