Influence of microorganisms on uranium release from mining-impacted lake sediments under various oxygenation conditions.
Environ Sci Process Impacts
; 24(10): 1830-1843, 2022 Oct 19.
Article
in En
| MEDLINE
| ID: mdl-36082760
ABSTRACT
Microbial processes can be involved in the remobilization of uranium (U) from reduced sediments under O2 reoxidation events such as water table fluctuations. Such reactions could be typically encountered after U-bearing sediment dredging operations. Solid U(IV) species may thus reoxidize into U(VI) that can be released in pore waters in the form of aqueous complexes with organic and inorganic ligands. Non-uraninite U(IV) species may be especially sensitive to reoxidation and remobilization processes. Nevertheless, little is known regarding the effect of microbially mediated processes on the behaviour of U under these conditions.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Water Pollutants, Radioactive
/
Uranium
Language:
En
Journal:
Environ Sci Process Impacts
Year:
2022
Document type:
Article
Affiliation country:
France