TY  - JOUR
AU  - Nenadović, Snežana S.
AU  - Kljajević, Ljiljana M.
AU  - Seslak, Bojan Z.
AU  - Obradović, Nina
AU  - Vukanac, Ivana S.
AU  - Pavlović, Vladimir
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3426
AB  - The aim of this study was to investigate the Cs+ ions sorption on natural minerals clinoptilolite. The analysis of clinoptilolite and clinoptilolite with adsorbed Cs+ ion was conducted by X-ray diffraction, scanning electron microscopy, X-ray fluorescence, and gamma spectrometry. The specific activity of naturally occurring radionuclides in clinoptilolite was determined by gamma spectrometry by using the HPGe semiconductor detector. Obtained activity concentrations ranged from 49 Bq/kg to 810 Bq/kg for K-40, 5.7 Bq/kg to 10 Bq/kg for U-238, 5.8 Bq/kg to 70 Bq/kg for Th-232(Ac-228), and the presence of artificial radionuclides was not detected (Cs-137  lt  0.02 Bq/kg). The study of the thermal decomposition of raw clinoptilolite and Cs adsorbed clinoptilolite by differential thermal analysis is presented in this paper. The activation energy of the reaction phase transformation of raw clinoptilolite is 156.7 kJ/mol, while Cs adsorbed clinoptilolite is 121.7 kJ/mol. The lower value of activation energy reaction of the phase transformation Cs adsorbed clinoptilolite indicates that Cs which is adsorbed destabilizes the crystal structure of clinoptilolite and thus facilitates the transition to the amorphous state.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Nuclear Technology & Radiation Protection
T1  - Cesium removal from aqueous solution by natural mineral clinoptilolite
EP  - 141
IS  - 2
SP  - 135
VL  - 29
DO  - 10.2298/NTRP1402135N
ER  - 

@article{
author = "Nenadović, Snežana S. and Kljajević, Ljiljana M. and Seslak, Bojan Z. and Obradović, Nina and Vukanac, Ivana S. and Pavlović, Vladimir",
year = "2014",
abstract = "The aim of this study was to investigate the Cs+ ions sorption on natural minerals clinoptilolite. The analysis of clinoptilolite and clinoptilolite with adsorbed Cs+ ion was conducted by X-ray diffraction, scanning electron microscopy, X-ray fluorescence, and gamma spectrometry. The specific activity of naturally occurring radionuclides in clinoptilolite was determined by gamma spectrometry by using the HPGe semiconductor detector. Obtained activity concentrations ranged from 49 Bq/kg to 810 Bq/kg for K-40, 5.7 Bq/kg to 10 Bq/kg for U-238, 5.8 Bq/kg to 70 Bq/kg for Th-232(Ac-228), and the presence of artificial radionuclides was not detected (Cs-137  lt  0.02 Bq/kg). The study of the thermal decomposition of raw clinoptilolite and Cs adsorbed clinoptilolite by differential thermal analysis is presented in this paper. The activation energy of the reaction phase transformation of raw clinoptilolite is 156.7 kJ/mol, while Cs adsorbed clinoptilolite is 121.7 kJ/mol. The lower value of activation energy reaction of the phase transformation Cs adsorbed clinoptilolite indicates that Cs which is adsorbed destabilizes the crystal structure of clinoptilolite and thus facilitates the transition to the amorphous state.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Nuclear Technology & Radiation Protection",
title = "Cesium removal from aqueous solution by natural mineral clinoptilolite",
pages = "141-135",
number = "2",
volume = "29",
doi = "10.2298/NTRP1402135N"
}

Nenadović, S. S., Kljajević, L. M., Seslak, B. Z., Obradović, N., Vukanac, I. S.,& Pavlović, V.. (2014). Cesium removal from aqueous solution by natural mineral clinoptilolite. in Nuclear Technology & Radiation Protection
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 29(2), 135-141.
https://doi.org/10.2298/NTRP1402135N

Nenadović SS, Kljajević LM, Seslak BZ, Obradović N, Vukanac IS, Pavlović V. Cesium removal from aqueous solution by natural mineral clinoptilolite. in Nuclear Technology & Radiation Protection. 2014;29(2):135-141.
doi:10.2298/NTRP1402135N .

Nenadović, Snežana S., Kljajević, Ljiljana M., Seslak, Bojan Z., Obradović, Nina, Vukanac, Ivana S., Pavlović, Vladimir, "Cesium removal from aqueous solution by natural mineral clinoptilolite" in Nuclear Technology & Radiation Protection, 29, no. 2 (2014):135-141,
https://doi.org/10.2298/NTRP1402135N . .

TY  - JOUR
AU  - Nenadović, Snežana S.
AU  - Nenadović, Miloš
AU  - Kljajević, Ljiljana M.
AU  - Vukanac, Ivana S.
AU  - Poznanović, Maja
AU  - Mihajlović-Radosavljević, Ana
AU  - Pavlović, Vladimir
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2945
AB  - In the present work, naturally occurring radionuclides U-238, Th-232 and K-40 were measured in soil samples from the cultivated and undisturbed areas in Rudovci, municipality of Lazarevac, Serbia. There were three profiles, each profile divided into four horizons, giving the twelve soil samples. The specific activity of U-238, Th-232 and K-40 in soil and sediment samples was determined by gamma spectrometry using the HPGe semiconductor detector. Obtained activity concentrations ranged from 28.0 to 44.0 Bq/kg for U-238, from 59.4 to 71.4 Bq/kg for Th-232 and from 335.0 to 517.0 Bq/kg for K-40. The evaluation of the radiological hazards originated from U-238, Th-232 and K-40 in the samples, the absorbed dose rate (D) and the annual effective dose rate (E), calculated in accordance with the UNSCEAR 2000 report, are presented in this paper.
PB  - Elsevier, Amsterdam
T2  - Science of the Total Environment
T1  - Vertical distribution of natural radionuclides in soil: Assessment of external exposure of population in cultivated and undisturbed areas
EP  - 316
SP  - 309
VL  - 429
DO  - 10.1016/j.scitotenv.2012.04.054
ER  - 

@article{
author = "Nenadović, Snežana S. and Nenadović, Miloš and Kljajević, Ljiljana M. and Vukanac, Ivana S. and Poznanović, Maja and Mihajlović-Radosavljević, Ana and Pavlović, Vladimir",
year = "2012",
abstract = "In the present work, naturally occurring radionuclides U-238, Th-232 and K-40 were measured in soil samples from the cultivated and undisturbed areas in Rudovci, municipality of Lazarevac, Serbia. There were three profiles, each profile divided into four horizons, giving the twelve soil samples. The specific activity of U-238, Th-232 and K-40 in soil and sediment samples was determined by gamma spectrometry using the HPGe semiconductor detector. Obtained activity concentrations ranged from 28.0 to 44.0 Bq/kg for U-238, from 59.4 to 71.4 Bq/kg for Th-232 and from 335.0 to 517.0 Bq/kg for K-40. The evaluation of the radiological hazards originated from U-238, Th-232 and K-40 in the samples, the absorbed dose rate (D) and the annual effective dose rate (E), calculated in accordance with the UNSCEAR 2000 report, are presented in this paper.",
publisher = "Elsevier, Amsterdam",
journal = "Science of the Total Environment",
title = "Vertical distribution of natural radionuclides in soil: Assessment of external exposure of population in cultivated and undisturbed areas",
pages = "316-309",
volume = "429",
doi = "10.1016/j.scitotenv.2012.04.054"
}

Nenadović, S. S., Nenadović, M., Kljajević, L. M., Vukanac, I. S., Poznanović, M., Mihajlović-Radosavljević, A.,& Pavlović, V.. (2012). Vertical distribution of natural radionuclides in soil: Assessment of external exposure of population in cultivated and undisturbed areas. in Science of the Total Environment
Elsevier, Amsterdam., 429, 309-316.
https://doi.org/10.1016/j.scitotenv.2012.04.054

Nenadović SS, Nenadović M, Kljajević LM, Vukanac IS, Poznanović M, Mihajlović-Radosavljević A, Pavlović V. Vertical distribution of natural radionuclides in soil: Assessment of external exposure of population in cultivated and undisturbed areas. in Science of the Total Environment. 2012;429:309-316.
doi:10.1016/j.scitotenv.2012.04.054 .

Nenadović, Snežana S., Nenadović, Miloš, Kljajević, Ljiljana M., Vukanac, Ivana S., Poznanović, Maja, Mihajlović-Radosavljević, Ana, Pavlović, Vladimir, "Vertical distribution of natural radionuclides in soil: Assessment of external exposure of population in cultivated and undisturbed areas" in Science of the Total Environment, 429 (2012):309-316,
https://doi.org/10.1016/j.scitotenv.2012.04.054 . .

TY  - JOUR
AU  - Nenadović, Snežana S.
AU  - Nenadović, Miloš
AU  - Vukanac, Ivana S.
AU  - Djordjević, Aleksandar
AU  - Dragićević, Slavoljub S.
AU  - Lješević, Milutin A.
PY  - 2010
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2401
AB  - This paper introduces the distribution BACKGROUND:  and unique characteristics of 137Cs in cultivated and undisturbed areas. The samples were taken from three measuring points of the depth of 1 m. We examined all visible horizons and determined their classifications. There were four horizons in one profile. All four horizons had a different zone thickness. 137Cs is an artificial radionuclide that has been produced primarily as a result of atmospheric thermonuclear weapon tests since the 1950. Also, the great amount of 137Cs (~85 PBq) was released in the atmosphere during the Chernobyl accident. So, 137Cs has been globally distributed, with fallout rates generally related to latitude and precipitation depth. The movement of 137Cs in soil is primarily controlled by soil erosion processes, such as processes caused by water, wind, and tillage. Thus, 137Cs is a valuable tracer to study soil erosion. The specific activity of 137Cs in soil and sediment samples was determined by using the gamma-spectrometric method.
AB  - U ovom radu prikazana je rasprostranjenost i jedinstvene karakteristike cezijuma-137 kako u obradivim tako i u neobradivim zemljištima. Uzorkovanje je vršeno na tri merna mesta do 1 m dubine. Ispitani su svi vidljivi horizonti i utvrđeno je postojanje 4 horizonta u jednom profilu, koji su različitih debljina. Cezijum-137 je veštački radioizotop koji je nastao kao posledica termonuklearnih reakcija ispitivanog oružja u atmosferi zemlje kao i neželjeni proizvod nuklearnih akcidenata (Černobil, 1986). Ovaj radioizotop je široko rasprostranjen u celom svetu, gde se njegova migracija u zemljištu prati pomoću intenziteta erozije potpomognutim vodom i vetrom. Stoga je cezijum-137 važan faktor pri određivanju intenziteta erozije kako u zemljištu tako i u sedimentima, te je određena njegova specifična aktivnost korišćenjem gama spektrometrije.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Nuclear Technology & Radiation Protection
T1  - Vertical distribution of 137Cs in cultivated and undisturbed areas
T1  - Vertikalna rasprostranjenost cezijuma-137 u obradivim i neobradivim zemljištima
EP  - 36
IS  - 1
SP  - 30
VL  - 25
DO  - 10.2298/NTRP1001030N
ER  - 

@article{
author = "Nenadović, Snežana S. and Nenadović, Miloš and Vukanac, Ivana S. and Djordjević, Aleksandar and Dragićević, Slavoljub S. and Lješević, Milutin A.",
year = "2010",
abstract = "This paper introduces the distribution BACKGROUND:  and unique characteristics of 137Cs in cultivated and undisturbed areas. The samples were taken from three measuring points of the depth of 1 m. We examined all visible horizons and determined their classifications. There were four horizons in one profile. All four horizons had a different zone thickness. 137Cs is an artificial radionuclide that has been produced primarily as a result of atmospheric thermonuclear weapon tests since the 1950. Also, the great amount of 137Cs (~85 PBq) was released in the atmosphere during the Chernobyl accident. So, 137Cs has been globally distributed, with fallout rates generally related to latitude and precipitation depth. The movement of 137Cs in soil is primarily controlled by soil erosion processes, such as processes caused by water, wind, and tillage. Thus, 137Cs is a valuable tracer to study soil erosion. The specific activity of 137Cs in soil and sediment samples was determined by using the gamma-spectrometric method., U ovom radu prikazana je rasprostranjenost i jedinstvene karakteristike cezijuma-137 kako u obradivim tako i u neobradivim zemljištima. Uzorkovanje je vršeno na tri merna mesta do 1 m dubine. Ispitani su svi vidljivi horizonti i utvrđeno je postojanje 4 horizonta u jednom profilu, koji su različitih debljina. Cezijum-137 je veštački radioizotop koji je nastao kao posledica termonuklearnih reakcija ispitivanog oružja u atmosferi zemlje kao i neželjeni proizvod nuklearnih akcidenata (Černobil, 1986). Ovaj radioizotop je široko rasprostranjen u celom svetu, gde se njegova migracija u zemljištu prati pomoću intenziteta erozije potpomognutim vodom i vetrom. Stoga je cezijum-137 važan faktor pri određivanju intenziteta erozije kako u zemljištu tako i u sedimentima, te je određena njegova specifična aktivnost korišćenjem gama spektrometrije.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Nuclear Technology & Radiation Protection",
title = "Vertical distribution of 137Cs in cultivated and undisturbed areas, Vertikalna rasprostranjenost cezijuma-137 u obradivim i neobradivim zemljištima",
pages = "36-30",
number = "1",
volume = "25",
doi = "10.2298/NTRP1001030N"
}

Nenadović, S. S., Nenadović, M., Vukanac, I. S., Djordjević, A., Dragićević, S. S.,& Lješević, M. A.. (2010). Vertical distribution of 137Cs in cultivated and undisturbed areas. in Nuclear Technology & Radiation Protection
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 25(1), 30-36.
https://doi.org/10.2298/NTRP1001030N

Nenadović SS, Nenadović M, Vukanac IS, Djordjević A, Dragićević SS, Lješević MA. Vertical distribution of 137Cs in cultivated and undisturbed areas. in Nuclear Technology & Radiation Protection. 2010;25(1):30-36.
doi:10.2298/NTRP1001030N .

Nenadović, Snežana S., Nenadović, Miloš, Vukanac, Ivana S., Djordjević, Aleksandar, Dragićević, Slavoljub S., Lješević, Milutin A., "Vertical distribution of 137Cs in cultivated and undisturbed areas" in Nuclear Technology & Radiation Protection, 25, no. 1 (2010):30-36,
https://doi.org/10.2298/NTRP1001030N . .