Wastewater treatment plants play a crucial role in maintaining environmental health by treating sewage and industrial wastewater before discharge into water bodies. However, the treatment process often generates unpleasant odors due to the decomposition of organic matter and the presence of sulfur compounds, ammonia, and other volatile organic compounds (VOCs). Activated carbon, renowned for its superior adsorption properties, has emerged as an effective solution for odor control in wastewater treatment plants. This article delves into the role of activated carbon in odor control, its benefits in wastewater treatment, and its transformative impact on environmental sustainability.