Scientific article

Sorption behaviour of Am on marl groundwater colloids

Published inJournal of environmental radioactivity, vol. 55, p. 241-253
Publication date2001

The sorption of americium on marl colloids is studied in a comprehensive way. In Na-HCO3 groundwater conditions, americium in the concentration range 3xE-11 – 3xE-10 M sorbs onto groundwater colloids. In these tests, the colloid concentration is rather high, i.e. Ccoll 1.7+-1.3 mg/L for sizes 50–5000nm or Ncoll (1.7+-0.1)xE11 l-1 for sizes larger than 100 nm. These colloids are mainly chlorite and smectite/illite with an average size smaller than 500 nm. For the groundwater (pH 8.6, [Na+] [HCO3-] 2xE-2 M), Kd values in the range 1–3 E6 ml g-1 are measured. These values are compared with experimental and modelled values reported earlier in the literature.

  • Groundwater
  • Colloid analysis
  • Americium
  • Actinide sorption
Citation (ISO format)
DEGUELDRE, Claude et al. Sorption behaviour of Am on marl groundwater colloids. In: Journal of environmental radioactivity, 2001, vol. 55, p. 241–253. doi: 10.1016/S0265-931X(00)00210-1
Main files (1)
Article (Published version)
ISSN of the journal0265-931X

Technical informations

Creation04/16/2014 4:51:00 PM
First validation04/16/2014 4:51:00 PM
Update time03/14/2023 9:08:33 PM
Status update03/14/2023 9:08:33 PM
Last indexation01/16/2024 9:45:17 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack