Sorption/desorption of Cs on clay and soil fractions from various regions of Turkey

Date

1988-2

Author

Aksoyoglu, S.
Göktürk, H.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

222
views

0
downloads

The sorption desorption behaviour of Cs ion in the concentration region of 10−8 to 10−4 meqml−1 have been studied using clay and soil fractions from various regions of Turkey. The sorption curves for all the material studied show similar behaviour indicating at least two different sorption processes. One with high and the other with low distribution coefficients. The results of desorption studies indicate that Cs cation is to a large extent attached to the solid material in a reversible manner. The adsorption isotherms were found to be nonlinear in all cases. The increase og RD values with decreasing particle size in most cases, suggests that sorption and or exchange is primarily a surface phenomenon in the clay and soil fractions studied.

Subject Keywords

Environmental Engineering, Waste Management and Disposal, Pollution, Environmental Chemistry

URI

https://hdl.handle.net/11511/51965

Journal

Science of The Total Environment

DOI

https://doi.org/10.1016/0048-9697(88)90348-8

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Sorption of radioactive cesium and barium ions onto solid humic acid Celebi, O.; Kilikli, A.; ERTEN, HASAN NİYAZİ (Elsevier BV, 2009-09-15) In this study, the sorption behavior of two important fission product radionuclides ((137)Cs and (140)Ba) onto sodium form of insolubilized humic acid (INaA) were investigated as a function of time, cation concentration and temperature, utilizing the radiotracer method. The sorption processes are well described by both Freundlich and Dubinin-Radushkevich type isotherms. Thermodynamic constants such as: free energy (Delta G(ads)), enthalpy (Delta H(ads)), entropy (Delta S(ads)) of adsorption were determined....
Evaluation of PCB dechlorination pathways in anaerobic sediment microcosms using an anaerobic dechlorination model Demirtepe, Hale; Kjellerup, Birthe; Sowers, Kevin R.; İmamoğlu, İpek (Elsevier BV, 2015-10-15) A detailed quantitative analysis of anaerobic dechlorination (AD) pathways of polychlorinated biphenyls (PCBs) in sediment microcosms was performed by applying an anaerobic dechlorination model (ADM). The purpose of ADM is to systematically analyze changes in a contaminant profile that result from microbial reductive dechlorination according to empirically determined dechlorination pathways. In contrast to prior studies that utilized modeling tools to predict dechlorination pathways, ADM also provides quant...
Quantum chemical treatment of cyanogen azide and its univalent and divalent ionic forms Türker, Burhan Lemi; Atalar, Taner (Elsevier BV, 2008-05-30) An explosive material, cyanogen azide (CN4) and its univalent and divalent anionic and cationic forms have been studied quantum chemically by using different theoretical approaches. In this study, the structures considered have been screened for their relative stabilities. Also, they have been investigated whether the charged forms play a role in the usual explosion process or any electrical charging during storage cause explosion. Various quantum chemical properties are obtained and discussed. It has been ...
Quantum chemical study on 5-nitro-2,4-dihydro-3H-1,2,4-triazol-3-one (NTO) and some of its constitutional isomers Türker, Burhan Lemi; Atalar, Taner (Elsevier BV, 2006-10-11) Presently, certain isomeric compounds of NTO and their tautomers have been investigated by performing density functional theory (DFT) calculations at B3LYP/6-31G(d,p) and ROB3P86/6-311G(d,p) levels and also ab initio calculations at RHF/6-311G(d,p) level. The optimized geometries, vibrational frequencies, electronic structures and some thermodynamical values for the presently considered NTO isomers have been obtained in their ground states. Also, detonation performances were evaluated by the Kammlet-Jacobs ...
SORPTION PROPERTIES OF SILICALITE-1 OF PURE SILICA FORM - THE INFLUENCE OF SORPTION HISTORY ON SORPTION KINETICS OF CRITICALLY SIZED MOLECULES KARSH, H; Çulfaz, Ali; YUCEL, H (Elsevier BV, 1992-07-01) Sorption properties of silicalite-1 samples of pure silica form for some parafinic and aromatic hydrocarbons of different molecular sizes were investigated. It was observed that sorption rates and apparent equilibrium capacities for critically sized molecules, m-xylene and o-xylene, depend on the sorption history of the sample. Sorption of m- and o-xylene proceeded extremely slowly on fresh samples of silicalite-1, whereas sorption rates of these molecules on silicalite-1 samples that had passed through a p...

Citation Formats

S. Aksoyoglu and H. Göktürk, “Sorption/desorption of Cs on clay and soil fractions from various regions of Turkey,” Science of The Total Environment, pp. 269–296, 1988, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51965.