IN-SITU Chemical Oxidation of Chlorinated Hydrocarbons in the Presence of Radionuclides
Conference
·
OSTI ID:827644
Treatability testing for In Situ Chemical Oxidation was conducted on a site where the groundwater was contaminated with trichloroethylelne, nitroaromatics, nitrate, and radionuclides. The treatability testing involved characterization of the contaminated aquifer material and groundwater, soil oxidant demand testing, and batch slurry reaction tests. The aquifer oxidant demand was 0.44 to 0.89 grams KMnO4 per kg aquifer solids. This is an exceptionally low level and indicates that permanganate reagent would be used efficiently on site to treat VOCs rather than react with the aquifer matrix. The slurry reaction test data indicate that permanganate reaction with TCE, cis-1,2-DCE, and vinyl chloride present in the site groundwater occurs rapidly and are destroyed to below detectable levels (<5 {micro}g/L) in groundwater and aquifer environment within the first 8 hours of treatment. A permanganate concentration of 1,000 mg/L or above will accomplish this performance. The water quality w as not adversely affected by the treatment process. Chloride and nitrate ion concentrations in the groundwater as well as pH of the groundwater are not impacted by permanganate treatment. No adverse effect on aqueous concentrations of chromium, manganese or uranium was detected due to the permanganate treatment process.
- Research Organization:
- Shaw Environmental & Infrastructure (US)
- Sponsoring Organization:
- none (US)
- OSTI ID:
- 827644
- Country of Publication:
- United States
- Language:
- English
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