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Transport and deposition of dilute colloidal suspensions in soils
Author(s) -
VINTEN A. J. A.,
NYE P. H.
Publication year - 1985
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1985.tb00356.x
Subject(s) - suspension (topology) , deposition (geology) , filtration (mathematics) , colloid , soil water , colloidal particle , chemistry , chemical engineering , soil science , environmental science , geology , paleontology , statistics , mathematics , homotopy , sediment , pure mathematics , engineering
SUMMARY Transport and deposition of suspended particles occur during many soil processes. The mechanisms of removal of particles from suspension during saturated flow are described, and a simple equation of depth filtration is used to test experimental data. A method for labelling dilute clay suspensions with 14 C‐paraquat is developed. Particles are removed from flowing suspension even when they are dispersed. The depth filtration equation holds only under these conditions, though the mechanisms of removal of particles from suspension by the soil are unclear. A surprisingly large reduction in flow rate accompanies passage of dilute clay suspensions through soil columns.