Enhancement of the heterogeneous adsorption and incorporation of uraniumVI caused by the intercalation of β-cyclodextrin into the green rust

Disposal Strategy of Ion-Adsorption Rare Earth Elements Low-Level Radioactive Residues: Reduction Emission and Recovery for Aluminum and Uranium by Alkaline and Alkalescent Media

“…The leaching U with average concentrations of 31 mg/L in the alkalescent medium (Figure D) was primarily attributed to the dissolution of adsorbed U(VI) species and Na 2 U 2 O 7(s) into soluble U(VI) complexes, and the main chemical transformations of U are listed in eqs and ). To mitigate the radiological hazards posed by U(VI), , U(VI) in alkalescent solution with an average concentration of 6.6 g/L Al (Figure D) could be enriched with adsorption − or precipitation , methods for the nuclear fuel materials, and the purified NaAl(OH) 4 solution could be utilized for high-value products such as γ-AlOOH. , UO 2 2 + + 3 CO 3 2 − = UO 2 false( CO 3 false) 3 4 − goodbreak0em1em⁣ K = 10 21.74 Na 2 normalU 2 normalO 7 ( s ) + 6 Na 2 CO 3 ( a ) + 3 normalH 2 normalO false( normala false) = 2 Na 4 U...…”

Enhancement of Uranium Recycling from Tailings Caused by the Microwave Irradiation-Induced Composite Oxidation of the Fe–Mn Binary System

“…Until now, the treatment technologies mentioned for the U tailings include physical segregation (e.g., backfilling and soil covering), biohydrometallurgy, phytoremediation, solidification/stabilization (S/S), chemical leaching, etc. − Specifically, the physical segregation method can effectively reduce the land area occupied by U tailings and obstruct the radiative emittance into the air within a short period. However, the segregation technique makes the accumulation and further infiltration of radionuclides easier during long-term weathering processes. , The recent progress in biohydrometallurgy for mining has been reported in several reviews .…”