Because of its high porosity and huge surface area, activated carbon is useful for adsorbing pollutants from air and water. Activated carbon is made from a variety of carbonaceous sources, such as coal or coconut shells, and it works by adsorbing pollutants through chemical and physical processes. Activated carbon is used in water treatment to eliminate taste, odor, chlorine, and certain pollutants. It is extensively utilized in filtering systems for industrial operations, wastewater treatment, air purification, and drinking water purification. In order to ensure environmental sustainability and improve water quality, activated carbon is essential.