skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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 homogenous 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.

Inventors:
 [1];  [2]
  1. (Wading River, NY)
  2. (Patchogue, NY)
Issue Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY
OSTI Identifier:
872400
Patent Number(s):
5926772
Application Number:
08/950023
Assignee:
Brookhaven Science Associates LLC (Upton, NY) BNL
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
composition; process; encapsulation; stabilization; radioactive; hazardous; mixed; wastes; provides; disposal; preferably; multibarrier; combining; substantially; simultaneously; dry; waste; powder; non-biodegradable; thermoplastic; polymer; anhydrous; additive; extruder; form; homogenous; molten; matrix; directed; clean; polyethylene; liner; allowed; cool; forming; monolithic; dispersion; environment; molten matrix; monolithic waste; waste form; mixed waste; mixed wastes; substantially simultaneously; thermoplastic polymer; multibarrier encapsulation; simultaneously dry; waste powder; anhydrous additive; polyethylene liner; non-biodegradable thermoplastic; combining substantially; dry waste; homogenous molten; substantially simultaneous; plastic polymer; /588/250/264/976/

Citation Formats

Kalb, Paul D., and Colombo, Peter. Composition and process for the encapsulation and stabilization of radioactive, hazardous and mixed wastes. United States: N. p., 1999. Web.
Kalb, Paul D., & Colombo, Peter. Composition and process for the encapsulation and stabilization of radioactive, hazardous and mixed wastes. United States.
Kalb, Paul D., and Colombo, Peter. Tue . "Composition and process for the encapsulation and stabilization of radioactive, hazardous and mixed wastes". United States. https://www.osti.gov/servlets/purl/872400.
@article{osti_872400,
title = {Composition and process for the encapsulation and stabilization of radioactive, hazardous and mixed wastes},
author = {Kalb, Paul D. and Colombo, Peter},
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 homogenous 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {7}
}

Patent:

Save / Share: