Intermediate-scale 2D experimental investigation of in situ chemical oxidation using potassium permanganate for remediation of complex DNAPL source zones

Heiderscheidt, Jeffrey L.; Siegrist, Robert L.; Illangasekare, Tissa H.

doi:10.1016/j.jconhyd.2008.07.002

Cited by 35 publications

(21 citation statements)

References 30 publications

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“…Several researchers have observed by-pass flow effects attributed to oxidation reaction products (e.g., Urynowicz and Siegrist, 2000; Reitsma and Marshall, 2000; Schroth et al, 2001; Conrad et al, 2002; MacKinnon and Thomson, 2002; Li and Schwartz, 2004a; Li and Schwartz, 2004c; Heiderscheidt et al, 2008). For example, Conrad et al (2002) conducted flow-cell experiments to examine permanganate treatment of organic-liquid contamination in a heterogeneous system in which the organic liquid occurred primarily in higher-permeability media.…”

Section: Introductionmentioning

confidence: 99%

In situ oxidation and associated mass-flux-reduction/mass-removal behavior for systems with organic liquid located in lower-permeability sediments

Marble

Carroll

Janousek

et al. 2010

Journal of Contaminant Hydrology

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The effectiveness of permanganate for in situ chemical oxidation of organic liquid (trichloroethene) trapped in lower-permeability (K) zones located within a higher-permeability matrix was examined in a series of flow-cell experiments. The permanganate solution was applied in both continuous and pulsed-injection modes. Manganese-oxide precipitation, as confirmed by use of SEM-EDS, occurred within, adjacent to, and downgradient of the lower-K zones, reflective of trichloroethene oxidation. During flow interruptions, precipitate formed within the surrounding higher-permeability matrix, indicating diffusive flux of aqueous-phase trichloroethene from the lower-K zones. The impact of permanganate treatment on mass flux behavior was examined by conducting water floods after permanganate injection. The results were compared to those of water-flood control experiments. The amount of water flushing required for complete contaminant mass removal was reduced for all permanganate treatments for which complete removal was characterized. However, the nature of the mass-flux-reduction/mass-removal relationship observed during water flooding varied as a function of the specific permanganate treatment.

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Section: Introductionmentioning

confidence: 99%

In situ oxidation and associated mass-flux-reduction/mass-removal behavior for systems with organic liquid located in lower-permeability sediments

Marble

Carroll

Janousek

et al. 2010

Journal of Contaminant Hydrology

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“…The preliminary analysis of the soil demonstrated a pH of 4.5, which is adequate to the chemical oxidation, for the treatment with hydrogen peroxide that demands a pH 3 for the soil, as well as for the treatment with potassium permanganate, that demands a pH for the soil between 3 and 10 (Heiderscheidt et al 2008;Ferrarese et al 2008). Studies showed that the capacity of adsorption of organic compounds in the soil (minerals and clay) is proportional to the decrease of the pH (Botalova et al 2009), which can explain the levels of BTX found in soil.…”

Section: Resultsmentioning

confidence: 99%

Degradation of BTX in Contaminated Soil by Using Hydrogen Peroxide (H2O2) and Potassium Permanganate (KMnO4)

Rinaldi

Silva

2010

Water Air Soil Pollut

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This work aims to evaluate the efficiency of the degradation of BTX in soil contaminated with oil effluent by chemical oxidation using hydrogen peroxide and potassium permanganate. The initial concentration of BTX in soil was: benzene, 41.4 μg kg −1 ; toluene, 30.9 μg kg −1 ; xylene, 1,522.7 μg kg −1 and in water was: benzene, 18.6 μg mL −1 ; toluene, 18.0 μg mL −1 ; xylene, 565.8 μg mL −1 . The results showed an elevated efficiency in the degradation of BTX by using these compounds, removing 95.2%, 93.5%, and 95.5% of benzene, toluene, and xylene, respectively, with a solution of hydrogen peroxide and 89.3%, and 94.4% of toluene and xylene, respectively, with a solution of potassium permanganate at 4.5%. Benzene was not degraded in potassium permanganate solution.

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“…Such methods are typically ineffective for sources residing in lower-permeability domains. For example, the results of prior research have shown that standard flood injection of permanganate solution does not fully treat contamination residing in lower-permeability domains (e.g., Seol et al, 2003; Heiderscheidt et al, 2008; Marble et al, 2010). Technologies that can more specifically target the contamination within the lower-permeability domains, such as in-situ thermal or electrokinetic methods, are generally expensive and/or impractical for deeper sources.…”

Section: Introductionmentioning

confidence: 99%

Application of a Persistent Dissolved-Phase Reactive Treatment Zone for Mitigation of Mass Discharge from Sources Located in Lower-Permeability Sediments

Marble

Brusseau

Carroll

et al. 2014

Water Air Soil Pollut

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The purpose of this study is to examine the development and effectiveness of a persistent dissolved-phase treatment zone, created by injecting potassium permanganate solution, for mitigating discharge of contaminant from a source zone located in a relatively deep, low-permeability formation. A localized 1,1-dichloroethene (DCE) source zone comprising dissolved- and sorbed-phase mass is present in lower permeability strata adjacent to a sand/gravel unit in a section of the Tucson International Airport Area (TIAA) Superfund Site. The results of bench-scale studies conducted using core material collected from boreholes drilled at the site indicated that natural oxidant demand was low, which would promote permanganate persistence. The reactive zone was created by injecting a permanganate solution into multiple wells screened across the interface between the lower-permeability and higher-permeability units. The site has been monitored for nine years to characterize the spatial distribution of DCE and permanganate. Permanganate continues to persist at the site, and a substantial and sustained decrease in DCE concentrations in groundwater has occurred after the permanganate injection.. These results demonstrate successful creation of a long-term, dissolved-phase reactive-treatment zone that reduced mass discharge from the source. This project illustrates the application of in-situ chemical oxidation as a persistent dissolved-phase reactive-treatment system for lower-permeability source zones, which appears to effectively mitigate persistent mass discharge into groundwater.

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Intermediate-scale 2D experimental investigation of in situ chemical oxidation using potassium permanganate for remediation of complex DNAPL source zones

Cited by 35 publications

References 30 publications

In situ oxidation and associated mass-flux-reduction/mass-removal behavior for systems with organic liquid located in lower-permeability sediments

In situ oxidation and associated mass-flux-reduction/mass-removal behavior for systems with organic liquid located in lower-permeability sediments

Degradation of BTX in Contaminated Soil by Using Hydrogen Peroxide (H2O2) and Potassium Permanganate (KMnO4)

Application of a Persistent Dissolved-Phase Reactive Treatment Zone for Mitigation of Mass Discharge from Sources Located in Lower-Permeability Sediments

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