Deep Vadose Zone Treatability Test of Soil Desiccation for the Hanford Central Plateau: Final Report

Technical Report · Tue Feb 20 00:00:00 EST 2018

DOI:https://doi.org/10.2172/1423418· OSTI ID:1423418

Truex, Michael J. ^[1]; Chronister, Glen B. ^[2]; Strickland, Christopher E. ^[1]; Johnson, Christian D. ^[1]; Tartakovsky, Guzel D. ^[1]; Oostrom, Martinus ^[1]; Clayton, Ray E. ^[1]; Johnson, Timothy C. ^[1]; Freedman, Vicky L. ^[1]; Rockhold, Mark L. ^[1]; Greenwood, William J. ^[1]; Peterson, John E. ^[3]; Hubbard, Susan S. ^[3]; Ward, Anderson L. ^[1]

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1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
2. CH2M Hill Plateau Remediation Co., Richland, WA (United States)
3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Some of the inorganic and radionuclide contaminants in the deep vadose zone at the Hanford Site are at depths where direct exposure pathways are not of concern, but may need to be remediated to protect groundwater. The Department of Energy developed a treatability test program for technologies to address Tc-99 and uranium in the deep vadose zone. These contaminants are mobile in the subsurface environment, have been detected at high concentrations deep in the vadose zone, and at some locations have reached groundwater. The treatability test of desiccation described herein was conducted as an element of the deep vadose zone treatability test program. Desiccation was shown to be a potentially effective vadose zone remediation technology to protect groundwater when used in conjunction with a surface infiltration barrier.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1423418
• Report Number(s): PNNL-26902; 830403000
• Country of Publication: United States
• Language: English

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