Electrode Configuration for Electrokinetic Restoration of Greenhouse Saline Soil
- Electrode Configuration for Electrokinetic Restoration of Greenhouse Saline Soil
- 조정민; 김도형; 양중석; 백기태
- EKR; Saline soil; Greenhouse
- Issue Date
- Separation science and technology
- VOL 47, NO 11, 1677-1681
- Electrokinetic restoration (EKR) of saline soil has been achieved
successfully on a laboratory scale. In this study, the effectiveness of
an electrokinetic system with one anode in the center of the electrokinetic
cell and two cathodes at the end of the cell was investigated to
simulate the EKR system, with electrodes installed in the ridge and
furrow pattern of a field. Anions were transported toward the anode
centered in the cell, and cations were moved toward both cathodes.
Chloride and nitrate were almost completely removed from the soil;
however, a certain amount of sulfate accumulated in the anode
region. Although the voltage influenced the transport of salts in the
soil, there was no significant increase in the reduction of electrical
conductivity at a higher voltage gradient. The pattern of salt removal
was symmetric around the center anode, and energy consumption
was less than that of a normal system. This means that the system
can be used effectively to remove salts from saline greenhouse soil.
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