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Soil Science Annual

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

Mohamed K. Abdel-Fattah
  • Corresponding author
  • Soil Science Department, Faculty of Agriculture, Zagazig University, Egypt
  • Email:
Published Online: 2014-10-29 | DOI: https://doi.org/10.2478/ssa-2014-0008

Abstract

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 diameterx30 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 cm3, i.e. PV being volume of pores per column, thus 1 PV equals volume of pores (cm3) 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.

Key words:: saline-sodic soils; salt-affected soils; soil reclamation; electrochemical remediation; leaching; Egypt

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About the article

Received: 2014-03-06

Accepted: 2014-05-29

Published Online: 2014-10-29



Citation Information: Soil Science Annual, ISSN (Online) 2300-4975, DOI: https://doi.org/10.2478/ssa-2014-0008. Export Citation

© 2014 Mohamed K. Abdel-Fattah. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)

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