A test of the local equilibrium assumption for adsorption and transport of picloram

H. M. Gaber, S. D. Comfort, W. P. Inskeep, H. A. El-Attar

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Three sets of transport experiments were conducted to study the movement of Br- and picloram through an Amsterdam silt loam soil in disturbed soil columns. Results indicated that Br- breakthrough curves (BTCs) were symmetrical at each pore water velocity. In contrast, picloram BTCs were shifted to the left on a pore-volume basis and demonstrated increased tailing with increasing pore water velocities. These observations were consistent with conclusions derived from criteria used to assess local equilibrium assumption applicability and indicate that knowledge of reaction kinetics and convective velocities can be easily used to identify conditions conducive to nonequilibrium transport. -from Authors

Original languageEnglish (US)
Pages (from-to)1392-1400
Number of pages9
JournalSoil Science Society of America Journal
Volume56
Issue number5
DOIs
StatePublished - 1992

ASJC Scopus subject areas

  • Soil Science

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