Colloidal products and actinide species in leachate from spent nuclear fuel

Conference · Fri Dec 31 04:00:00 EST 1993

OSTI ID:10110452

Finn, P A; Buck, E C; Gong, M; Hoh, J C; Emery, J W; Hafenrichter, L D; Bates, J K

Two well-characterized types of spent nuclear fuel (ATM-103 and ATM-106) were subjected to unsaturated leach tests with simulated groundwater at 90{degrees}C. The actinides present in the leachate were determined at the end of two successive periods of {approximately}60 days and after an acid strip done at the end of the second period. Both colloidal and soluble actinide species were detected in the leachates which had pHs ranging from 4 to 7. The uranium phases identified in the colloids were schoepite and soddyite. In addition, the actinide release behavior of the two fuels appeared to be different for both the total amount of material released and the relative amount of each isotope released. This paper will focus on the detection and identification of the colloidal species observed in the leachate that was collected after each of the first two successive testing periods of approximately 60 days each. In addition, preliminary values for the total actinide release for these two periods are reported.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10110452
• Report Number(s): ANL/CMT/CP--78877; CONF-931201--5; ON: DE94004630
• Country of Publication: United States
• Language: English

Related Subjects

052002
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
54 ENVIRONMENTAL SCIENCES
540230
ACTINIDES
COLLOIDS
CONTAMINATION
GROUND WATER
LEACHING
PWR TYPE REACTORS
RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
RADIOACTIVE WASTE DISPOSAL
RADIONUCLIDE MIGRATION
SIMULATION
SPENT FUELS
WASTE DISPOSAL AND STORAGE