Advanced Oxidation

Advanced oxidation uses UV radiation combined with ozone or hydrogen peroxide to enhance the oxidation rate of the compounds; reaction times can be 100 to 1000 times faster in the presence of UV light (U.S. EPA 1986b). UV light reacts with hydrogen peroxide molecules to form an hydroxyl radical, a powerful chemical oxidant. Specifically, hydrogen peroxide and UV light are used as shown in Figure 9.17.16 for the treatment of volatile organic compounds and other organic contaminants in contaminated groundwater (U.S. EPA 1993). In addition, hydrogen peroxide, ozone, and UV radiation are used as shown in Figure 9.17.17 for the oxidation of dissolved organic contaminants including chlorinated hydrocarbons

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