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Solute pulse dispersion in soil columns: A comparison of supercritical CO(2), gaseous and aqueous systems

Posted on:1999-05-18Degree:Ph.DType:Dissertation
University:University of California, Los AngelesCandidate:Yu, DehuiFull Text:PDF
GTID:1461390014970196Subject:Engineering
Abstract/Summary:
Axial dispersion is an important parameter for quantifying solute transport in a one-dimensional porous medium, such as a packed bed reactor or a soil column. Recent developments in the area of supercritical fluid extraction and chromatography have created a need for understanding dispersion phenomena in such systems. Because the literature in this area is sparse and limited to convection-dominated conditions, a supercritical fluid system was constructed for measuring dispersion coefficients in porous media at low Reynolds numbers (...
Keywords/Search Tags:Dispersion, Supercritical
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