Investigation of Pore Scale Processes That Affect Soil Vapor Extraction

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Description

Dense nonaqueous phase liquid (DNAPL) contamination in the vadose zone is a significant problem at Department of Energy sites. Soil vapor extraction (SVE) is commonly used to remediate DNAPLs from the vadose zone. In most cases, a period of high recovery has been followed by a sustained period of low recovery. This behavior has been attributed to multiple processes including slow interphase mass transfer, retarded vapor phase transport, and diffusion from unswept zones of low permeability.

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Valocchi, Albert J.; Werth, Charles J. & Webb, Andrew G. June 1, 2002.

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Description

Dense nonaqueous phase liquid (DNAPL) contamination in the vadose zone is a significant problem at Department of Energy sites. Soil vapor extraction (SVE) is commonly used to remediate DNAPLs from the vadose zone. In most cases, a period of high recovery has been followed by a sustained period of low recovery. This behavior has been attributed to multiple processes including slow interphase mass transfer, retarded vapor phase transport, and diffusion from unswept zones of low permeability.

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  • Other Information: PBD: 1 Jun 2002

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  • Report No.: EMSP-70045--2002
  • Grant Number: FG07-99ER15007
  • DOI: 10.2172/833496 | External Link
  • Office of Scientific & Technical Information Report Number: 833496
  • Archival Resource Key: ark:/67531/metadc782501

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  • June 1, 2002

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • April 21, 2016, 2:24 p.m.

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Valocchi, Albert J.; Werth, Charles J. & Webb, Andrew G. Investigation of Pore Scale Processes That Affect Soil Vapor Extraction, report, June 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc782501/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.