Document Type : Review Article

Author

• Rawaa A Alattar

Department of Chemistry, College of Science, University of Kerbala, Karbala, Iraq

Abstract

The biggest issue facing humanity today is environmental pollution, which is a long-standing phenomena and one of the main environmental causes of disease and mortality. air, water, and soil pollution kinds, their sources and effects, and strategies for reducing pollution for a healthy and sustainable environment. AOPs reduce the amount of contaminants in the water by using strong chemical oxidants. Along with this purpose, these procedures can also eliminate odor, enhance the drinking water's flavor, and kill microorganisms (as a disinfectant). One of the non-photochemical AOPs techniques is the production of hydroxyl radicals without light via the Fenton reaction or ozonation. The photochemical AOPs methods produce reactive hydroxyl radicals by combining UV light with H2O2, O3, and/or Fe+2. When traditional O3 and H2O2 are unable to fully oxidize organic contaminants, the photochemical approach is employed; otherwise, the non-photochemical method is frequently employed. Nevertheless, the kind of contamination that needs to be eliminated determines which AOPs techniques are used.

Keywords

• Environmental pollution
• Advanced Oxidation Processes
• Photochemical
• non – Photochemical