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An Experimental Study on Solute Transport in One-Dimensional Clay Soil Columns
Joint Authors
Wen, Zhang
Jin, Menggui
Zaheer, Muhammad
Zhan, Hongbin
Chen, Xiaolian
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-06-14
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
Solute transport in low-permeability media such as clay has not been studied carefully up to present, and we are often unclear what the proper governing law is for describing the transport process in such media.
In this study, we composed and analyzed the breakthrough curve (BTC) data and the development of leaching in one-dimensional solute transport experiments in low-permeability homogeneous and saturated media at small scale, to identify key parameters controlling the transport process.
Sodium chloride (NaCl) was chosen to be the tracer.
A number of tracer tests were conducted to inspect the transport process under different conditions.
The observed velocity-time behavior for different columns indicated the decline of soil permeability when switching from tracer introducing to tracer flushing.
The modeling approaches considered were the Advection-Dispersion Equation (ADE), Two-Region Model (TRM), Continuous Time Random Walk (CTRW), and Fractional Advection-Dispersion Equation (FADE).
It was found that all the models can fit the transport process very well; however, ADE and TRM were somewhat unable to characterize the transport behavior in leaching.
The CTRW and FADE models were better in capturing the full evaluation of tracer-breakthrough curve and late-time tailing in leaching.
American Psychological Association (APA)
Zaheer, Muhammad& Wen, Zhang& Zhan, Hongbin& Chen, Xiaolian& Jin, Menggui. 2017. An Experimental Study on Solute Transport in One-Dimensional Clay Soil Columns. Geofluids،Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1155721
Modern Language Association (MLA)
Zaheer, Muhammad…[et al.]. An Experimental Study on Solute Transport in One-Dimensional Clay Soil Columns. Geofluids No. 2017 (2017), pp.1-17.
https://search.emarefa.net/detail/BIM-1155721
American Medical Association (AMA)
Zaheer, Muhammad& Wen, Zhang& Zhan, Hongbin& Chen, Xiaolian& Jin, Menggui. An Experimental Study on Solute Transport in One-Dimensional Clay Soil Columns. Geofluids. 2017. Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1155721
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1155721