Influence of bentonite and zeolite in cementation of dry radioactive evaporator concentrates
Апстракт
To assess the safety for disposal of radioactive mortar-waste composition, the leaching Of (137)Cs, (60)Co, and (85)Sr from immobilized radioactive evaporator concentrate, into a surrounding fluid has been studied. This paper also presents results from studies made to determine the influence of natural adsorbents (bentonite and zeolite) in immobilization of evaporator concentrate in cement matrix, by measuring leachability of (137)Cs, (60)Co, and (85)Sr. Leaching tests were carried out in accordance with a method recommended by IAFA during 300 days. From the leaching data the apparent diffusivity of cobalt, cesium, and strontium in the cement-bentonite matrix was measured. The uniaxial compressive strength of eleven mortar samples was determined following the ASTM standards. These results are part of a 30-year mortar and concrete testing project which will contribute to the design of radioactive waste management for a future Serbian radioactive waste disposal center. (C) 2008 Published... by Elsevier B.V.
Кључне речи:
Immobilization / Diffusion / Leaching / Cement / Bentonite / Clinoptilolite / Evaporator concentrateИзвор:
Applied Clay Science, 2009, 43, 1, 9-12Финансирање / пројекти:
- Ministry of Science of the Republic of Serbia [142050Gamma]
DOI: 10.1016/j.clay.2008.07.003
ISSN: 0169-1317
WoS: 000262658000002
Scopus: 2-s2.0-57649135360
Колекције
Институција/група
VinčaTY - JOUR AU - Plećaš, Ilija B. AU - Dimović, Slavko AU - Smičiklas, Ivana D. PY - 2009 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3617 AB - To assess the safety for disposal of radioactive mortar-waste composition, the leaching Of (137)Cs, (60)Co, and (85)Sr from immobilized radioactive evaporator concentrate, into a surrounding fluid has been studied. This paper also presents results from studies made to determine the influence of natural adsorbents (bentonite and zeolite) in immobilization of evaporator concentrate in cement matrix, by measuring leachability of (137)Cs, (60)Co, and (85)Sr. Leaching tests were carried out in accordance with a method recommended by IAFA during 300 days. From the leaching data the apparent diffusivity of cobalt, cesium, and strontium in the cement-bentonite matrix was measured. The uniaxial compressive strength of eleven mortar samples was determined following the ASTM standards. These results are part of a 30-year mortar and concrete testing project which will contribute to the design of radioactive waste management for a future Serbian radioactive waste disposal center. (C) 2008 Published by Elsevier B.V. T2 - Applied Clay Science T1 - Influence of bentonite and zeolite in cementation of dry radioactive evaporator concentrates VL - 43 IS - 1 SP - 9 EP - 12 DO - 10.1016/j.clay.2008.07.003 ER -
@article{ author = "Plećaš, Ilija B. and Dimović, Slavko and Smičiklas, Ivana D.", year = "2009", abstract = "To assess the safety for disposal of radioactive mortar-waste composition, the leaching Of (137)Cs, (60)Co, and (85)Sr from immobilized radioactive evaporator concentrate, into a surrounding fluid has been studied. This paper also presents results from studies made to determine the influence of natural adsorbents (bentonite and zeolite) in immobilization of evaporator concentrate in cement matrix, by measuring leachability of (137)Cs, (60)Co, and (85)Sr. Leaching tests were carried out in accordance with a method recommended by IAFA during 300 days. From the leaching data the apparent diffusivity of cobalt, cesium, and strontium in the cement-bentonite matrix was measured. The uniaxial compressive strength of eleven mortar samples was determined following the ASTM standards. These results are part of a 30-year mortar and concrete testing project which will contribute to the design of radioactive waste management for a future Serbian radioactive waste disposal center. (C) 2008 Published by Elsevier B.V.", journal = "Applied Clay Science", title = "Influence of bentonite and zeolite in cementation of dry radioactive evaporator concentrates", volume = "43", number = "1", pages = "9-12", doi = "10.1016/j.clay.2008.07.003" }
Plećaš, I. B., Dimović, S.,& Smičiklas, I. D.. (2009). Influence of bentonite and zeolite in cementation of dry radioactive evaporator concentrates. in Applied Clay Science, 43(1), 9-12. https://doi.org/10.1016/j.clay.2008.07.003
Plećaš IB, Dimović S, Smičiklas ID. Influence of bentonite and zeolite in cementation of dry radioactive evaporator concentrates. in Applied Clay Science. 2009;43(1):9-12. doi:10.1016/j.clay.2008.07.003 .
Plećaš, Ilija B., Dimović, Slavko, Smičiklas, Ivana D., "Influence of bentonite and zeolite in cementation of dry radioactive evaporator concentrates" in Applied Clay Science, 43, no. 1 (2009):9-12, https://doi.org/10.1016/j.clay.2008.07.003 . .