Electrokinetic Remediation: I. Modeling of simple systems
- Vanderbilt Univ., Nashville, TN (United States)
- Universidad de Malaga (Spain)
A one-dimensional model is developed for simulating the electrokinetic treatment of saturated porous media contaminated with an ionic salt. Simulations of simple, unenhanced electrokinetic treatment for the removal of a nonamphoteric salt such as cadmium sulfate exhibit a severe drop-off in electric current and in remediation rate after about 50-60% of the cation has been removed. Simulation of electrokinetic treatment in which the OH{sup -} generated in the cathode compartment is partially neutralized by the addition of acid show rapid and complete removal of the cation. Partial neutralization of H{sup +} in the anode compartment by addition of base results in immobilization of the toxic metal as the solid hydroxide, although this should be a useful technique for the removal of arsenate and selenate.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 146155
- Journal Information:
- Separation Science and Technology, Vol. 30, Issue 15; Other Information: PBD: Sep 1995
- Country of Publication:
- United States
- Language:
- English
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