Restoration of saline soil in cultivated land using electrokinetic process

Jung Min Cho; Kyung Jo Kim; Keun Yook Chung; Seunghun Hyun; Kitae Baek

doi:10.1080/01496390902983729

Restoration of saline soil in cultivated land using electrokinetic process

Jung Min Cho, Kyung Jo Kim, Keun Yook Chung, Seunghun Hyun, Kitae Baek

Division of Environmental Science and Ecological Engineering

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	2371-2384
Number of pages	14
Journal	Separation Science and Technology
Volume	44
Issue number	10
DOIs	https://doi.org/10.1080/01496390902983729
Publication status	Published - 2009 Jan

Bibliographical note

Funding Information:
This work was supported by the Korea Institute.

Keywords

Electrical conductivity
Electrokinetic remediation
Ionic mobility
Saline soil

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Process Chemistry and Technology
Filtration and Separation

Access to Document

10.1080/01496390902983729

Cite this

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abstract = "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.",

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AU - Cho, Jung Min

AU - Kim, Kyung Jo

AU - Chung, Keun Yook

AU - Hyun, Seunghun

AU - Baek, Kitae

N1 - Funding Information: This work was supported by the Korea Institute.

PY - 2009/1

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N2 - 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.

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Restoration of saline soil in cultivated land using electrokinetic process

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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