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TY - JOUR
AU - Dimović, Slavko
AU - Nikezić, Dušan P.
AU - Šljivić-Ivanović, Marija Z.
AU - Jelić, Ivana V.
AU - Stanić, Vojislav
AU - Radenković, Mirjana
AU - Lončar, Boris B.
PY - 2019
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5893
AB - The possibility of retaining Cs+ and Co2+ bound by immobilization processes in the cement matrix is defined as the subject of its investigation: the cement matrix formulation, the water/ cement ratio, the amount of waste, and the porosity of such a structure. Implementing the standard leaching method by Hespe the possibility of comparing different authors’ results was achieved. Diffusion and semi-empirical model were used to investigate the transport phenomenon in order to predict the leaching level for a long period of time. Leaching of Co2+ and Cs+ ions under dynamic conditions immobilized in the cement matrix dynamic conditions decreases with the increase of the sludge content, regarding porosity increase. The effects of the diffusion and surface washing are equalized, and the contribution ofthe matrix dissolution to the Cs + and Co2+ transport in the cement porous media increases, on average, for one order of magnitude. The semi-empirical model gives a better approximation for Co2+ and Cs+ leaching process for the duration ofthe experiment while both models significantly approximate leaching results in dynamic conditions. © 2019, Vinca Inst Nuclear Sci. All rights reserved.
T2 - Nuclear Technology and Radiation Protection
T1 - Leaching kinetics of Cs+ and Co2+ under dynamic conditions
EP - 248
IS - 3
SP - 243
VL - 34
DO - 10.2298/NTRP190506028D
ER -
@article{
author = "Dimović, Slavko and Nikezić, Dušan P. and Šljivić-Ivanović, Marija Z. and Jelić, Ivana V. and Stanić, Vojislav and Radenković, Mirjana and Lončar, Boris B.",
year = "2019",
abstract = "The possibility of retaining Cs+ and Co2+ bound by immobilization processes in the cement matrix is defined as the subject of its investigation: the cement matrix formulation, the water/ cement ratio, the amount of waste, and the porosity of such a structure. Implementing the standard leaching method by Hespe the possibility of comparing different authors’ results was achieved. Diffusion and semi-empirical model were used to investigate the transport phenomenon in order to predict the leaching level for a long period of time. Leaching of Co2+ and Cs+ ions under dynamic conditions immobilized in the cement matrix dynamic conditions decreases with the increase of the sludge content, regarding porosity increase. The effects of the diffusion and surface washing are equalized, and the contribution ofthe matrix dissolution to the Cs + and Co2+ transport in the cement porous media increases, on average, for one order of magnitude. The semi-empirical model gives a better approximation for Co2+ and Cs+ leaching process for the duration ofthe experiment while both models significantly approximate leaching results in dynamic conditions. © 2019, Vinca Inst Nuclear Sci. All rights reserved.",
journal = "Nuclear Technology and Radiation Protection",
title = "Leaching kinetics of Cs+ and Co2+ under dynamic conditions",
pages = "248-243",
number = "3",
volume = "34",
doi = "10.2298/NTRP190506028D"
}
Dimović, S., Nikezić, D. P., Šljivić-Ivanović, M. Z., Jelić, I. V., Stanić, V., Radenković, M.,& Lončar, B. B.. (2019). Leaching kinetics of Cs+ and Co2+ under dynamic conditions. in Nuclear Technology and Radiation Protection, 34(3), 243-248.
https://doi.org/10.2298/NTRP190506028D
Dimović S, Nikezić DP, Šljivić-Ivanović MZ, Jelić IV, Stanić V, Radenković M, Lončar BB. Leaching kinetics of Cs+ and Co2+ under dynamic conditions. in Nuclear Technology and Radiation Protection. 2019;34(3):243-248.
doi:10.2298/NTRP190506028D .
Dimović, Slavko, Nikezić, Dušan P., Šljivić-Ivanović, Marija Z., Jelić, Ivana V., Stanić, Vojislav, Radenković, Mirjana, Lončar, Boris B., "Leaching kinetics of Cs+ and Co2+ under dynamic conditions" in Nuclear Technology and Radiation Protection, 34, no. 3 (2019):243-248,
https://doi.org/10.2298/NTRP190506028D . .
