Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal

2016
Authors
Omerasević, Mia
Ruzić, Jovana

Vuković, Nikola

Jovanović, Uros

Mirković, Miljana
Maksimović, Vesna

Dondur, Vera

Article (Published version)
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The possibility to use natural zeolite - clinoptilolite as a host material for radioactive Cs immobilization has been investigated. Cs-exchanged form of clinoptilolite which was prepared by treatment of clinoptilolite powder with 0.25 M CsCl solution was compacted. Both, powder and powder compact of exchanged clinoptilolite were thermally treated at 1200 C-0. The XRPD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium dodecaoxo-alumopentasilicate in both, powder sample and compact. The newly formed compound showed satisfactory Cs ions retention during leaching test. The sintered compact showed somewhat better resistance to Cs leaching than the thermally treated powder. The compressive strength of sintered compact was close to 200 MPa which is more than enough for easy handling and safe storage.
Keywords:
Sintering / Leaching tests / Ion exchange / Cs disposal / ClinoptiloliteSource:
Science of Sintering, 2016, 48, 1, 101-107Publisher:
- Međunarodni Institut za nauku o sinterovanju, Beograd
Funding / projects:
DOI: 10.2298/SOS1601101O
ISSN: 0350-820X
WoS: 000378175000010
Scopus: 2-s2.0-84965028560
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Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Omerasević, Mia AU - Ruzić, Jovana AU - Vuković, Nikola AU - Jovanović, Uros AU - Mirković, Miljana AU - Maksimović, Vesna AU - Dondur, Vera PY - 2016 UR - https://ritnms.itnms.ac.rs/handle/123456789/392 AB - The possibility to use natural zeolite - clinoptilolite as a host material for radioactive Cs immobilization has been investigated. Cs-exchanged form of clinoptilolite which was prepared by treatment of clinoptilolite powder with 0.25 M CsCl solution was compacted. Both, powder and powder compact of exchanged clinoptilolite were thermally treated at 1200 C-0. The XRPD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium dodecaoxo-alumopentasilicate in both, powder sample and compact. The newly formed compound showed satisfactory Cs ions retention during leaching test. The sintered compact showed somewhat better resistance to Cs leaching than the thermally treated powder. The compressive strength of sintered compact was close to 200 MPa which is more than enough for easy handling and safe storage. PB - Međunarodni Institut za nauku o sinterovanju, Beograd T2 - Science of Sintering T1 - Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal EP - 107 IS - 1 SP - 101 VL - 48 DO - 10.2298/SOS1601101O UR - conv_761 ER -
@article{ author = "Omerasević, Mia and Ruzić, Jovana and Vuković, Nikola and Jovanović, Uros and Mirković, Miljana and Maksimović, Vesna and Dondur, Vera", year = "2016", abstract = "The possibility to use natural zeolite - clinoptilolite as a host material for radioactive Cs immobilization has been investigated. Cs-exchanged form of clinoptilolite which was prepared by treatment of clinoptilolite powder with 0.25 M CsCl solution was compacted. Both, powder and powder compact of exchanged clinoptilolite were thermally treated at 1200 C-0. The XRPD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium dodecaoxo-alumopentasilicate in both, powder sample and compact. The newly formed compound showed satisfactory Cs ions retention during leaching test. The sintered compact showed somewhat better resistance to Cs leaching than the thermally treated powder. The compressive strength of sintered compact was close to 200 MPa which is more than enough for easy handling and safe storage.", publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd", journal = "Science of Sintering", title = "Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal", pages = "107-101", number = "1", volume = "48", doi = "10.2298/SOS1601101O", url = "conv_761" }
Omerasević, M., Ruzić, J., Vuković, N., Jovanović, U., Mirković, M., Maksimović, V.,& Dondur, V.. (2016). Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal. in Science of Sintering Međunarodni Institut za nauku o sinterovanju, Beograd., 48(1), 101-107. https://doi.org/10.2298/SOS1601101O conv_761
Omerasević M, Ruzić J, Vuković N, Jovanović U, Mirković M, Maksimović V, Dondur V. Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal. in Science of Sintering. 2016;48(1):101-107. doi:10.2298/SOS1601101O conv_761 .
Omerasević, Mia, Ruzić, Jovana, Vuković, Nikola, Jovanović, Uros, Mirković, Miljana, Maksimović, Vesna, Dondur, Vera, "Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal" in Science of Sintering, 48, no. 1 (2016):101-107, https://doi.org/10.2298/SOS1601101O ., conv_761 .