Advanced Oxidation Processes (AOPs) are chemical treatment procedures designed to remove organic and inorganic contaminants from water and wastewater. These processes involve the generation of highly reactive species, primarily hydroxyl radicals (â¢OH), which can effectively degrade complex pollutants into less harmful substances. AOPs have gained significant attention in the field of environmental toxicology due to their effectiveness in treating persistent and toxic compounds that conventional treatment methods fail to address.