Visualization of residual non-aqueous phase liquid subject to freeze-thaw

Kamaljit Singh, Robert K. Niven

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The behavior of dodecane (Light Non- Aqueous Phase Liquid - LNAPL) or trichloroethylene (Dense Non-Aqueous Phase Liquid - DNAPL) at residual saturation, subject to various freeze-thaw cycles was studied. In the LNAPL experiments, a substantial upward remobilization of LNAPL was observed with successive freeze-thaw cycles. This was attributed to the detachment of mobile LNAPL from larger ganglia during freezing and transport above or with the freezing front. Significant fragmentation of LNAPL ganglia also occurred, and subsequent formation of sub-singlet and singlet ganglia on thawing. DNAPL was migrated both in vertical and horizontal directions, where horizontal movement was more predominant due to the high capillary and gravity forces in vertical direction during upward freezing. This is an abstract of a paper presented at the 2007 Petroleum Hydrocarbons and Organic Chemicals in Ground Water: Prevention, Assessment and Remediation Conference (Houston, TX 11/5-6/2007).

Original languageEnglish
Title of host publicationPetroleum Hydrocarbons and Organic Chemicals in Ground Water
Subtitle of host publicationPrevention, Assessment and Remediation Conference 2007
PublisherNational Ground Water Association
Pages69-87
Number of pages19
ISBN (Print)9781605604053
Publication statusPublished - 2008
EventPetroleum Hydrocarbons and Organic Chemicals in Ground Water: Prevention, Assessment and Remediation Conference 2007 - Houston, TX, United States
Duration: 5 Nov 20076 Jan 2017

Conference

ConferencePetroleum Hydrocarbons and Organic Chemicals in Ground Water: Prevention, Assessment and Remediation Conference 2007
CountryUnited States
CityHouston, TX
Period5/11/076/01/17

Keywords

  • DNAPL
  • Freeze-thaw
  • Ganglia
  • Glass-bead cell
  • LNAPL
  • Residual saturation
  • Soil contamination
  • Visualization

ASJC Scopus subject areas

  • Energy(all)
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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