The operational variables of electrokinetic remediation have not been cleared yet, because this method is relatively new and is an innovative technique in the aquifer remediation. In order to investigate the operational variables of the electrokinetic remediation, a mathematical model has been constructed based on the physico chemical mass transport process of heavy metals in pore water of contaminated aquifer. The transport of the heavy metals is driven not only by the hydraulic flow due to the injection of the purge water but also by the electromigration due to the application of the electric potential gradient. The electric potential between anode and cathode is the important operational variable for the electrokinetic remediation. From the numerical simulations with use of this model it is confirmed that the remediation starts from the up stream anode and gradually the heavy metal is transported to the down stream cathode and drawn out through the purge water.
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Research Article|
October 01 2000
Removal of heavy metal from soil and groundwater by in-situ electrokinetic remediation Available to Purchase
S. Shiba;
S. Shiba
*Department of Chemical Engineering, Graduate School of Osaka University, Toyonaka, Osaka 560-8531, Japan
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S. Hino;
S. Hino
*Department of Chemical Engineering, Graduate School of Osaka University, Toyonaka, Osaka 560-8531, Japan
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Y. Hirata;
Y. Hirata
*Department of Chemical Engineering, Graduate School of Osaka University, Toyonaka, Osaka 560-8531, Japan
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T. Seno
T. Seno
**Department of Systems Engineering, Graduate School of Shizuoka University, Hamamatsu, Shizuoka 432-8561, Japan
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Water Sci Technol (2000) 42 (7-8): 335–343.
Citation
S. Shiba, S. Hino, Y. Hirata, T. Seno; Removal of heavy metal from soil and groundwater by in-situ electrokinetic remediation. Water Sci Technol 1 October 2000; 42 (7-8): 335–343. doi: https://doi.org/10.2166/wst.2000.0586
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