Electrokinetic Restoration of Sulfate‐Accumulated Saline Greenhouse Soil

Cho, Jung-Min; Kim, Do-Hyung; Yang, Jung‐Seok; Baek, Kitae

doi:10.1002/clen.201000497

Cited by 20 publications

(8 citation statements)

References 25 publications

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“…Electromigration, namely the transportation of ions toward oppositely charged electrodes, is the major mechanism for separating and removing salts ). Electrokinetic process was performed by Cho et al (2011) to restore sulfate-originated saline soil and to evaluate the effect of treatment duration, and found that after electrokinetic treatment, the electrical conductivity (EC) of the soil, an indicator of soil salinity, decreased to 1.93 dS×m 1 from an initial value of 5.3 dS×m 1 and the distribution of sulfate was similar to that of EC. By using column techniques the present study has been conducted to assess efficiency of electrochemical process to reclaim saline-sodic soils using.…”

Section: Introductionmentioning

confidence: 99%

Reclaiming Saline-Sodic Soils Using Electrochemical Processes: A Case Study From Sahl El-Tina Plain, Egypt

Abdel-Fattah¹

2014

Soil Science Annual

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A leaching experiment was conducted using column techniques assessing efficiency of electrochemical process to reclaim saline-sodic soils. Soil material was collected from Sahl El-Tina plain, which located in North West coast of Sinai, Egypt. The experiment was designed as factorial randomized complete block and all treatments were replicated three times. Two 2.5 cm diameter×30 cm height mild stainless steel tubes were inserted into the soil matrix to serve as electrodes (i.e. cathode and anode). Distance between cathode and anode was 10 cm. Electrodes were supplied by a direct current (DC) power supply; Volt ages of 0.3 or 9 Volt. Leaching was done using the intermittent method so as to add portions to the already saturated soil columns, and obtain leachates equal to the added portions. Pore volume 0.1 PV was used in the leaching processes which are equal 498.4 cm 3 , i.e. PV being volume of pores per column, thus 1 PV equals volume of pores (cm 3 ) expressed as water quantity. Electric remediation increased ionic mobility and separated salts from soil. All treatments decreased soil EC and soil sodicity expressed as SAR and ESP. Results showed that 9 Volt treatment was more effective in decreasing the soil EC and soil sodicity than the other treatments. Efficiency of treatments were 9-Volt > 3-Volt > leaching alone (non-DC treatment). This study suggests that leaching using direct current (DC) led to improvement of the chemical properties of saline sodic soils and required a short time to reclaim saline-sodic soils compared with leaching alone.

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Section: Introductionmentioning

confidence: 99%

Reclaiming Saline-Sodic Soils Using Electrochemical Processes: A Case Study From Sahl El-Tina Plain, Egypt

Abdel-Fattah¹

2014

Soil Science Annual

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“…전기동력학적 정화기술은 이온성 오염물질을 토양 으로부터 제거하기 위해 고안된 방법이다 (박성우 외, 2008; 조정민 외, 2009; 박근용 외, 2010). 최근의 연구 결과에 의하면 전기동력학적 방법은 염류집적 토양에서 염류를 효과적으로 제거할 수 있다고 보고되었다 (Jia et al, 2005;Cho et al, 2009Cho et al, , 2010Cho et al, , 2011Ha et al, 2009;Kim et al, 2011;Lee et al, 2011). Cho et al(2009 (정병간 외, 1998).…”

Section: 염류집적 농경지의 경우 직접적인 정화기술을 적용하기unclassified

Electrokinetic Restoration of Saline Soil Accumulated with Nitrate and Sulfate

Cho¹,

Jo²,

Kim³

et al. 2011

Journal of Soil and Groundwater Environment

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The electrokinetic transport characteristics of salts were investigated using nitrate and sulfate accumulated saline greenhouse soil. Within 8 days, 95% of nitrate was removed from the soil, while sulfate removal was 19% for 8 days. The low removal of sulfate came from adsorption reaction on the soil particles or organic matter and precipitation with calcium. Divalent cations such as calcium and magnesium were transported toward cathode via electromigration, and most monovalent cation such as potassium was removed. The pattern of residual electrical conductivity was similar with that of sulfate. Based on the results, electrokinetic technique is effective to restore nitrate-accumulated saline soil, but is not effective to restore sulfate-accumulated soil.

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“…Bioremediation and chemical restoration are less effective, time-consuming and extremely expensive [10,11]. Recently, the Electrokinetic (EK) technique has removed salts from saline soil in a laboratory scale [12][13][14] and pilot-scale works [15][16][17]. Many studies on desalination using EK remediation have been reported [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Improvement of Saline Harran Soils by Electrokinetic Remediation Method

Karabulut

2019

MEJS

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Soil salinity has become one of the environmental issues around the world. The most typical example in Turkey was the soil salinization in Harran and Akçakale Plains in recent years. Especially the Harran Plain has the big potential of water and land resources. Irrigated farming is common in the plain. Excessive and uncontrolled irrigation contributed to the high groundwater level and soil salinity in the region. The deficiency of the drainage network in the farmlands was the most important factor in the salinity. In-field drainage systems are newly established. In some areas, irrigation is conducted through the main drainage channel with high salt content (13.5 dS/m). On the other hand, pumping irrigation waters in Akçakale region have high salt content. This problem has grown especially when dealing with low-permeable soils where conventional remedial techniques are inadequate and often ineffective. Electrokinetic treatment is an innovative and clean technology for the restoration of saline soils. This process has proven to be the most effective, promising technique for the optimal and sustainable improvement of salt-affected soils.

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Electrokinetic Restoration of Sulfate‐Accumulated Saline Greenhouse Soil

Cited by 20 publications

References 25 publications

Reclaiming Saline-Sodic Soils Using Electrochemical Processes: A Case Study From Sahl El-Tina Plain, Egypt

Reclaiming Saline-Sodic Soils Using Electrochemical Processes: A Case Study From Sahl El-Tina Plain, Egypt

Electrokinetic Restoration of Saline Soil Accumulated with Nitrate and Sulfate

Improvement of Saline Harran Soils by Electrokinetic Remediation Method

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