Skip to main content Accessibility help
×
Home

Experimental adsorption studies on different materials selected for developing a permeable reactive barrier for radiocesium retention

  • Miguel García-Gutiérrez (a1), Tiziana Missana (a1), Ana Benedicto (a1), Carlos Ayora (a2) and Katrien DePourcq (a2)...

Abstract

Cs-137 was accidentally spilled in an industrial waste repository located in a salt marsh in southern Spain, and a permeable reactive barrier was proposed to retain it. Cs adsorption properties of different natural clayey materials were analyzed. The salt marsh waters show high salinity and high chemical variability, therefore Cs adsorption was also analyzed in the presence of competitive ions, especially K+ and NH4 +.

Cs adsorption was non-linear in all the analyzed materials, indicating more than one adsorption sites with different selectivity. It was shown that in mixed clay systems with illite, montmorillonite and kaolinite, the presence of illite favors Cs retention at low and medium Cs loadings and montmorillonite at high Cs loadings. In the presence of illite and montmorillonite, kaolinite plays almost no role in Cs retention. The presence of K+ and NH4 + significantly hinders cesium adsorption.

Copyright

References

Hide All
1. Borai, E.H, Hariula, R., Malinen, L., Paajanen, A. (2009), Journal of Hazardous Materials, 172(1), 416422
2. Park, Y., Shin, W.S., Choi, S. (2012), Journal of Radioanal. Nucl. Chem, 292, 837852.
3. Krumhans, J.L, Brady, P.V., Anderson, H.L. (2001). J. Contaminant Hydrology, 233240.
4. Eberl, D.D. (1980), Clay and Clay Minerals, 28(3), 161172.
5. Sawhney, B.L. (1972), Clays and Clay Minerals, 20, 93100.
6. Missana, T., García-Gutiérrez, M., Benedicto, A., Ayora, C., De-Pourcq, K. (2013), Applied Geochemistry, to be submitted.

Keywords

Related content

Powered by UNSILO

Experimental adsorption studies on different materials selected for developing a permeable reactive barrier for radiocesium retention

  • Miguel García-Gutiérrez (a1), Tiziana Missana (a1), Ana Benedicto (a1), Carlos Ayora (a2) and Katrien DePourcq (a2)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.