Transport of gas-phase contaminants through structured unsaturated porous media

J. Popovicova, M. L. Brusseau

Research output: Contribution to journalArticle

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)
Pages (from-to)133-138
Number of pages6
JournalUnknown Journal
StatePublished - Jan 1 1995

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Transport of gas-phase contaminants through structured unsaturated porous media'. Together they form a unique fingerprint.

  • Cite this