Removal of Cadmium from Red Soil by Electrokinetic Method

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Abstract:

A constant direct current density of 0.5 mA/cm2 was applied in a laboratory experiment for studing the feasibility of electrokinetic treatment on the removal of Cd from red soils. The result shows that the removal efficiency of Cd was remarkably pH-dependent. The initial Cd concentration was1490 mg/kg and over 79% of Cd was removed from the red soils after 96 hours’ treatment. The energy expenditure was about 77.6 kW.h/m3 and the cost was 42.6 RMB Yuan/m3, which suggest that electrokinetic soil processing is a promising technology for remedying cd-contaminated red soils.

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Advanced Materials Research (Volumes 518-523)

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3061-3064

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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