Fundamental Aspects of Zeolite Waste Form Production by Hot Isostatic Pressing
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
The direct conversion of iodine-bearing sorbents into a stable waste form is a research topic of interest to the US Department of Energy. The removal of volatile radioactive 129I from the off-gas of a nuclear fuel reprocessing facility will be necessary in order to comply with the regulatory requirements that apply to facilities sited within the United States (Jubin et al., 2012a), and any iodine-containing media or solid sorbents generated by this process would contain 129I and would be destined for eventual geological disposal. While recovery of iodine from some sorbents is possible, a method to directly convert iodineloaded sorbents to a durable waste form with little or no additional waste materials being formed and a potentially reduced volume would be beneficial. To this end, recent studies have investigated the conversion of iodine-loaded silver mordenite (I-AgZ) directly to a waste form by hot isostatic pressing (HIPing) (Bruffey and Jubin, 2015). Silver mordenite (AgZ), of the zeolite class of minerals, is under consideration for use in adsorbing iodine from nuclear reprocessing off-gas streams. Direct conversion of I-AgZ by HIPing may provide the following benefits: (1) a waste form of high density that is tolerant to high temperatures, (2) a waste form that is not significantly chemically hazardous, and (3) a robust conversion process that requires no pretreatment.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1414720
- Report Number(s):
- ORNL/TM-2016/759
- Country of Publication:
- United States
- Language:
- English
Similar Records
Hot Isostatic Pressing of Engineered Forms of I-AgZ
Product Consistency Testing of Hot Isostatically Pressed Iodine-containing Waste Forms
Preparation of Four Large-format Hot Isostatically Pressed I-AgZ Waste Form Samples for Performance Testing
Technical Report
·
Wed Nov 01 00:00:00 EDT 2017
·
OSTI ID:1415914
Product Consistency Testing of Hot Isostatically Pressed Iodine-containing Waste Forms
Journal Article
·
Fri Jul 01 00:00:00 EDT 2016
· Transactions of the American Nuclear Society
·
OSTI ID:23042577
Preparation of Four Large-format Hot Isostatically Pressed I-AgZ Waste Form Samples for Performance Testing
Technical Report
·
Fri Sep 28 00:00:00 EDT 2018
·
OSTI ID:1506807