Transport of gas-phase contaminants through structured unsaturated porous media

J. Popovicova, Mark L Brusseau

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Soil venting is a widely used technology for removal of volatile organic compounds from the unsaturated zone. However its efficiency and length of operation is subject to many constraints. The presence of an heterogeneous porous medium is one potential cause of reduced efficiency. A laboratory column study to investigate effect of diffusion between macropore and micropore domains on tracer transport was performed. Dry glass beads and an artificial macropore were used to simulate a structured porous medium. The contribution of hydrodynamic dispersion, axial diffusion, and diffusion between macropore and micropore domains to total tracer dispersion was quantified. Diffusion between macropore and micropore domains was the major contributing process to gas dispersion at gas velocities >120 cm min-1. -from Authors

Original languageEnglish (US)
Title of host publicationGroundwater quality: remediation and protection. Proc. conference, Prague, 1995
EditorsK. Kovar, J. Krasny
Pages133-138
Number of pages6
StatePublished - 1995

Fingerprint

macropore
porous medium
pollutant
gas
tracer
venting
vadose zone
volatile organic compound
glass
hydrodynamics
soil

ASJC Scopus subject areas

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

Cite this

Popovicova, J., & Brusseau, M. L. (1995). Transport of gas-phase contaminants through structured unsaturated porous media. In K. Kovar, & J. Krasny (Eds.), Groundwater quality: remediation and protection. Proc. conference, Prague, 1995 (pp. 133-138)

Transport of gas-phase contaminants through structured unsaturated porous media. / Popovicova, J.; Brusseau, Mark L.

Groundwater quality: remediation and protection. Proc. conference, Prague, 1995. ed. / K. Kovar; J. Krasny. 1995. p. 133-138.

Research output: Chapter in Book/Report/Conference proceedingChapter

Popovicova, J & Brusseau, ML 1995, Transport of gas-phase contaminants through structured unsaturated porous media. in K Kovar & J Krasny (eds), Groundwater quality: remediation and protection. Proc. conference, Prague, 1995. pp. 133-138.
Popovicova J, Brusseau ML. Transport of gas-phase contaminants through structured unsaturated porous media. In Kovar K, Krasny J, editors, Groundwater quality: remediation and protection. Proc. conference, Prague, 1995. 1995. p. 133-138
Popovicova, J. ; Brusseau, Mark L. / Transport of gas-phase contaminants through structured unsaturated porous media. Groundwater quality: remediation and protection. Proc. conference, Prague, 1995. editor / K. Kovar ; J. Krasny. 1995. pp. 133-138
@inbook{1921e067143a4fa9afa8fd258f3467c8,
title = "Transport of gas-phase contaminants through structured unsaturated porous media",
abstract = "Soil venting is a widely used technology for removal of volatile organic compounds from the unsaturated zone. However its efficiency and length of operation is subject to many constraints. The presence of an heterogeneous porous medium is one potential cause of reduced efficiency. A laboratory column study to investigate effect of diffusion between macropore and micropore domains on tracer transport was performed. Dry glass beads and an artificial macropore were used to simulate a structured porous medium. The contribution of hydrodynamic dispersion, axial diffusion, and diffusion between macropore and micropore domains to total tracer dispersion was quantified. Diffusion between macropore and micropore domains was the major contributing process to gas dispersion at gas velocities >120 cm min-1. -from Authors",
author = "J. Popovicova and Brusseau, {Mark L}",
year = "1995",
language = "English (US)",
pages = "133--138",
editor = "K. Kovar and J. Krasny",
booktitle = "Groundwater quality: remediation and protection. Proc. conference, Prague, 1995",

}

TY - CHAP

T1 - Transport of gas-phase contaminants through structured unsaturated porous media

AU - Popovicova, J.

AU - Brusseau, Mark L

PY - 1995

Y1 - 1995

N2 - Soil venting is a widely used technology for removal of volatile organic compounds from the unsaturated zone. However its efficiency and length of operation is subject to many constraints. The presence of an heterogeneous porous medium is one potential cause of reduced efficiency. A laboratory column study to investigate effect of diffusion between macropore and micropore domains on tracer transport was performed. Dry glass beads and an artificial macropore were used to simulate a structured porous medium. The contribution of hydrodynamic dispersion, axial diffusion, and diffusion between macropore and micropore domains to total tracer dispersion was quantified. Diffusion between macropore and micropore domains was the major contributing process to gas dispersion at gas velocities >120 cm min-1. -from Authors

AB - Soil venting is a widely used technology for removal of volatile organic compounds from the unsaturated zone. However its efficiency and length of operation is subject to many constraints. The presence of an heterogeneous porous medium is one potential cause of reduced efficiency. A laboratory column study to investigate effect of diffusion between macropore and micropore domains on tracer transport was performed. Dry glass beads and an artificial macropore were used to simulate a structured porous medium. The contribution of hydrodynamic dispersion, axial diffusion, and diffusion between macropore and micropore domains to total tracer dispersion was quantified. Diffusion between macropore and micropore domains was the major contributing process to gas dispersion at gas velocities >120 cm min-1. -from Authors

UR - http://www.scopus.com/inward/record.url?scp=0028887282&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028887282&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:0028887282

SP - 133

EP - 138

BT - Groundwater quality: remediation and protection. Proc. conference, Prague, 1995

A2 - Kovar, K.

A2 - Krasny, J.

ER -