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Title: Thermal denitration and mineralization of waste constituents

Abstract

In order to produce a quality grout from LLW using hydraulic cements, proper conditioning of the waste is essential for complete cement curing. Several technologies were investigated as options for conditions. Since the LLW is dilute, removal of all, or most, of the water will significantly reduce the final waste volume. Neutralization of the LLW is also desirable since acidic liquids to not allow cement to cure properly. The nitrate compounds are very soluble and easily leached from solid waste forms; therefore, denitration is desirable. Thermal and chemical denitration technologies have the advantages of water removal, neutralization, and denitration. The inclusion of additives during thermal treatment were investigated as a method of forming insoluable waste conditions.

Authors:
;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
OSTI Identifier:
543678
Report Number(s):
INEL/CON-97-00507; CONF-970537-
ON: DE97053244; TRN: 98:000887
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Conference
Resource Relation:
Conference: 18. annual DOE low-level radioactive waste management conference, Salt Lake City, UT (United States), 20-22 May 1997; Other Information: PBD: 1997
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; CEMENTS; WATER REMOVAL; WASTE FORMS; GROUTING; ADDITIVES; DENITRATION; CURING; MINERALIZATION; WASTE PROCESSING; LEACHING

Citation Formats

Nenni, J A, and Boardman, R D. Thermal denitration and mineralization of waste constituents. United States: N. p., 1997. Web.
Nenni, J A, & Boardman, R D. Thermal denitration and mineralization of waste constituents. United States.
Nenni, J A, and Boardman, R D. 1997. "Thermal denitration and mineralization of waste constituents". United States. https://www.osti.gov/servlets/purl/543678.
@article{osti_543678,
title = {Thermal denitration and mineralization of waste constituents},
author = {Nenni, J A and Boardman, R D},
abstractNote = {In order to produce a quality grout from LLW using hydraulic cements, proper conditioning of the waste is essential for complete cement curing. Several technologies were investigated as options for conditions. Since the LLW is dilute, removal of all, or most, of the water will significantly reduce the final waste volume. Neutralization of the LLW is also desirable since acidic liquids to not allow cement to cure properly. The nitrate compounds are very soluble and easily leached from solid waste forms; therefore, denitration is desirable. Thermal and chemical denitration technologies have the advantages of water removal, neutralization, and denitration. The inclusion of additives during thermal treatment were investigated as a method of forming insoluable waste conditions.},
doi = {},
url = {https://www.osti.gov/biblio/543678}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Aug 01 00:00:00 EDT 1997},
month = {Fri Aug 01 00:00:00 EDT 1997}
}

Conference:
Other availability
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