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随着原子能和平利用事业的发展,环境中的长半衰期放射性核素~(129)I的量不断增加。土壤是碘元素转移到食物链的必经之道,因此,研究放射性碘元素在土壤中的动向是一项重要的课题。土壤中的放射性碘元素是以各种化学形态存在的,其在土壤中的动态则因其化学形态的不同而有所不同。本文主要目的是研究不同化学形态的放射性碘元素在土壤中的吸附特性,并试图阐明土壤的化学性质与吸附特性的关系。
With the development of the peaceful use of atomic energy, the amount of long-lived radionuclide (129) I in the environment has been continuously increasing. Soils are essential for the transfer of iodine to the food chain. Therefore, studying the movement of radioactive iodine in the soil is an important issue. Radioactive iodine in soil exists in various chemical forms, and its dynamics in the soil vary according to its chemical form. The main purpose of this paper is to study the adsorption characteristics of radioactive iodine in different chemical forms in soils and to elucidate the relationship between soil chemical properties and adsorption characteristics.