Interactive relationships of catalyst species and hydrogen peroxide concentration in the Fenton-like remediation of contaminated soils
- Washington State Univ., Pullman, WA (United States)
The purpose of this research was to compare iron catalysts and optimize the Fenton-like remediation of diesel contaminated soil based on the species of the iron catalyst, the hydrogen peroxide concentration, and the slurry volume. Using a central composite rotatable design, mineral-catalyzed Fenton-like reactions were investigated at a range of slurry volumes. The most efficient treatment conditions included hydrogen peroxide and 30 times the field capacity of the soil with four weeks required for the reaction to reach completion. However, the large volumes of dilute peroxide needed would likely be impractical in the field; based on results, more than 9.5 liters would be required to treat 1 kilogram of soil under these process conditions. Hydrogen peroxide catalyzed by six iron compounds and by naturally-occurring minterals stabilized by phosphate was investigated. Iron(III) compounds proved to be more effective than Iron(II) compounds and monobasic potassium phosphate.
- OSTI ID:
- 210494
- Report Number(s):
- CONF-9509139--
- Country of Publication:
- United States
- Language:
- English
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