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Title: A historical review of Waste Isolation Pilot Plant backfill development

Abstract

Backfills have been part of Sandia National Laboratories' [Sandia's] Waste Isolation Pilot Plant [WIPP] designs for over twenty years. Historically, backfill research at Sandia has depended heavily on the changing mission of the WIPP facility. Early testing considered heat producing, high level, wastes. Bentonite/sand/salt mixtures were evaluated and studies focused on developing materials that would retard brine ingress, sorb radionuclides, and withstand elevated temperatures. The present-day backfill consists of pure MgO [magnesium oxide] in a pelletized form and is directed at treating the relatively low contamination level, non-heat producing, wastes actually being disposed of in the WIPP. Its introduction was motivated by the need to scavenging CO{sub 2} [carbon dioxide] from decaying organic components in the waste. However, other benefits, such as a substantial desiccating capacity, are also being evaluated. The MgO backfill also fulfills a statutory requirement for assurance measures beyond those needed to demonstrate compliance with the US Environmental Protection Agency [EPA] regulatory release limits. However, even without a backfill, the WIPP repository design still operates within EPA regulatory release limits.

Authors:
; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
756419
Report Number(s):
SAND2000-1416C
TRN: US0003819
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: ICEM Conference, Nagoya (JP), 09/26/1999--09/30/1999; Other Information: PBD: 5 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; WIPP; DESIGN; BACKFILLING; HISTORICAL ASPECTS; MAGNESIUM OXIDES; CARBON DIOXIDE; REMOVAL; RADIOACTIVE WASTE DISPOSAL

Citation Formats

KRUMHANSL,JAMES L., MOLECKE,MARTIN A., PAPENGUTH,HANS W., and BRUSH,LAURENCE H. A historical review of Waste Isolation Pilot Plant backfill development. United States: N. p., 2000. Web.
KRUMHANSL,JAMES L., MOLECKE,MARTIN A., PAPENGUTH,HANS W., & BRUSH,LAURENCE H. A historical review of Waste Isolation Pilot Plant backfill development. United States.
KRUMHANSL,JAMES L., MOLECKE,MARTIN A., PAPENGUTH,HANS W., and BRUSH,LAURENCE H. Mon . "A historical review of Waste Isolation Pilot Plant backfill development". United States. https://www.osti.gov/servlets/purl/756419.
@article{osti_756419,
title = {A historical review of Waste Isolation Pilot Plant backfill development},
author = {KRUMHANSL,JAMES L. and MOLECKE,MARTIN A. and PAPENGUTH,HANS W. and BRUSH,LAURENCE H.},
abstractNote = {Backfills have been part of Sandia National Laboratories' [Sandia's] Waste Isolation Pilot Plant [WIPP] designs for over twenty years. Historically, backfill research at Sandia has depended heavily on the changing mission of the WIPP facility. Early testing considered heat producing, high level, wastes. Bentonite/sand/salt mixtures were evaluated and studies focused on developing materials that would retard brine ingress, sorb radionuclides, and withstand elevated temperatures. The present-day backfill consists of pure MgO [magnesium oxide] in a pelletized form and is directed at treating the relatively low contamination level, non-heat producing, wastes actually being disposed of in the WIPP. Its introduction was motivated by the need to scavenging CO{sub 2} [carbon dioxide] from decaying organic components in the waste. However, other benefits, such as a substantial desiccating capacity, are also being evaluated. The MgO backfill also fulfills a statutory requirement for assurance measures beyond those needed to demonstrate compliance with the US Environmental Protection Agency [EPA] regulatory release limits. However, even without a backfill, the WIPP repository design still operates within EPA regulatory release limits.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}

Conference:
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