Effect of grain size on the sorption and desorption of SeO42- and SeO32- in columns of crushed granite and fracture infill from granitic water under dynamic conditions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F13%3A%230001383" target="_blank" >RIV/46356088:_____/13:#0001383 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/13:00216946
Result on the web
<a href="http://dx.doi.org/10.1007/s10967-013-2429-7" target="_blank" >http://dx.doi.org/10.1007/s10967-013-2429-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10967-013-2429-7" target="_blank" >10.1007/s10967-013-2429-7</a>

Result language
angličtina
Original language name
Effect of grain size on the sorption and desorption of SeO42- and SeO32- in columns of crushed granite and fracture infill from granitic water under dynamic conditions
Original language description
The sorption of 2 x 10(-5) mol/dm(3) Na2SeO4 and Na2SeO3 dissolved in synthetic granitic water (SGW) were investigated in columns of crushed granite and fracture infill (clay minerals) of various grain sizes. Desorption was studied using pure SGW. The goal of study was the quantification of the effect of grain size on the retardation and distribution coefficients of SeO4 (2-) and SeO3 (2-), as well as on the other transport parameters (Peclet number and hydrodynamic dispersion coefficient). A model based on the erfc-function, assuming a non-linear reversible equilibrium sorption/desorption isotherm, was used for evaluation of sorption/desorption and transport parameters. The determination of selenium was performed using an ICP-MS technique. The experimental breakthrough curves were fitted using non-linear regression procedure, in the course of which the parameters mentioned were sought. Summing up, no sorption was recorded in the case of SeO4 (2-) under these conditions. The values of
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CH - Nuclear and quantum chemistry, photo chemistry
OECD FORD branch
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Project
<a href="/en/project/FR-TI1%2F362" target="_blank" >FR-TI1/362: Research of properties of materials for safe disposal of radioactive waste and development of procedures for their assessment</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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