Coal-Based Granular Activated Carbon (GAC) is an effective adsorbent used in water and air purification due to its high surface area and porous structure. In industrial water treatment, it removes dissolved organic compounds, chlorine, pesticides, and substances that cause taste and odor. In air treatment, it captures volatile organic compounds (VOCs), solvent vapors, and unpleasant odors. With its high mechanical strength and the possibility of reactivation, it offers a long-lasting and cost-effective solution.