Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Incorporation of strontium and europium in crystals of α-calcium isosaccharinate
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering.ORCID iD: 0000-0002-2819-2062
Uppsala Universitet, Department of Engineering Sciences.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry.ORCID iD: 0000-0003-0663-0751
Show others and affiliations
2019 (English)In: Journal of Hazardous Materials, ISSN 0304-3894, E-ISSN 1873-3336, Vol. 364, p. 309-316Article in journal (Refereed) Published
Abstract [en]

The final repository for short-lived, low and intermediate level radioactive waste in Sweden is built to act as a passive repository. Already within a few years after closure water will penetrate the repository and conditions of high alkalinity (pH 10.5―13.5) and low temperature (< 7 °C) will prevail. The mobility of radionuclides in the repository is dependent on the radionuclides distribution between solid and liquid phases. In the present work the incorporation of strontium (II) and europium (III) in α-calcium isosaccharinate (ISA) under alkaline conditions (pH ~10) at 5 °C and 50 °C have been studied. The results show that strontium and europium are incorporated into α-Ca(ISA)2 when crystallized both at 5 °C and 50 °C. Europium is incorporated to a greater extent than strontium. The highest incorporation of europium and strontium at 5 °C rendered the phase compositions Ca0.986Eu0.014(ISA)2 (2.4% of Eu(ISA)3 by mass) and Ca0.98Sr0.02(ISA)2 (2.2% of Sr(ISA)2 by mass). XPS spectra show that both trivalent and divalent Eu coexist in the Eu incorporated samples. Strontium ions were found to retard the elongated growth of the Ca(ISA)2crystals. The incorporation of Sr2+ and Eu3+ into the solid phase of Ca(ISA)2 is expected to contribute to a decreased mobility of these ions in the repository.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 364, p. 309-316
Keywords [en]
Mobility, radionuclides, isosaccharinate, precipitation
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-235920DOI: 10.1016/j.jhazmat.2018.10.001ISI: 000452926500034PubMedID: 30384240Scopus ID: 2-s2.0-85055549831OAI: oai:DiVA.org:kth-235920DiVA, id: diva2:1254288
Funder
Swedish Radiation Safety Authority, SSM2016-2126
Note

QC 20181010

Available from: 2018-10-08 Created: 2018-10-08 Last updated: 2019-05-20Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopus

Authority records BETA

Chen, SongJonsson, MatsForsberg, Kerstin

Search in DiVA

By author/editor
Chen, SongAbdel-Magied, Ahmed F.Jonsson, MatsForsberg, Kerstin
By organisation
Chemical EngineeringChemistry
In the same journal
Journal of Hazardous Materials
Chemical Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 1368 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf