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Title: Composition and process for the encapsulation and stabilization of radioactive hazardous and mixed wastes

Abstract

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.

Inventors:
;
Issue Date:
Research Org.:
Associated Universities Inc
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
516927
Patent Number(s):
5,649,323
Application Number:
PAN: 8-375,387; TRN: 97:014591
Assignee:
PTO; SCA: 052002; PA: EDB-97:115689; SN: 97001831612
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 15 Jul 1997
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; RADIOACTIVE WASTE DISPOSAL; WASTE FORMS; HAZARDOUS MATERIALS; MIXTURES; ENCAPSULATION; THERMOPLASTICS; SYNTHESIS

Citation Formats

Kalb, P.D., and Colombo, P. Composition and process for the encapsulation and stabilization of radioactive hazardous and mixed wastes. United States: N. p., 1997. Web.
Kalb, P.D., & Colombo, P. Composition and process for the encapsulation and stabilization of radioactive hazardous and mixed wastes. United States.
Kalb, P.D., and Colombo, P. Tue . "Composition and process for the encapsulation and stabilization of radioactive hazardous and mixed wastes". United States.
@article{osti_516927,
title = {Composition and process for the encapsulation and stabilization of radioactive hazardous and mixed wastes},
author = {Kalb, P.D. and Colombo, P.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {7}
}