Influence of Chemical Osmosis on Solute Transport and Fluid Velocity in Clay Soils
Abstract: Solute transport through the clay liner is a significant process in many waste landfills or unmanaged landfills. At present, researchers mainly focus on the test study about semi-membrane property of clay material, however, the influence of chemical osmosis caused by membrane effect on solute transport and fluid velocity is insufficient. In this investigation, based on the classical advection-diffusion equation, a one-dimensional solute transport model for low-permeable clay material has been proposed, in which the coupled fluid velocity related with hydraulic gradient and concentration gradient is introduced, and the semi-membrane effect is embodied in the diffusion mechanism. The influence of chemical osmosis on fluid velocity and solute transport has been analyzed using COMSOL Multiphysics software. The simulated results show that chemical osmosis has a significant retarded action on fluid velocity and pollutant transport. The proposed model can effectively reveal the change in process of coupled fluid velocity under dual gradient and solute transport, which can provide a theoretical guidance for similar fluid movement in engineering.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Influence of Chemical Osmosis on Solute Transport and Fluid Velocity in Clay Soils ; volume:18 ; number:1 ; year:2020 ; pages:232-238 ; extent:7
Open chemistry ; 18, Heft 1 (2020), 232-238 (gesamt 7)
- Creator
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Zhang, Zhihong
Tian, Gailei
Han, Lin
- DOI
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10.1515/chem-2020-0026
- URN
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urn:nbn:de:101:1-2410161630582.771454708174
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:22 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Zhang, Zhihong
- Tian, Gailei
- Han, Lin
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