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|Title:||Supported clay membrane: A new way to characterize water and ion transport in clays|
|Authors:||Kocherginsky, N.M. |
|Citation:||Kocherginsky, N.M., Stucki, J.W. (2001-05). Supported clay membrane: A new way to characterize water and ion transport in clays. Advances in Environmental Research 5 (2) : 197-201. ScholarBank@NUS Repository. https://doi.org/10.1016/S1093-0191(00)00051-4|
|Abstract:||The ability to characterize the diffusion of water and ions through soils and clays is a fundamental component in understanding the environmental processes and fate of pollutants. This note demonstrates that important physico-chemical aspects of these processes could be investigated using a very simple experimental system, based on a clay layer immobilized between two porous nitrocellulose filters. The properties of this three-layer membrane, separating two aqueous solutions, were characterized by membrane electrical conductivity and trans-membrane potential. Results revealed that the transport of aqueous salt solutions is characterized by at least two kinetic phases, fast and slow, both of which follow reversible first-order kinetics and in this aspect are similar to the results of batch or column experiments. © 2001 Elsevier Science Ltd.|
|Source Title:||Advances in Environmental Research|
|Appears in Collections:||Staff Publications|
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