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Journal of Radioanalytical and Nuclear Chemistry

, Volume 309, Issue 2, pp 647–657 | Cite as

Sorption of cesium on boreal forest soil II. The effect of time, incubation conditions, pH and competing cations

  • Mervi Söderlund
  • Sinikka Virtanen
  • Ilkka Välimaa
  • Janne Lempinen
  • Martti Hakanen
  • Jukka Lehto
Article

Abstract

Cesium sorption on Olkiluoto mineral soil samples was studied in batch experiments. The effect of incubation time, incubation conditions, pH and competing cations were investigated. The retention of cesium increased with increasing time. In anaerobic conditions the sorption of cesium was lower than in aerobic ones, possibly caused by the formation of NH4 +. Increase in pH promoted the sorption of cesium. Stable cesium reduced the sorption of 134Cs+ the most, and the overall sorption hindering effectivity of cations decreased in the order of stable Cs+ > NH4 + > K+ » Ca2+ > Na+.

Keywords

Radiocesium Olkiluoto soil Aerobic and anaerobic pH Competing cations Distribution coefficient 

Notes

Acknowledgments

The authors wish to thank Posiva Oy for funding this study as a part of the research programme for a spent nuclear fuel repository. The Finnish Doctoral Programme for Nuclear Engineering and Radiochemistry (YTERA) is thanked for financial support for this manuscript.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2015

Authors and Affiliations

  • Mervi Söderlund
    • 1
  • Sinikka Virtanen
    • 1
  • Ilkka Välimaa
    • 1
  • Janne Lempinen
    • 1
  • Martti Hakanen
    • 1
  • Jukka Lehto
    • 1
  1. 1.Laboratory of Radiochemistry, Department of ChemistryUniversity of HelsinkiHelsinkiFinland

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