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Underground reactor containments: An option for the future?

Description: Changing world conditions and changing technologies suggest that serious consideration should be given to siting of nuclear power plants underground. Underground siting is not a new concept. Multiple research reactors, several weapons production reactors, and one power reactor have been built underground. What is new are the technologies and incentives that may now make underground siting a preferred option. The conditions and technologies, along with their implications, are discussed herein. U… more
Date: February 18, 1997
Creator: Forsberg, C.W. & Kress, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Analysis of panthers full-scale heat transfer tests with RELAP5

Description: The RELAP5 code is being assessed on the full-scale Passive Containment Cooling System (PCCS) in the Performance ANalysis and Testing of HEat Removal Systems (PANTHERS) facility at Societa Informazioni Termoidrauliche (SIET) in Italy. PANTHERS is a test facility with fall-size prototype beat exchangers for the PCCS in support of the General Electric`s (GE) Simplified Boiling Water Reactor (SBWR) program. PANTHERS tests with a low noncondensable gas concentration and with a high noncondensable g… more
Date: January 1, 1996
Creator: Parlatan, Y.; Boyer, B.D.; Jo, J. & Rohatgi, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Contamination control aspects of attaching waste drums to the WIPP Waste Characterization Chamber

Description: Argonne National Laboratory West (ANL-W) is verifying the characterization and repackaging of contact-handled transuranic (CH-TRU) mixed waste in support of the Waste Isolation Pilot Program (WIPP) project located in Carlsbad, New Mexico. The WIPP Waste Characterization Chamber (WCC) was designed to allow opening of transuranic waste drums for this process. The WCC became operational in March of 1994 and has characterized approximately 240 drums of transuranic waste. The waste drums are interna… more
Date: December 31, 1998
Creator: Rubick, L. M. & Burke, L. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mathematical modeling of permeation grouting and subsurface barrier performance

Description: The injection of solution grouts into the subsurface can be used to form underground barriers for the containment of contaminants. The technology requires identifying suitable grout materials, specifically fluids which exhibit a large increase in viscosity after injection and eventually solidify after a controllable period, thus sealing permeable zones. The authors have developed a new fluid property module for the reservoir simulator TOUGH2 to model grout injection, taking into account the inc… more
Date: September 1, 1996
Creator: Finsterle, S.; Oldenburg, C. M.; James, A. L.; Pruess, K. & Moridis, G. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological engineering services for the design of special contamination containments. Final report

Description: The purpose of this study was to provide radiological engineering services for the design of special contamination containments. These containments were to be used during the replacement of leaking and damaged gaskets on the glove boxes in Technical Area-55 (TA-55). The damaged gaskets involved 18 windows and 5 interconnecting spool pieces in fuel processing glove boxes. The work scope included the design and manufacture of special contamination containment enclosures (containments), the prepar… more
Date: December 31, 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Verification of the integrity of barriers using gas diffusion

Description: In-situ barrier materials and designs are being developed for containment of high risk contamination as an alternative to immediate removal or remediation. The intent of these designs is to prevent the movement of contaminants in either the liquid or vapor phase by long-term containment, essentially buying time until the contaminant depletes naturally or a remediation can be implemented. The integrity of the resultant soil-binder mixture is typically assessed by a number of destructive laborato… more
Date: June 1, 1997
Creator: Ward, D.B. & Williams, C.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

BMC{trademark}: Baseline report

Description: Barrier Membrane Containment (BMC){trademark} is a high-density polyethylene membrane (HOPE) groundwater barrier and pass-through system, with applications ranging from plume control and containment to groundwater manipulation coupled with in-site treatment. BMC{trademark} system can function as a permeable or impermeable reaction wall, a cut-off wall, interceptor trenches, a barrier with collection and/or monitoring system and a pass-through in a funnel and gate configuration. BMC{trademark} c… more
Date: July 31, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Repository seals requirement study

Description: The Yucca Mountain Site Characterization Project, managed by the Civilian Radioactive Waste Management System (CRWMS) Management and Operating Contractor (M and O) is conducting investigations to support the Viability Assessment and the License Application for a high-level nuclear waste repository at Yucca Mountain, Nevada. The sealing subsystem is part of the Yucca Mountain Waste Isolation System. The Yucca Mountain Site Characterization Project is currently evaluating the role of the sealing … more
Date: November 3, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of a permeable reactive barrier technology for use at Rocky Flats Environmental Technology Site (RFETS)

Description: Three reactive materials were evaluated at laboratory scale to identify the optimum treatment reagent for use in a Permeable Reactive Barrier Treatment System at Rocky Flats Environmental Technology Site (RFETS). The contaminants of concern (COCS) are uranium, TCE, PCE, carbon tetrachloride, americium, and vinyl chloride. The three reactive media evaluated included high carbon steel iron filings, an iron-silica alloy in the form of a foam aggregate, and a peculiar humic acid based sorbent (Huma… more
Date: January 1, 2000
Creator: DWYER,BRIAN P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

BMC{trademark}: Baseline report; Greenbook (chapter)

Description: Barrier Membrane Containment (BMC){trademark} is a high-density polyethylene membrane (HDPE) groundwater barrier and pass-through system, with applications ranging from plume control and containment to groundwater manipulation coupled with in-site treatment. BMC{trademark} system can function as a permeable or impermeable reaction wall, a cut-off wall, interceptor trenches, a barrier with collection and/or monitoring system, and a pass-through in a funnel and gate configuration. BMC{trademark} … more
Date: July 31, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reactive barriers for {sup 137}Cs retention

Description: {sup 137}Cs was dispersed globally by cold war activities and, more recently, by the Chernobyl accident. Engineered extraction of {sup 137}Cs from soils and groundwaters is exceedingly difficult. Because the half life of {sup 137}Cs is only 30.2 years, remediation might be more effective (and less costly) if {sup 137}Cs bioavailability could be demonstrably limited for even a few decades by use of a reactive barrier. Essentially permanent isolation must be demonstrated in those few settings whe… more
Date: May 19, 2000
Creator: KRUMHANSL,JAMES L.; BRADY,PATRICK V. & ANDERSON,HOWARD L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

BMC{trademark}: Baseline report; Summary

Description: Barrier Membrane Containment (BMC{trademark}) is a high-density polyethylene membrane (HDPE) groundwater barrier and pass-through system, with applications ranging from plume control and containment, to groundwater manipulation, coupled with in-site treatment. BMC{trademark} system can function as a permeable or impermeable reaction wall, a cut-off wall, interceptor trenches, a barrier with collection and/or monitoring system, and a pass-through in a funnel and gate configuration. BMC{trademark… more
Date: July 31, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Glovebox characterization and barrier integrity testing using fluorescent powder

Description: This paper presents a method for characterizing the spread of contamination and testing the barrier integrity of a new glovebox during material transfer operations and glove change-outs using fluorescent powder. Argonne National Laboratory-West has performed this test on several new gloveboxes prior to putting them into service. The test is performed after the glovebox has been leak tested and all systems have been verified to be operational. The purpose of the test is to show that bag-in/bag-o… more
Date: July 1, 1996
Creator: Wahlquist, D. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reliability modeling of an engineered barrier system

Description: The Weibull distribution is widely used in reliability literature as a distribution of time to failure, as it allows for both increasing failure rate (IFR) and decreasing failure rate (DFR) models. It has also been used to develop models for an engineered barrier system (EBS), which is known to be one of the key components in a deep geological repository for high level radioactive waste (HLW). The EBS failure time can more realistically be modelled by an IFR distribution, since the failure rate… more
Date: April 1, 1993
Creator: Ananda, M. M. A.; Singh, A. K. & Flueck, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The role of plants and animals in isolation barriers at Hanford, Washington

Description: The Hanford Site Surface Barrier Development Program was organized in 1985 to test the effectiveness of various barrier designs in minimizing the effects of water infiltration; plant, animal, and human intrusion; and wind and water erosion on buried wastes, and in minimizing the emanation of noxious gases. Plants will serve to minimize drainage and erosion, but present,the potential for growing roots into wastes. Animals burrow holes into the soil, and the burrow holes could allow water to pref… more
Date: September 1, 1995
Creator: Link, S. O.; Cadwell, L. L.; Petersen, K. L.; Sackschewsky, M. R. & Landeen, D. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Accident source terms for boiling water reactors with high burnup cores.

Description: The primary objective of this report is to provide the technical basis for development of recommendations for updates to the NUREG-1465 Source Term for BWRs that will extend its applicability to accidents involving high burnup (HBU) cores. However, a secondary objective is to re-examine the fundamental characteristics of the prescription for fission product release to containment described by NUREG-1465. This secondary objective is motivated by an interest to understand the extent to which rese… more
Date: November 1, 2007
Creator: Gauntt, Randall O.; Powers, Dana Auburn & Leonard, Mark Thomas
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Method for Making a Uranium Chloride Salt Product

Description: The subject apparatus provides a means to produce UCl3, in large quantities without incurring corrosion of the containment vessel or associated apparatus. Gaseous Cl is injected into a lower layer of Cd where CdCl2 is formed. Due to is lower density, the CdCl2 rises through the Cd layer into a layer of molten LiCl-KCL salt where a rotatable basket containing uranium ingots is suspended. The CdCl2 reacts with the uranium to form UCl, and Cd. Due to density differences, the Cd sinks down to the l… more
Date: October 5, 2004
Creator: Miller, William F. & Tomczuk, Zygmunt
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
open access

History of Sandia National Laboratories` auxiliary closure mechanisms

Description: An essential component of a horizontal, underground nuclear test setup at the Nevada Test Site is the auxiliary closure system. The massive gates that slam shut immediately after a device has been detonated allow the prompt radiation to pass, but block debris and hot gases from continuing down the tunnel. Thus, the gates protect experiments located in the horizontal line-of-sight steel pipe. Sandia National Laboratories has been the major designer and developer of these closure systems. This re… more
Date: December 1, 1993
Creator: Weydert, J. C. & Ponder, G. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Test plan for headspace gas concentration measurement and headspace ventilation rate measurement for DCRTs 241-A-244, 241-BX-244, 241-S-244, 241-TX-244

Description: This test plan provides the directions to characterize the headspace gas concentrations and the headspace ventilation rate for double contained receiver tanks 241-A-244, 241-BX-244, 241-S-244, and 241-TX-244.
Date: August 4, 1998
Creator: Bauer, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Field-scale permeation testing of jet-grouted buried waste sites

Description: The Idaho National Engineering Laboratory (INEL) conducted field-scale hydraulic conductivity testing of simulated buried waste sites with improved confinement. The improved confinement was achieved by jet grouting the buried waste, thus creating solid monoliths. The hydraulic conductivity of the monoliths was determined using both the packer technique and the falling head method. The testing was performed on simulated buried waste sites utilizing a variety of encapsulating grouts, including hi… more
Date: December 31, 1996
Creator: Loomis, G. G. & Zdinak, A. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Stabilization of in-tank residuals and external-tank soil contamination: FY 1997 interim report

Description: This interim report evaluates various ways to stabilize decommissioned waste tanks and contaminated soils at the AX Tank Farm as part of a preliminary evaluation of end-state options for the Hanford tanks. Five technical areas were considered: (1) emplacement of smart grouts and/or other materials, (2) injection of chemical-getters into contaminated soils surrounding tanks (soil mixing), (3) emplacement of grout barriers under and around the tanks, (4) the use of engineered barriers over the ta… more
Date: October 9, 1997
Creator: Becker, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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