Leaching behavior of Co-60 and (CS)-C-137 from spent ion exchange resins in cement-bentonite clay matrix
Апстракт
The leach rate of Co-60 and Cs-137 from two different ion exchange resins: (a) spent cation exchange resins and (b) spent mix bead ion exchange resins in cement-bentonite matrix has been studied. The solidification matrix was a standard Portland cement mixed with 290-350 kg/m(3) spent cation exchange resins, with or without 2-5% of bentonite clay. The leach rates from the cement-bentonite matrix as Co-60: (4.2-7.3) x 10(-5) cm/d, and for Cs-137: (3.2-6.6) x 10-5 cm/d, after 245 days were measured. From the leaching data the apparent diffusivity of cobalt and cesium in cement-bentonite clay matrix with a waste load of 290-350 kg/m(3) spent cation exchange resins was measured as Co-60: (1.0-4.0) x 10(-6) cm(2)/d and for Cs-137: (0.5-2.6) x 10(-4) cm(2)/d after 245 days. These results are part of a 20-year mortar and concrete testing project which will influence the design of radioactive waste management for a future Serbian radioactive waste disposal center. (C) 2004 Elsevier B.V. All ri...ghts reserved.
Извор:
Journal of Nuclear Materials, 2004, 327, 2-3, 171-174
DOI: 10.1016/j.jnucmat.2004.02.001
ISSN: 0022-3115
WoS: 000220936900011
Scopus: 2-s2.0-1842484257
Колекције
Институција/група
VinčaTY - JOUR AU - Plećaš, Ilija B. AU - Pavlović, R AU - Pavlović, S PY - 2004 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2763 AB - The leach rate of Co-60 and Cs-137 from two different ion exchange resins: (a) spent cation exchange resins and (b) spent mix bead ion exchange resins in cement-bentonite matrix has been studied. The solidification matrix was a standard Portland cement mixed with 290-350 kg/m(3) spent cation exchange resins, with or without 2-5% of bentonite clay. The leach rates from the cement-bentonite matrix as Co-60: (4.2-7.3) x 10(-5) cm/d, and for Cs-137: (3.2-6.6) x 10-5 cm/d, after 245 days were measured. From the leaching data the apparent diffusivity of cobalt and cesium in cement-bentonite clay matrix with a waste load of 290-350 kg/m(3) spent cation exchange resins was measured as Co-60: (1.0-4.0) x 10(-6) cm(2)/d and for Cs-137: (0.5-2.6) x 10(-4) cm(2)/d after 245 days. These results are part of a 20-year mortar and concrete testing project which will influence the design of radioactive waste management for a future Serbian radioactive waste disposal center. (C) 2004 Elsevier B.V. All rights reserved. T2 - Journal of Nuclear Materials T1 - Leaching behavior of Co-60 and (CS)-C-137 from spent ion exchange resins in cement-bentonite clay matrix VL - 327 IS - 2-3 SP - 171 EP - 174 DO - 10.1016/j.jnucmat.2004.02.001 ER -
@article{ author = "Plećaš, Ilija B. and Pavlović, R and Pavlović, S", year = "2004", abstract = "The leach rate of Co-60 and Cs-137 from two different ion exchange resins: (a) spent cation exchange resins and (b) spent mix bead ion exchange resins in cement-bentonite matrix has been studied. The solidification matrix was a standard Portland cement mixed with 290-350 kg/m(3) spent cation exchange resins, with or without 2-5% of bentonite clay. The leach rates from the cement-bentonite matrix as Co-60: (4.2-7.3) x 10(-5) cm/d, and for Cs-137: (3.2-6.6) x 10-5 cm/d, after 245 days were measured. From the leaching data the apparent diffusivity of cobalt and cesium in cement-bentonite clay matrix with a waste load of 290-350 kg/m(3) spent cation exchange resins was measured as Co-60: (1.0-4.0) x 10(-6) cm(2)/d and for Cs-137: (0.5-2.6) x 10(-4) cm(2)/d after 245 days. These results are part of a 20-year mortar and concrete testing project which will influence the design of radioactive waste management for a future Serbian radioactive waste disposal center. (C) 2004 Elsevier B.V. All rights reserved.", journal = "Journal of Nuclear Materials", title = "Leaching behavior of Co-60 and (CS)-C-137 from spent ion exchange resins in cement-bentonite clay matrix", volume = "327", number = "2-3", pages = "171-174", doi = "10.1016/j.jnucmat.2004.02.001" }
Plećaš, I. B., Pavlović, R.,& Pavlović, S.. (2004). Leaching behavior of Co-60 and (CS)-C-137 from spent ion exchange resins in cement-bentonite clay matrix. in Journal of Nuclear Materials, 327(2-3), 171-174. https://doi.org/10.1016/j.jnucmat.2004.02.001
Plećaš IB, Pavlović R, Pavlović S. Leaching behavior of Co-60 and (CS)-C-137 from spent ion exchange resins in cement-bentonite clay matrix. in Journal of Nuclear Materials. 2004;327(2-3):171-174. doi:10.1016/j.jnucmat.2004.02.001 .
Plećaš, Ilija B., Pavlović, R, Pavlović, S, "Leaching behavior of Co-60 and (CS)-C-137 from spent ion exchange resins in cement-bentonite clay matrix" in Journal of Nuclear Materials, 327, no. 2-3 (2004):171-174, https://doi.org/10.1016/j.jnucmat.2004.02.001 . .