Adsorption/desorption of uranium on iron-bearing soil mineral surface

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 68
  • Download : 0
In this study, we evaluated the adsorption/desorption of uranium (U) in pure soil environment using continuous column reactor. We additionally investigated the adsorption/desorption mechanism of U on vivianite surface in molecular scale using quantum calculation. We observed that below 0.1 mu M of U was detected after 20 d from U injection (1 mu M) in adsorption test. However, all of absorbed U was detached from vivianite surface in 24 h by injection of CARB solution (1.44 x 10(-2) M NaHCO3 and 2.8 x 10(-3) M Na2CO3). Based on exchange energy calculation, we found that UO2 (CO3)(2)(2-) and UO2 (CO3)(3)(4-) species have higher repulsive energy than UO2 (OH)(2) species. The results obtained from this study could be applied to predict the behavior of uranium in contaminated and remediation sites.
Publisher
TECHNO-PRESS
Issue Date
2015-06
Language
English
Article Type
Article
Citation

ADVANCES IN ENVIRONMENTAL RESEARCH-AN INTERNATIONAL JOURNAL, v.4, no.2, pp.135 - 142

ISSN
1093-0191
DOI
10.12989/aer.2015.4.2.135
URI
http://hdl.handle.net/10203/205650
Appears in Collection
CE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0