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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:
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6316117
Patent Number(s):
5926772 A
Application Number:
PPN: US 8-950023
Assignee:
Brookhaven Science Associates LLC, Upton, NY (United States) PTO; EDB-99-083844
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Resource Relation:
Patent File Date: 14 Oct 1997
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; ENCAPSULATION; FABRICATION; HAZARDOUS MATERIALS; RADIOACTIVE WASTE DISPOSAL; WASTE DISPOSAL; WASTE FORMS; MANAGEMENT; MATERIALS; RADIOACTIVE WASTE MANAGEMENT; WASTE MANAGEMENT; 052002* - Nuclear Fuels- Waste Disposal & Storage

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., 1999. 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_6316117,
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 = {1999},
month = {7}
}