Purification using activated carbon

Purification by activated carbon is mostly done due to surface absorption or absorption phenomenon. When a chemical substance is placed on the surface of a solid body, surface adsorption occurs. When partial chemical bonds are created between the absorbed particles or when the absorbed substance enters the channels in the solid body, we say that the phenomenon of absorption has occurred. However, these two words are often used with the same meaning, because it is very difficult to distinguish them from each other. The use of activated carbon in removing unpleasant odors and tastes from drinking water was known from the beginning of the urbanization period. For thousands of years, bone ash and burnt plants, sand and gravel have been used for domestic water filtration. During the two world wars, effective research was carried out in this field and the production of activated charcoal accelerated. The use of poisonous gas led to the production and development of masks. They are still used today. Coal adsorbs many substances, including colored organic particles to inorganic metal ions. Coal is used to remove the color of raw sugar from different sources