Interfacial Reduction-Oxidation Mechanisms Governing Fate and Transport of Contaminants in the Vadose Zone

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Immobilization of toxic and radioactive metals (e.g., Cr, Tc, and U) in the vadose zone by in situ gaseous reduction using hydrogen sulfide (H2S) is a promising technology the U.S. Department of Energy (DOE) is developing for soil remediation. Earlier laboratory studies have shown that Cr(VI) in a number of soil samples can be effectively immobilized by treatment with dilute gaseous H2S. A field test has also been completed that resulted in 70% immobilization of Cr(VI). The objective of this project is to characterize the interactions among H2S, the metal contaminants, and soil components. Understanding these interactions is needed to ... continued below

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Deng, B.; Thornton, Edward C.; Olsen, Khris B.; Cantrell, Kirk J. & Amonette, James E. June 1, 2001.

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Description

Immobilization of toxic and radioactive metals (e.g., Cr, Tc, and U) in the vadose zone by in situ gaseous reduction using hydrogen sulfide (H2S) is a promising technology the U.S. Department of Energy (DOE) is developing for soil remediation. Earlier laboratory studies have shown that Cr(VI) in a number of soil samples can be effectively immobilized by treatment with dilute gaseous H2S. A field test has also been completed that resulted in 70% immobilization of Cr(VI). The objective of this project is to characterize the interactions among H2S, the metal contaminants, and soil components. Understanding these interactions is needed to assess the long-term effectiveness of the technology and to optimize the remediation system.

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  • Other Information: PBD: 1 Jun 2001

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  • Report No.: EMSP-70088--2001
  • Grant Number: FG07-99ER15011
  • DOI: 10.2172/833522 | External Link
  • Office of Scientific & Technical Information Report Number: 833522
  • Archival Resource Key: ark:/67531/metadc779154

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  • June 1, 2001

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  • Dec. 3, 2015, 9:30 a.m.

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  • April 21, 2016, 2:23 p.m.

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Deng, B.; Thornton, Edward C.; Olsen, Khris B.; Cantrell, Kirk J. & Amonette, James E. Interfacial Reduction-Oxidation Mechanisms Governing Fate and Transport of Contaminants in the Vadose Zone, report, June 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc779154/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.