Advanced Oxidation Process (AOP)
Advanced Oxidation Process (AOP) is a chemical treatment method that has been used for the removal of recalcitrant organic matter. The basic principle of AOP involves the production of hydroxyl radicals (HO•), which can be generated from hydrogen peroxide (H2O2), ozone, and/or ultraviolet (UV) radiation.
The HO• are the strongest, non-selective oxidants meaning that they can oxidize nearly any compound in water. Theoretically, AOPs should fully mineralize organic compounds to carbon dioxide and water.
The advantages of the AOPs are due to the fast reaction rates and non-selective oxidation, allowing the simultaneous treatment of multiple contaminants. The relative oxidation power of HO• is superior of this of atomic oxygen, ozone, hydrogen peroxide and chlorine.