Cesium sorption under nonequilibrium conditions
| Autor: | D. Škrtić, N. Filipović-Vinceković |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Acidic Region
Health Toxicology and Mutagenesis Inorganic chemistry Public Health Environmental and Occupational Health Charge density Sorption Electrolyte Alkali metal complex mixtures Pollution Analytical Chemistry chemistry.chemical_compound Montmorillonite Nuclear Energy and Engineering chemistry Desorption Radiology Nuclear Medicine and imaging Dissolution cesium sorption montmorillonite Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry Articles. 163:205-211 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/bf02034794 |
| Popis: | Sorption of cesium on montmorillonite has been studied under nonequilibrium conditions. Depending on the initial pH of the solutions, initial fast sorption was followed by slow additional sorption (acidic region) or desorption (basic region). Dissolution of main montmorillonite constituents in acidic solutions results in progressive changes in both surface structure and charge distribution. Additional sorption may be explained by an increase of charge density at the montmorillonite/electrolyte interface. Suspensions aged in basic region revealed partial cesium desorption. The diminishing of sorptive properties is explained by the formation of secondary precipitate which may effectively coat the montmorillonite/electrolyte interface and/or readsorption of released clay constituents. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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