The catalytic wet peroxide oxidation (CWPO) appears to be
a potentially efficient process when compared with the other
advanced oxidation processes, because the oxidizing properties of
hydrogen peroxide are strong and a catalyst is used in this process.
In the CWPO processes, the redox properties of dissolved transition
metals (e.g., Fe, Cu, Ce) are used to generate hydroxyl radicals
under mild reaction conditions in the presence of hydrogen peroxide.
Although CWPO has been widely used for the oxidation
of wastewater streams with high organic (TOC) content, the utility
of this system is limited because of the restricted viable pH
range and the need for the recovery of the homogeneous catalyst.
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