Microscopic research on air sparging i-network model development

Shengyan Gao, Jay N. Meegoda, Liming Hu

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

1 Scopus citations

Abstract

Air sparging is an accepted technology for remediation of soils contaminated with volatile organic compounds (VOCs). The micro-mechanics of air sparging is helpful in understanding the mechanism behind air migration and the spatial distribution of air phase during air sparging. In order to conduct microscopic research on air sparging, a 3D network which can capture both the geometrical information of soil matrix including pore size and throat size distributions with their correlation and the topological information of soil matrix including the distribution of coordination numbers was proposed. A complete procedure of developing the 3D microscopic network model was developed and presented. The method of estimating or acquiring the geometrical and topological information of soil structure was also presented. Finally, the validity of the developed network was verified by capturing the main structure properties of the soil matrix. The simulation confirmed that the proposed model can be used to investigate micro-mechanics of air sparging.

Original languageEnglish (US)
Title of host publicationGeo-Frontiers 2011
Subtitle of host publicationAdvances in Geotechnical Engineering - Proceedings of the Geo-Frontiers 2011 Conference
Pages4176-4185
Number of pages10
Edition211 GSP
DOIs
StatePublished - May 27 2011
EventGeo-Frontiers 2011: Advances in Geotechnical Engineering - Dallas, TX, United States
Duration: Mar 13 2011Mar 16 2011

Publication series

NameGeotechnical Special Publication
Number211 GSP
ISSN (Print)0895-0563

Other

OtherGeo-Frontiers 2011: Advances in Geotechnical Engineering
CountryUnited States
CityDallas, TX
Period3/13/113/16/11

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

Keywords

  • Air injection
  • Microscopy
  • Porous media

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