Study utilized an electrokinetic (EK) process to investigate the movement and removal of salts in greenhouse soil. Each experiment was operated with a constant voltage gradient of 1 V/cm between 6 to 48 h and used tap water as an electrolyte. A significant amount of anions was removed through electroosmotic flow and electromigration. Nitrates showed the highest removal efficiency (81.86%) after 48 h. However, the removal of cations by EK process was negligible; in fact, the exchangeable concentration of potassium after EK treatment actually increased compared to the initial value. In this experiment, the electrical conductivity of the soil was lowered to 60% of the initial value, signifying that salts were removed by EK. Based on the results of this study, EK can be a very effective technique to control the concentration of salts in saline soil.
Bibliographical noteFunding Information:
This work was supported by the Korea Institute.
- Electrical conductivity
- Electrokinetic remediation
- Ionic mobility
- Saline soil
ASJC Scopus subject areas
- Chemical Engineering(all)
- Process Chemistry and Technology
- Filtration and Separation