SOLUBILITY OF URANIUM AND PLUTONIUM IN ALKALINE SAVANNAH RIVER SITE HIGH LEVEL WASTE SOLUTIONS

Journal Article · Wed Mar 10 00:00:00 EST 2010 · Separation Science and Technology

DOI:https://doi.org/10.1080/01496395.2010.493820· OSTI ID:1009389

King, W; Hobbs, D; Wilmarth, B; Edwards, T

Five actual Savannah River Site tank waste samples and three chemically-modified samples were tested to determine solubility limits for uranium and plutonium over a one year time period. Observed final uranium concentrations ranged from 7 mg U/L to 4.5 g U/L. Final plutonium concentrations ranged from 4 {micro}g Pu/L to 12 mg Pu/L. Actinide carbonate complexation is believed to result in the dramatic solubility increases observed for one sample over long time periods. Clarkeite, NaUO{sub 2}(O)OH {center_dot} H{sub 2}O, was found to be the dominant uranium solid phase in equilibrium with the waste supernate in most cases.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: DE-AC09-08SR22470
• OSTI ID: 1009389
• Report Number(s): SRNL-STI-2010-00140; TRN: US1101376
• Journal Information: Separation Science and Technology, Vol. 45, Issue 12; ISSN 0149--6395
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
SAVANNAH RIVER PLANT
STORAGE FACILITIES
HIGH-LEVEL RADIOACTIVE WASTES
SOLUBILITY
URANIUM
PLUTONIUM
CARBONATES
CLARKEITE
TESTING