UV Ozone Peroxide Advanced Oxidation
Variations on the basic schemes of creating hydroxyl radicals using UV and either ozone or peroxide have been
combined to use all three components. In some cases catalysts have been added as well. One example is the
CATADOX process offered by Spartan Environmental Technologies.
The idea of adding the oxidants at different points of the process or in different combinations is designed to improve the
efficiency of the overall oxidation process. The overall idea is to improve both the economy of hydroxyl radical production
as well as the economy of hydroxyl radical use. As a simple example, if one of the species that one wants to oxidize is
readily oxidized by peroxide, it does not make economic sense to oxidize it using and expensive species such as the
hydroxyl radical. Instead, by introducing peroxide first, one can oxidize these easier to oxidize species prior to
introduction of the hydroxyl radicals. Excess peroxide can then be reacted with UV or ozone to form the hydroxyl radicals
for the attack of the more difficult to oxidize species. Another potential reason for the combination is the addition of
hydrogen peroxide to the UV/ozone combination results in a greatly increased efficiency of oxidation. Such increased
efficacy reflects a synergistic effect which may be related to the intermediate production of ozone or HO2 radicals which
set in motion rapid oxidation reactions. In any event, benefits have been observed in the removal of organic compounds
from water in lab, pilot and commercial applications.
Variations on the basic schemes of creating hydroxyl radicals using UV and either ozone or peroxide have been
combined to use all three components. In some cases catalysts have been added as well. One example is the
CATADOX process offered by Spartan Environmental Technologies.
The idea of adding the oxidants at different points of the process or in different combinations is designed to improve the
efficiency of the overall oxidation process. The overall idea is to improve both the economy of hydroxyl radical production
as well as the economy of hydroxyl radical use. As a simple example, if one of the species that one wants to oxidize is
readily oxidized by peroxide, it does not make economic sense to oxidize it using and expensive species such as the
hydroxyl radical. Instead, by introducing peroxide first, one can oxidize these easier to oxidize species prior to
introduction of the hydroxyl radicals. Excess peroxide can then be reacted with UV or ozone to form the hydroxyl radicals
for the attack of the more difficult to oxidize species. Another potential reason for the combination is the addition of
hydrogen peroxide to the UV/ozone combination results in a greatly increased efficiency of oxidation. Such increased
efficacy reflects a synergistic effect which may be related to the intermediate production of ozone or HO2 radicals which
set in motion rapid oxidation reactions. In any event, benefits have been observed in the removal of organic compounds
from water in lab, pilot and commercial applications.
Spartan Environmental Technologies
Air and Water Treatment
Air and Water Treatment
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Spartan Environmental
Technologies, L.L.C.
7383 Lauren J Dr
Mentor, OH 44060
USA
Phone: 800-492-1252
Fax: 440-368-3569
E-mail: info@
spartanwatertreatment.com
Technologies, L.L.C.
7383 Lauren J Dr
Mentor, OH 44060
USA
Phone: 800-492-1252
Fax: 440-368-3569
E-mail: info@
spartanwatertreatment.com