In situ oxidation by fracture emplaced reactive solids

Journal Article · Sat May 01 04:00:00 EDT 1999 · Journal of Environmental Engineering

DOI:https://doi.org/10.1061/(ASCE)0733-9372(1999)125:5(429)· OSTI ID:347651

Siegrist, R L ^[1]; Lowe, K S; Pickering, D A ^[2]; Murdoch, L C ^[3]; Case, T L ^[4]

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1. Colorado School of Mines/Oak Ridge National Lab., Golden, CO (United States). Environmental Science and Engineering Div.
2. Oak Ridge National Lab., Grand Junction, CO (United States). Life Sciences Div.
3. Clemson Univ., SC (United States). Geosciences Dept.
4. American Water Works Association Research Foundation, Denver, CO (United States)

In low permeability but naturally fractured media, vertical leaching or volatilization of toxic organic compounds can lead to high exposures and unacceptable human health or environmental risk. A field test was recently completed to evaluate in situ remediation at such sites by using hydraulic fracturing to emplace iron metal (Fe{sup 0}) and permanganate (KMnO{sub 4}) solids in the subsurface to chemically treat trichloroethylene (TCE). At an old land treatment site, two test cells were installed in silty clay soils with hydraulic fractures filled with either iron metal or permanganate solids at 1.8, 2.4, and 3.6 m depths. Fracture emplacement was monitored, and soil and ground water conditions were characterized. After 3, 10, and 15 mo of emplacement, continuous cores were collected and morphologic and geochemical data were taken across the fracture zones. Controlled degradation tests were completed using site ground water with TCE concentrations near 53, 144, and 480 mg/L, equivalent to 0.5, 1.2, and 4.1 g TCE per kg media, respectively.

• Sponsoring Organization: USDOE, Washington, DC (United States)
• OSTI ID: 347651
• Journal Information: Journal of Environmental Engineering, Journal Name: Journal of Environmental Engineering Journal Issue: 5 Vol. 125; ISSN 0733-9372; ISSN JOEEDU
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
CHLORINATED ALIPHATIC HYDROCARBONS
FIELD TESTS
GROUND WATER
IN-SITU PROCESSING
OXIDATION
REMEDIAL ACTION
SOILS