Composition and process for the encapsulation and stabilization of radioactive, hazardous and mixed wastes
Patent
·
OSTI ID:597075
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:
- Associated Universities, Inc., Washington, DC (United States)
- Patent Number(s):
- US 5,732,364/A/
- Application Number:
- PAN: 8-781,003; TRN: 98:004640
- OSTI ID:
- 597075
- Resource Relation:
- Other Information: PBD: 24 Mar 1998
- Country of Publication:
- United States
- Language:
- English
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