skip to main content
OSTI.GOV 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. 21 Barnes Road, Wading River, NY 11792
  2. 44 N. Pinelake Dr., Patchogue, NY 11772
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
871053
Patent Number(s):
US 5649323
Assignee:
Kalb, Paul D. (21 Barnes Road, Wading River, NY 11792);Colombo, Peter (44 N. Pinelake Dr., Patchogue, NY 11772)
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; /588/252/976/

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., 1997. 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. 1997. "Composition and process for the encapsulation and stabilization of radioactive hazardous and mixed wastes". United States. https://www.osti.gov/servlets/purl/871053.
@article{osti_871053,
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 = {},
url = {https://www.osti.gov/biblio/871053}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}