How does Carbon in the inner core remove chlorine and organic chemical?
The primary means by which Activated Carbon works to remove chemicals is physical adsorption. Common to all types of AC is its sponge-like structure of very little graphite crystals which are three-dimensionally linked by amorphous carbon. This sponge-like structure is highly porous and extremely uniform providing high performance adsorption. The walls surfaces of the pores have a huge surface. For instance 240g of granular carbon provide a surface are equivalent to 48 soccer field (240000 m2). Water contaminants are adsorbed because their attraction to the carbon surface is stronger than those to keep them dissolved in water. This adsorption process is based on the polarity of the molecules (so called Van-der Waals forces).