In Situ Redox Manipulation Proof-of-Principle Test at the Fort Lewis Logistics Center: Final Report

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Pacific Northwest National Laboratory conducted a proof-of-principle test at the Fort Lewis Logistics Center to determine the feasibility of using the innovative remedial technology In Situ Redox Manipulation (ISRM) to treat groundwater contaminated with dissolved TCE. ISRM creates a permeable treatment zone in the subsurface to remediate redox-sensitive contaminants in groundwater. The permeable treatment zone is created by injecting a chemical reducing agent (sodium dithionite with pH buffers) into the aquifer through a well to chemically reduce the naturally occurring ferric iron in the sediments to ferrous iron. Once the reducing agent has been given sufficient time to react with ... continued below

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Vermeul, V. R.; Williams, M. D.; Evans, J. C.; Szecsody, J. E.; Bjornstad, B. N. & Liikala, T. L. October 25, 2000.

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Description

Pacific Northwest National Laboratory conducted a proof-of-principle test at the Fort Lewis Logistics Center to determine the feasibility of using the innovative remedial technology In Situ Redox Manipulation (ISRM) to treat groundwater contaminated with dissolved TCE. ISRM creates a permeable treatment zone in the subsurface to remediate redox-sensitive contaminants in groundwater. The permeable treatment zone is created by injecting a chemical reducing agent (sodium dithionite with pH buffers) into the aquifer through a well to chemically reduce the naturally occurring ferric iron in the sediments to ferrous iron. Once the reducing agent has been given sufficient time to react with aquifer sediments, residual chemicals and reaction products are withdrawn through the same well. Redox-sensitive contaminants such as TCE, moving in a dissolved-phase plume through the treatment zone, are destroyed. TCE is degraded via reductive dechlorination within the treatment zone to benign degradation products (acetylene, ethylene). Analyses of sediment samples collected from post-test boreholes showed a high degree of iron reduction, which confirmed the effectiveness of the treatment zone.

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  • Other Information: PBD: 25 Oct 2000

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  • Report No.: PNNL-13357
  • Grant Number: AC06-76RL01830
  • DOI: 10.2172/781433 | External Link
  • Office of Scientific & Technical Information Report Number: 781433
  • Archival Resource Key: ark:/67531/metadc719163

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • October 25, 2000

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  • Sept. 29, 2015, 5:31 a.m.

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  • April 7, 2016, 1:37 p.m.

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Vermeul, V. R.; Williams, M. D.; Evans, J. C.; Szecsody, J. E.; Bjornstad, B. N. & Liikala, T. L. In Situ Redox Manipulation Proof-of-Principle Test at the Fort Lewis Logistics Center: Final Report, report, October 25, 2000; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc719163/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.