A Study of Adsorption Behaviour of Humic Acid and Americium on the Kaolinite
- 1. Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)
- 2. Department of Environmental Engineering, Seoul National University, Seoul (Korea, Republic of)
Description
In this study, the adsorption reactions in the binary component system such as kaolinite-humic acid, kaolinite-americium and humic acid-americium were investigated. After performing the basic physico-chemical properties of the kaolinite, the adsorption reactions of the humic acid on the kaolinite were carried out with varying concentration of humic acid and ion strength, and pH. With increasing HA concentration and pH, the sorption of HA onto KA decreased, while the sorption of HA onto KA increased with increasing ionic strength. Also, with varying pH, the adsorption reactions of the americium-kaolinite and americium-humic acid were studied. In the acid and neutral region, Am easily adsorbed on the HA, while the sorption of Am on the HA in the alkali region decreased because of electrostatic repulsion. The results from these studies make it possible to understand the characteristics of adsorption behaviour of the americium by the humic acid in the water environment.
Additional details
Publishing Information
- Journal Title
- Journal of the Korean Radioactive Waste Society
- Journal Volume
- 8
- Journal Issue
- 2
- Series
- 15 refs, 8 figs, 1 tab
- Journal Page Range
- p. 107-113
- ISSN
- 1738-1894
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 45012294
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ADSORPTION; AMERICIUM; CHEMICAL PROPERTIES; HUMIC ACIDS; KAOLINITE; PHYSICAL PROPERTIES
- Descriptors DEC
- ACTINIDES; ELEMENTS; METALS; MINERALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; SILICATE MINERALS; SORPTION; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS