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International Journal of Soil Science
  Year: 2016 | Volume: 11 | Issue: 3 | Page No.: 71-78
DOI: 10.3923/ijss.2016.71.78
 
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Kinetic Assessment of Potential Toxic Elements Desorption from Contaminated Soil Ecosystems Irrigated with Low Quality Water

M. Saber, E. Hoballah, R. Ramadan, Soad El-Ashry and A.M. Zaghloul

Abstract:
Objective: The rates of some Potential Toxic Elements (PTEs) release from three contaminated soil ecosystems with high zinc equivalent values were kinetically compared to select the best remediative management technique(s). Methodology: The sampled soil ecosystems were irrigated with either industrial effluent for more than 80 years (Kafr El-Sheikh site), sewage effluent for more than 50 years (Konbera site) or drainage water mixed with river Nile water for more than 35 years (Sinai site). A kinetic study of PTEs were applied using two empirical models i.e., Modified Freundlich Elovich (MFE), Hoerl and theoretical models, i.e., diffusion and 1st order equations were applied to rate PTEs desorption. Results: All trailed models well described the rate of PTEs desorption from the studied soil ecosystems. According to the rate constants, industrial effluents could be the most hazard type of irrigation water on soil ecosystem, which gave highest rate values of release followed by sewage effluents and for less extent mixed water. Different mechanisms that influence the rates of PTEs desorption took place were discussed. Conclusion: Reuse of LQW in irrigating bears significant risks on different soil ecosystems. Remediation technique(s) should be focused particularly in alluvial clay soil ecosystems.
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How to cite this article:

M. Saber, E. Hoballah, R. Ramadan, Soad El-Ashry and A.M. Zaghloul, 2016. Kinetic Assessment of Potential Toxic Elements Desorption from Contaminated Soil Ecosystems Irrigated with Low Quality Water. International Journal of Soil Science, 11: 71-78.

DOI: 10.3923/ijss.2016.71.78

URL: https://scialert.net/abstract/?doi=ijss.2016.71.78

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