Effect of selective sorptive agents on leachability of {sup 137}Cs and {sup 90}Sr

Conference · Mon Jun 01 00:00:00 EDT 1998

OSTI ID:663350

Spence, R D

Decades ago it was established that illite effectively improves {sup 137}Cs leach resistance. Subsequently, illite has become a standard ingredient used at Oak Ridge National Laboratory in grouts developed to stabilize {sup 137}Cs. Adding illite improves {sup 137}Cs leach resistance by three orders of magnitude, and increasing the illite concentration can add another order of magnitude improvement. Adding crystalline silicotitanate, a selective sorptive agent developed more recently for {sup 137}Cs, not only improves {sup 137}Cs leach resistance by an order-of-magnitude over that obtained using illite but also improves {sup 85}Sr leach resistance by two orders of magnitude.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 663350
• Report Number(s): ORNL/CP-98158; CONF-980905-; ON: DE98005736; BR: EW4010000; TRN: 99:000062
• Resource Relation: Conference: SPECTRUM `98: nuclear and hazardous waste management international topical meeting, Denver, CO (United States), 13-18 Sep 1998; Other Information: PBD: [1998]
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
CESIUM 137
STRONTIUM 90
LEACHING
WASTE FORMS
ILLITE
SORPTIVE PROPERTIES
CORROSION RESISTANCE
SILICON COMPOUNDS
TITANATES
RADIOACTIVE WASTE DISPOSAL