Zy. Tao et al., SORPTION AND DESORPTION OF RADIOIODINE ON CALCAREOUS SOIL AND ITS SOLID COMPONENTS, Journal of radioanalytical and nuclear chemistry, 214(2), 1996, pp. 147-157
The effect of different solid components of calcareous soil on the ret
ention of I was investigated by a batch technique and selective extrac
tion method, and the effect of gamma-irradiation was also investigated
. The sorption and desorption isotherms of I on the one untreated, thr
ee treated soils and the calcareous soil irradiated with gamma-rays we
re determined at 30 degrees C, pH 8.1+/-0.2 and in the presence of 1.0
x10(-4)M or 0.67x10(-5)M CaCl2. It was found that the sorption-desorpt
ion hysteresis on the calcareous soil actually occurs on the same time
scale, that iodine can be easily transported in the calcareous soil a
nd that the exceptionally high contribution of organic matter to the i
odine sorption is demonstrated.