Flow interruption: A method for investigating sorption nonequilibrium

M. L. Brusseau; P. S.C. Rao; R. E. Jessup; J. M. Davidson

doi:10.1016/0169-7722(89)90010-7

Flow interruption: A method for investigating sorption nonequilibrium

M. L. Brusseau, P. S.C. Rao, R. E. Jessup, J. M. Davidson

Research output: Contribution to journal › Article › peer-review

153 Scopus citations

Abstract

A flow-interruption method for investigating sorption nonequilibrium is presented. The technique has a greater sensitivity to nonequilibrium than to traditional column experiments and hence provides a greater capacity to investigate nonequilibrium. The technique may provide more reliable determinations of kinetic parameter values. In some situations, the technique may be used to assist in the delineation of mechanism(s) responsible for sorption nonequilibrium. Use of the technique is demonstrated with miscible displacement of the herbicide 2,4-D through saturated soil columns. The sorption nonequilibrium exhibited by 2,4-D is suggested to be a result of intraorganic matter diffusion. Experimentally determined values of the sorption rate constant show an inverse relationship to organic matter content.

Original language	English (US)
Pages (from-to)	223-240
Number of pages	18
Journal	Journal of Contaminant Hydrology
Volume	4
Issue number	3
DOIs	https://doi.org/10.1016/0169-7722(89)90010-7
State	Published - Aug 1989
Externally published	Yes

ASJC Scopus subject areas

Environmental Chemistry
Water Science and Technology

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abstract = "A flow-interruption method for investigating sorption nonequilibrium is presented. The technique has a greater sensitivity to nonequilibrium than to traditional column experiments and hence provides a greater capacity to investigate nonequilibrium. The technique may provide more reliable determinations of kinetic parameter values. In some situations, the technique may be used to assist in the delineation of mechanism(s) responsible for sorption nonequilibrium. Use of the technique is demonstrated with miscible displacement of the herbicide 2,4-D through saturated soil columns. The sorption nonequilibrium exhibited by 2,4-D is suggested to be a result of intraorganic matter diffusion. Experimentally determined values of the sorption rate constant show an inverse relationship to organic matter content.",

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AU - Brusseau, M. L.

AU - Rao, P. S.C.

AU - Jessup, R. E.

AU - Davidson, J. M.

PY - 1989/8

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AB - A flow-interruption method for investigating sorption nonequilibrium is presented. The technique has a greater sensitivity to nonequilibrium than to traditional column experiments and hence provides a greater capacity to investigate nonequilibrium. The technique may provide more reliable determinations of kinetic parameter values. In some situations, the technique may be used to assist in the delineation of mechanism(s) responsible for sorption nonequilibrium. Use of the technique is demonstrated with miscible displacement of the herbicide 2,4-D through saturated soil columns. The sorption nonequilibrium exhibited by 2,4-D is suggested to be a result of intraorganic matter diffusion. Experimentally determined values of the sorption rate constant show an inverse relationship to organic matter content.

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Flow interruption: A method for investigating sorption nonequilibrium

Abstract

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