Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10814
Title: Determination and analysis of sorption of 137Cs to soils in Hong Kong reservoir
Authors: Man, CK
Cheung, YP
Keywords: 137C
Distribution coefficient
Soils in Hong Kong
Sorption
Issue Date: 2002
Source: Environmental pollution, 2002, v. 117, no. 2, p. 357-364 How to cite?
Journal: Environmental Pollution 
Abstract: Soils from a local reservoir had been analyzed for their physical and chemical properties, distribution coefficients Kd and sorption rates for 137Cs. It was found that soils in Hong Kong were relatively low in organic matter and more acidic than those in some other countries. In sorption experiments, the rates of decrease in water activity concentration were initially very high, higher for larger mass of soils added, and then slowed down. The larger the mass, the shorter was the time for equilibrium. Three isotherms had been obtained by varying one of the three parameters (initial water activity concentration, slurry ratio and particle size) at a time. For constant initial water activity concentration and random sizes, percent sorption increased with slurry ratio. For soils of constant mass and random sizes, percent sorption decreased with increasing initial water activity concentration. For constant initial water activity concentration and slurry ratio, percent sorption increased with decreasing size of soil particles. A simple logistic model was developed to explain some of the findings.
URI: http://hdl.handle.net/10397/10814
ISSN: 0269-7491
DOI: 10.1016/S0269-7491(01)00166-X
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