Equilibrium and kinetic sorption behaviors of cesium and strontium in soils

The results of field, column and laboratory studies carried out on three types of mineral soils are encloses presented. Based on the field tests, average migration rates of 137Cs were calculated. The highest rate was found for the brown soil (FAO/UNESCO -Cambisol). Cesium migrated with the lowest rate in the podzol soil (FAO/UNESCO -Cambic Podzol). The column experiments confirmed the above observation. In laboratory tests the adsorption and desorption isotherms of Cs were determined on samples taken from 0-2 cm layers of each soil profile. It was found from the calculated partition coefficients that Cs is always irreversibly bonded to some extent, but it appears to be completely and irreversibly immobilized on the podzol soil. The permanent retention of cesium in the podzol soil was also confirmed by microcalorimetric studies. The desorption energy was negligibly small and amounted to -0.21 mJ/g. In the brown soil, containing prevailing amounts of loamy minerals, the desorption energy was found to be 106.89 mJ/g. The investigations are supplemented by the sorption kinetics measurements. These indicate that the adsorption equilibrium is reached after a dozen, up to twenty or so minutes.

show abstract

Investigation of adsorption and vertical migration of137Cs in three kinds of soil at Lublin vicinity

Chibowski

Zygmunt

Klimowicz

1999

J Radioanal Nucl Chem

View full text Add to dashboard Cite

show abstract

Evaluation study of cobalt(II) and strontium(II) sorption–desorption behavior for selection of soil remediation technology

Smičiklas

Dimović

Jović

et al. 2015

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Sorption-desorption properties of cobalt(II) and strontium(II) ions were studied using a soil sample from the vicinity of the Serbian radioactive waste processing and interim storage facilities. The mobility of the cations in the soil was evaluated and compared with the intention to facilitate the selection of optimal remediation strategy in case of accidental soil contamination with radioactive cobalt-60 and strontium-90 isotopes. A systematic sorption study was performed through a series of batch experiments at different aging times, cation concentrations and pH. Kinetics experiments revealed that sorbed amounts of cobalt(II) continuously increased with contact time until quasi-equilibrium was reached, while initial fast strontium(II) sorption was followed by a desorption step. Based on the shapes of the sorption isotherms and calculated sorption parameters, it was concluded that cobalt(II) sorbed more selectively and strongly than strontium(II). Sequential extraction showed that, regardless of the initial content of contaminants in the soil and the aging time, high amounts of both cations were bonded to relatively mobile fractions: strontium(II) in the exchangeable, while cobalt(II) in the carbonate and ferromanganese oxide fraction. Strontium(II) was readily desorbed in acidic, calcium(II) and ethylenediaminetetraacetic acid-containing media, whereas complexing agents such as citric and tartaric acids at low pH were more effective reagents for cobalt(II) desorption. The results from the present study indicate that chemical extraction can be considered as remediation option for strontium(II)-and cobalt(II)-contaminated soil.

show abstract

Ion-exchange and sorption kinetics of cesium and strontium in soils

Liu

Hsu

Chuang

1995

Applied Radiation and Isotopes

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Equilibrium and kinetic sorption behaviors of cesium and strontium in soils

Cited by 10 publications

References 11 publications

Investigation of adsorption and vertical migration of137Cs in three kinds of soil at Lublin vicinity

Investigation of adsorption and vertical migration of137Cs in three kinds of soil at Lublin vicinity

Evaluation study of cobalt(II) and strontium(II) sorption–desorption behavior for selection of soil remediation technology

Ion-exchange and sorption kinetics of cesium and strontium in soils

Contact Info

Product

Resources

About