SharePoint
Aide
IRSN, Institut de radioprotection et de sûreté nucléaire

Search our site :

ok

Contact us :

ok
En Fr

Enhancing Nuclear Safety


Research

Publications

Am-241 Remobilization in a calcareous soil under simplified rhizospheric conditions studies by column experiments.

T. Perrier, A. Martin-Garin, M. Morello
J Environ Radioact. 2005;79(2):205-21

Document type > *Article de revue

Keywords > radiological protection, americium, ENVIRHOM (programme), Kd, rhizosphere, soil

Research Unit > IRSN/DEI/SECRE/LRE

Authors > MARTIN-GARIN Arnaud, MORELLO Marcel

Publication Date > 06/01/2005

Summary

The effects of simplified rhizospheric conditions on the leaching of 241 Am from a calcareous soil, freshly contaminated,were investigated in batch and column experiments.Glucose and/ or citrate were used as arti .cial exudate solutions at concentrations ranging from 10-4 to 10-2 mol dm-3 .Am desorption,expressed in terms of distribution coefficients,varied from Kd > 10 + 4 dm+3 kg-1 corresponding to a majority of experimental conditions,to Kd < 10 2 dm 3 kg 1 when citrate combined or not with glucose was used at R > 10-2 mol dm-3 Soil columns revealed successive steady states coupled with transitory episodes,the latter represented up to 90%of the total Am release. 241Am fractions with di .erent behaviours were thus highlighted in columns whereas batch only accounted for highest Am mobile fractions.The implications of the di .erent processes are discussed in terms of modelling approach and risk assessment.

Close

Send to a friend

The information you provide in this page are single use only and will not be saved.
* Required fields

Recipient's email:*  

Sign with your name:* 

Type your email address:*   

Add a message :

Do you want to receive a copy of this email?

Send

Cancel

Close

WP_IMPRIMER_TITLE

WP_IMPRIMER_MESSAGE

Back

Ok