TY  - CONF
AU  - Mladenović Nikolić, Nataša
AU  - Trivunac, Katarina
AU  - Nenadović, Miloš
AU  - Dolenec, Sabina
AU  - Mrak, Maruša
AU  - Vukanac, Ivana
AU  - Nenadović, Snežana
AU  - Kljajević, Ljiljana M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12174
AB  - In this study, fly ash (FA) from the active and passive cassette TENT A (Nikola Tesla power plant, Obrenovac) is characterized from physicochemical and radiological aspects.Samples of FA consisted of amorphous phase followed by quartz, mullite, plagioclase, K-feldspar, hematite and calcite. As indicated by laser granulometry, the fraction D50 of investigated samples are about 80μm, so based on the above, they belong to coarse ashes.Very important parameter which defines chemical composition of the fly ash as precursor material of clinker or alkali activated materialsis presence of organic matter which is expressed by total organic content (TOC).Assessment of radiation exposure during coal combustion depends on the concentration of radioactive elements in the coal and in the resulting fly ash. Fly ash as industrial waste contains certain concentrations of natural radionuclides that are considered naturally occurring radioactive materials (NORM). The results showed that fly ash has satisfactory radiological properties and can be used as an addition to clinkers, but also as a potential precursor of a new class of alkaline activated materials that can be used in the construction sector.
AB  - Procena izloženosti zračenju pri sagorevanju uglja zavisi od koncentracije radioaktivnih elemenata u uglju i u letećem pepelu koji nastaje. Uzorci letećeg pepela se sastoje od amorfne faze praćene kvarcom, mulitom, plagioklasom, K-feldspatom, hematinom, kalcitom. Kao rezultat laserske granulometrije, frakcija D50 za ispitivane uzorke je približno 80 μm, tako da na osnovu navedenog, leteći pepeli predstavljaju pepele krupnih čestica. Veoma važan parametar je prisustvo organske materije koje se izražava ukupnim organskim sadržajem. Leteći pepeli kao industrijski ostaci sadrže određene koncentracije prirodnih radionuklida koji se smatraju prirodnim radioaktivnim materijalima (NORM). U ovojm istraživanju, leteći pepeo iz aktivne i pasivne kasete TENT A (termoelektrana Nikola Tesla, Obrenovac) karakteriše se sa radiološkog i fizičko-hemijskog aspekta. Rezultati su pokazali da leteći pepeo ima zadovoljavajuća radiološka svojstva i da se može koristiti kao dodatak klinkerima, ali i kao potencijalni precursor nove klase alkalno aktiviranih materijala koji se mogu primeniti u građevinskom sektoru.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Fly-Ash for Usage in the Building Material Industry
T1  - Upotreba letećeg pepela u industriji građevinskog materijala
SP  - 128
EP  - 136
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12174
ER  - 

@conference{
author = "Mladenović Nikolić, Nataša and Trivunac, Katarina and Nenadović, Miloš and Dolenec, Sabina and Mrak, Maruša and Vukanac, Ivana and Nenadović, Snežana and Kljajević, Ljiljana M.",
year = "2023",
abstract = "In this study, fly ash (FA) from the active and passive cassette TENT A (Nikola Tesla power plant, Obrenovac) is characterized from physicochemical and radiological aspects.Samples of FA consisted of amorphous phase followed by quartz, mullite, plagioclase, K-feldspar, hematite and calcite. As indicated by laser granulometry, the fraction D50 of investigated samples are about 80μm, so based on the above, they belong to coarse ashes.Very important parameter which defines chemical composition of the fly ash as precursor material of clinker or alkali activated materialsis presence of organic matter which is expressed by total organic content (TOC).Assessment of radiation exposure during coal combustion depends on the concentration of radioactive elements in the coal and in the resulting fly ash. Fly ash as industrial waste contains certain concentrations of natural radionuclides that are considered naturally occurring radioactive materials (NORM). The results showed that fly ash has satisfactory radiological properties and can be used as an addition to clinkers, but also as a potential precursor of a new class of alkaline activated materials that can be used in the construction sector., Procena izloženosti zračenju pri sagorevanju uglja zavisi od koncentracije radioaktivnih elemenata u uglju i u letećem pepelu koji nastaje. Uzorci letećeg pepela se sastoje od amorfne faze praćene kvarcom, mulitom, plagioklasom, K-feldspatom, hematinom, kalcitom. Kao rezultat laserske granulometrije, frakcija D50 za ispitivane uzorke je približno 80 μm, tako da na osnovu navedenog, leteći pepeli predstavljaju pepele krupnih čestica. Veoma važan parametar je prisustvo organske materije koje se izražava ukupnim organskim sadržajem. Leteći pepeli kao industrijski ostaci sadrže određene koncentracije prirodnih radionuklida koji se smatraju prirodnim radioaktivnim materijalima (NORM). U ovojm istraživanju, leteći pepeo iz aktivne i pasivne kasete TENT A (termoelektrana Nikola Tesla, Obrenovac) karakteriše se sa radiološkog i fizičko-hemijskog aspekta. Rezultati su pokazali da leteći pepeo ima zadovoljavajuća radiološka svojstva i da se može koristiti kao dodatak klinkerima, ali i kao potencijalni precursor nove klase alkalno aktiviranih materijala koji se mogu primeniti u građevinskom sektoru.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Fly-Ash for Usage in the Building Material Industry, Upotreba letećeg pepela u industriji građevinskog materijala",
pages = "128-136",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12174"
}

Mladenović Nikolić, N., Trivunac, K., Nenadović, M., Dolenec, S., Mrak, M., Vukanac, I., Nenadović, S.,& Kljajević, L. M.. (2023). Fly-Ash for Usage in the Building Material Industry. in 32. simpozijum DZZSCG : zbornik radova
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 128-136.
https://hdl.handle.net/21.15107/rcub_vinar_12174

Mladenović Nikolić N, Trivunac K, Nenadović M, Dolenec S, Mrak M, Vukanac I, Nenadović S, Kljajević LM. Fly-Ash for Usage in the Building Material Industry. in 32. simpozijum DZZSCG : zbornik radova. 2023;:128-136.
https://hdl.handle.net/21.15107/rcub_vinar_12174 .

Mladenović Nikolić, Nataša, Trivunac, Katarina, Nenadović, Miloš, Dolenec, Sabina, Mrak, Maruša, Vukanac, Ivana, Nenadović, Snežana, Kljajević, Ljiljana M., "Fly-Ash for Usage in the Building Material Industry" in 32. simpozijum DZZSCG : zbornik radova (2023):128-136,
https://hdl.handle.net/21.15107/rcub_vinar_12174 .

TY  - JOUR
AU  - Fidanchevska, Emilija
AU  - Angjusheva, Biljana
AU  - Jovanov, Vojo
AU  - Murtanovski, Pece
AU  - Vladiceska, Ljubica
AU  - Stamatovska Aluloska, Nikolina
AU  - Krneta-Nikolić, Jelena D.
AU  - Ipavec, Andrej
AU  - Šter, Katarina
AU  - Mrak, Maruša
AU  - Dolenec, Sabina
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9953
AB  - Huge quantities of fly ash and bottom ash are generated from thermal power plants and it presents great concern for country, mainly due to the environmental effects. In this study, fly ashes and bottom ash were characterized from technical and radiological aspects. Health effect due to the activity of radionuclides 226Ra, 232Th and 40K was estimated via radium equivalent activity (Raeq), external hazards index (Hex), the external absorbed dose rate (D) and annual effective dose rate (EDR). The specific surface area (40.25 m2 g−1), particle density (1.88 g cm−3) and LOI (23.49%) were typical for bottom ash. Siliceous fly ash contained 32% reactive silica. The annual effective dose rate for all ashes is ≤ 0.2 mSv y−1. Both, fly ash and bottom ash present potential secondary raw materials to be used for building purposes as result of their technological and radiological assessment.
T2  - Journal of Radioanalytical and Nuclear Chemistry
T1  - Technical and radiological characterisation of fly ash and bottom ash from thermal power plant
VL  - 330
IS  - 3
SP  - 685
EP  - 694
DO  - 10.1007/s10967-021-07980-w
ER  - 

@article{
author = "Fidanchevska, Emilija and Angjusheva, Biljana and Jovanov, Vojo and Murtanovski, Pece and Vladiceska, Ljubica and Stamatovska Aluloska, Nikolina and Krneta-Nikolić, Jelena D. and Ipavec, Andrej and Šter, Katarina and Mrak, Maruša and Dolenec, Sabina",
year = "2021",
abstract = "Huge quantities of fly ash and bottom ash are generated from thermal power plants and it presents great concern for country, mainly due to the environmental effects. In this study, fly ashes and bottom ash were characterized from technical and radiological aspects. Health effect due to the activity of radionuclides 226Ra, 232Th and 40K was estimated via radium equivalent activity (Raeq), external hazards index (Hex), the external absorbed dose rate (D) and annual effective dose rate (EDR). The specific surface area (40.25 m2 g−1), particle density (1.88 g cm−3) and LOI (23.49%) were typical for bottom ash. Siliceous fly ash contained 32% reactive silica. The annual effective dose rate for all ashes is ≤ 0.2 mSv y−1. Both, fly ash and bottom ash present potential secondary raw materials to be used for building purposes as result of their technological and radiological assessment.",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
title = "Technical and radiological characterisation of fly ash and bottom ash from thermal power plant",
volume = "330",
number = "3",
pages = "685-694",
doi = "10.1007/s10967-021-07980-w"
}

Fidanchevska, E., Angjusheva, B., Jovanov, V., Murtanovski, P., Vladiceska, L., Stamatovska Aluloska, N., Krneta-Nikolić, J. D., Ipavec, A., Šter, K., Mrak, M.,& Dolenec, S.. (2021). Technical and radiological characterisation of fly ash and bottom ash from thermal power plant. in Journal of Radioanalytical and Nuclear Chemistry, 330(3), 685-694.
https://doi.org/10.1007/s10967-021-07980-w

Fidanchevska E, Angjusheva B, Jovanov V, Murtanovski P, Vladiceska L, Stamatovska Aluloska N, Krneta-Nikolić JD, Ipavec A, Šter K, Mrak M, Dolenec S. Technical and radiological characterisation of fly ash and bottom ash from thermal power plant. in Journal of Radioanalytical and Nuclear Chemistry. 2021;330(3):685-694.
doi:10.1007/s10967-021-07980-w .

Fidanchevska, Emilija, Angjusheva, Biljana, Jovanov, Vojo, Murtanovski, Pece, Vladiceska, Ljubica, Stamatovska Aluloska, Nikolina, Krneta-Nikolić, Jelena D., Ipavec, Andrej, Šter, Katarina, Mrak, Maruša, Dolenec, Sabina, "Technical and radiological characterisation of fly ash and bottom ash from thermal power plant" in Journal of Radioanalytical and Nuclear Chemistry, 330, no. 3 (2021):685-694,
https://doi.org/10.1007/s10967-021-07980-w . .