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Interpretation of Solute Transport Data Obtained with Fiberglass Wick Soil Solution Samplers
Author(s) -
Poletika N. N.,
Roth K.,
Jury W. A.
Publication year - 1992
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1992.03615995005600060015x
Subject(s) - simazine , moment (physics) , flow (mathematics) , porous medium , adsorption , breakthrough curve , soil science , hydrology (agriculture) , dispersion (optics) , environmental science , mechanics , chemistry , porosity , materials science , geotechnical engineering , geology , physics , optics , pesticide , atrazine , organic chemistry , classical mechanics , agronomy , biology
The fiberglass wick soil solution sampler has shown potential for use in unsaturated soil, but its effect on determination of transport properties is not fully characterized. This study investigated transport behavior in the sampler of Br ‐ , simazine [2‐chloro‐4,6‐bis(ethylamino)‐ s ‐triazine], and MS‐2 coliphage. Travel‐time moment analysis for several steady flow experiments involving narrow pulse inputs of these components showed rapid breakthrough with well‐defined peaks and negligible adsorption. Assuming a convection‐dispersion process in a two‐layer system consisting of homogeneous soil overlying a sampler, moment analysis suggests that, for the flow rates tested, both expected travel time and its variance are little influenced by transport through the porous wick for layer thicknesses commonly used in solute transport studies.