Composition and process for the encapsulation and stabilization of radioactive hazardous and mixed wastes
Patent
·
OSTI ID:516927
The present invention provides a composition and process for disposal of radioactive, hazardous and mixed wastes. The present invention preferably includes a process for multibarrier encapsulation of radioactive, hazardous and mixed wastes by combining substantially simultaneously dry waste powder, a non-biodegradable thermoplastic polymer and an anhydrous additive in an extruder to form a homogeneous molten matrix. The molten matrix may be directed in a ``clean`` polyethylene liner, allowed to cool, thus forming a monolithic waste form which provides a multibarrier to the dispersion of wastes into the environment. 2 figs.
- Research Organization:
- Associated Universities Inc
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016
- Assignee:
- PTO; SCA: 052002; PA: EDB-97:115689; SN: 97001831612
- Patent Number(s):
- US 5,649,323/A/
- Application Number:
- PAN: 8-375,387; TRN: 97:014591
- OSTI ID:
- 516927
- Resource Relation:
- Other Information: PBD: 15 Jul 1997
- Country of Publication:
- United States
- Language:
- English
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