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Sorption-Desorption Assessment to Characterize Radionuclides Contaminated Soils (overview) |
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PP: 37-47 |
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doi:10.18576/jrna/070105
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Author(s) |
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M, F. Abdel-Sabour,
M, A., Rizk,
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Abstract |
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| Knowledge of radio-nuclides environmental pathways, and exposure, is an important aspect of any strategy to protect the public and the natural environments. The prediction of radionuclides fate and behavior in the environment is largely governed by sorption/desorption processes.
Models for the description of metal sorption are still mostly based on empirical solid-liquid distribution coefficient (Kd) values. a Kd value, which quantifies the distribution of a dissolved element between the solution and the solid phases present along relevant transport pathways. In any case, the evaluation of the distribution coefficient, Kd, is operationally needy and firmly differ due to a few variables. To assess the risk derived from the absorption of radionuclides in soils; after a continuous or an accidental release; sorption-desorption assessments at a laboratory scale are required.
Competitive sorption between sorbates has been recognized as an important factor in determining contaminant migration in the environment. This review paper discusses the most significant aspects of sorption processes and properties of the soil-water interface.
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