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Abstract
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Article Information:
Laboratory Study on Integrated Solar Electrokinetic Barrier for Preventing Cadmium Contamination
Eltayeb Mohamedelhassan
Corresponding Author: Eltayeb Mohamedelhassan
Submitted: 2011 March, 30
Accepted: 2011 May, 13
Published: 2011 August, 10 |
Abstract:
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The aim of this laboratory study is to investigate the use of electrokinetic barrier powered by solar
panel to prevent Cadmium (Cd) contamination of clayey soil by hydraulic flow. Along with the solar panel, DC
power supply was also used as a power source for comparison. The electric field generated by the solar panel
was only during the daytime (14 h 45 min per day) while the DC power supply provided the barrier with
continuous electric field. The tests were carried out in five identical electrokinetic column cells. The hydraulic
flow was generated by a constant gradient of 10. The results showed that electrokinetic barrier with solar power
of peak electric field gradient of 2 V/cm during the daytime was equally efficient to a barrier that was powered
continuously at 2 V/cm to stop the migration of Cd by the hydraulic flow. The results suggested that the
generated electro-osmosis and electro-migration flux were stronger than the hydraulic flow as the Cd was found
migrated up-gradient of the hydraulic flow. The volume of water collected during the test, water content
distribution, pH profile, and Cd concentration after the test were consistent with electrokinetic phenomenon.
Key words: Electro-migration, electro-osmsois, electrolysis reactions, heavy metal pollution of soil, hydraulic flow, solar energy,
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Cite this Reference:
Eltayeb Mohamedelhassan, . Laboratory Study on Integrated Solar Electrokinetic Barrier for Preventing Cadmium Contamination. Research Journal of Environmental and Earth Sciences, (5): 521-523.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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