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State-of-the-art for evaluating the potential impact of tectonism and volcanism on a radioactive waste repository

Description: Most estimates of the time required for safe isolation of radioactive wastes from the biosphere range from 100,000 to 1,000,000 years. For such long time spans, it is necessary to assess the potential effects of geologic processes such as volcanism and tectonic activity on the integrity of geologic repositories. Predictions of geologic phenomena can be based on probabilistic models, which assume a random distribution of events. The necessary historic and geologic records are rarely available to… more
Date: July 16, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

State-of-the-art for evaluating the potential impact of flooding on a radioactive waste repository

Description: This report is a review of the state-of-the-art for evaluating the potential impact of flooding on a deep radioactive-waste repository, namely, for predicting the future occurrence of catastrophic flooding and for estimating the effect of such flooding on waste containment characteristics. Several detrimental effects are identified: flooding can increase groundwater seepage velocities through a repository within the framework of the existing hydrologic system and thus increase the rate of radio… more
Date: July 16, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

State-of-the-art for evaluating the potential effects of erosion and deposition on a radioactive waste repository. Final report

Description: The potential impact of future geologic processes on the integrity of a deep, high-level radioactive-waste repository is evaluated. The following study identifies the potential consequences of surface erosion and deposition on sub-surface repository containment characteristics and assesses the ability to measure and predict quantitatively the rates and corresponding extent of these processes in the long term. Numerous studies of the magnitudes and rates of surficial erosion and deposition that … more
Date: July 16, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Risk assessment and radioactive waste management

Description: Problems associated with radioactive waste management, both technological and administrative, have become a serious constraint in the development of nuclear power. An approach toward understanding these problems consists of placing them in a perspective where the risks of radioactive waste management might be evaluated in relation to similar problems facing society so that consistent judgments can be made.
Date: August 16, 1977
Creator: Cohen, J.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the need, feasibility, and siting of the MRS in Tennessee

Description: This summary report outlines the results of an independent assessment of the need, feasibility, and siting of the proposed Monitored Retrievable Storage (MRS) facility. The detailed reports of this assessment are included as appendices to the summary report. The Department of Energy (DOE) has concluded that the MRS is not absolutely necessary, but preferred, in order to manage and move spent fuel from reactors to a repository. The team has attemped to assess need'' by comparing to advantages an… more
Date: December 16, 1985
Creator: Colglazier, E.W. Jr. (Tennessee Univ., Knoxville, TN (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental impact of a teratogenic actinide: a case study of americium-241

Description: Americium-241 is widely used as a radiation source, but it also has some potential risk if taken into the body. Although the radiotoxicity of americium-241 is small compared to other transuranic actinides, its effects on the reproductive system and on development of the placenta are more damaging than the effects of plutonium-239. A previous report based on a worst-case scenario involving a hypothetical fire accident in a contaminated facility indicated that there could have been a significant … more
Date: October 16, 1985
Creator: Wang, J. & Yang, J.Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Software Quality Assurance for Nuclear Safety Systems

Description: The US Department of Energy has undertaken an initiative to improve the quality of software used to design and operate their nuclear facilities across the United States. One aspect of this initiative is to revise or create new directives and guides associated with quality practices for the safety software in its nuclear facilities. Safety software includes the safety structures, systems, and components software and firmware, support software and design and analysis software used to ensure the s… more
Date: May 16, 2004
Creator: Sparkman, D R & Lagdon, R
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the need, feasibility, and siting of the MRS in Tennessee. Draft final report

Description: This summary report outlines the results of an independent assessment of the need, feasibility, and siting of the proposed Monitored Retrievable Storage (MRS) facility. The detailed reports of this assessment are included as appendices to the summary report. The Department of Energy (DOE) has concluded that the MRS is not absolutely necessary, but preferred, in order to manage and move spent fuel from reactors to a repository. The team has attemped to assess ``need`` by comparing to advantages … more
Date: December 16, 1985
Creator: Colglazier, E. W. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low Cost Hydrogen Production Platform

Description: A technology and design evaluation was carried out for the development of a turnkey hydrogen production system in the range of 2.4 - 12 kg/h of hydrogen. The design is based on existing SMR technology and existing chemical processes and technologies to meet the design objectives. Consequently, the system design consists of a steam methane reformer, PSA system for hydrogen purification, natural gas compression, steam generation and all components and heat exchangers required for the production o… more
Date: October 16, 2009
Creator: Timothy M. Aaron, Jerome T. Jankowiak
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Yucca Mountain Site Charecterization Project Design Package 1C System Safety Analysis

Description: The purpose of this analysis is to systematically identify and evaluate hazards related to the Yucca Mountain Project Exploratory Studies Facility (ESF) Design Package IC, Surface Utilities (for a list of package 1C subsystems see section 3). This process is an integral part of the systems engineering process; whereby safety is considered during planning, design, testing, and construction. A largely qualitative approach was used since a radiological System Safety Analysis is not required. The r… more
Date: October 16, 1995
Creator: TRW
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Human Health and Ecological Risk Assessment for the Operation of the Explosives Waste Treatment Facility at Site 300 of the Lawrence Livermore National Laboratory, Volume 1: Report of Results

Description: Human health and ecological risk assessments are required as part of the Resource Recovery and Conservation Act (RCRA) permit renewal process for waste treatment units. This risk assessment is prepared in support of the RCRA permit renewal for the Explosives Waste Treatment Facility (EWTF) at Site 300 of the Lawrence Livermore National Laboratory (LLNL). The human health risk assessment is based on U.S. Environmental Protection Agency- (U.S. EPA) approved emissions factors and on California Env… more
Date: March 16, 2007
Creator: Gallegtos, G M; Daniels, J I & Wegrecki, A M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Plutonium Oxidation State Geochemistry in the SRS Subsurface Environment

Description: The environmental mobility of plutonium (Pu) is profoundly influenced by its oxidation state. Pu(IV) is 2 to 3 orders of magnitude slower moving than Pu(V) or Pu(VI). For performance and risk assessment calculations, Pu waste has been assumed to exist in the less mobile reduced form, Pu(IV). Resent work on the chemistry of Pu02 by Haschke and others (2000) has shown that Pu02 surface is oxidized in the presence of water, forming as much as 27 percent Pu(VI). This has significant implications to… more
Date: April 16, 2003
Creator: Kaplan, D.I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Monitoring Environmental Recovery at Terminated Produced Water Discharge Sites in Coastal Louisiana Waters

Description: This report presents the results of a study of terminated produced water discharge sites in the coastal waters of Louisiana. Environmental recovery at the sites is documented by comparing pre-termination and post-termination (six months and one year) data. Produced water, sediments, and sediment interstitial water samples were analyzed for radionuclides, metals, and hydrocarbons. Benthic infauna were identified from samples collected in the vicinity of the discharge and reference sites. Radium … more
Date: August 16, 1999
Creator: Continental Shelf Associates, Inc.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary Selection of Mgr Design Basis Events

Description: The purpose of this analysis is to identify the preliminary design basis events (DBEs) for consideration in the design of the Monitored Geologic Repository (MGR). For external events and natural phenomena (e.g., earthquake), the objective is to identify those initiating events that the MGR will be designed to withstand. Design criteria will ensure that radiological release scenarios resulting from these initiating events are beyond design basis (i.e., have a scenario frequency less than once pe… more
Date: September 16, 1999
Creator: Kappes, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hazard Evaluation for the Saltwell Chempump and a Saltwell Centrifugal Pump Design using Service Water for Lubrication and Cooling

Description: This report documents results of a preliminary hazard analysis (PHA) covering the existing Crane Chempump and the new salt well pumping design. Three hazardous conditions were identified for the Chempump and ten hazardous conditions were identified for the new salt well pump design. This report also presents the results of the control decision/allocation process. A backflow preventer and associated limiting condition for operation were assigned to one hazardous condition with the new design.
Date: November 16, 2000
Creator: Grams, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Incorporating the Technology Roadmap Uncertainties into the Project Risk Assessment

Description: This paper describes two methods, Technology Roadmapping and Project Risk Assessment, which were used to identify and manage the technical risks relating to the treatment of sodium bearing waste at the Idaho National Engineering and Environmental Laboratory. The waste treatment technology under consideration was Direct Vitrification. The primary objective of the Technology Roadmap is to identify technical data uncertainties for the technologies involved and to prioritize the testing or developm… more
Date: January 16, 2002
Creator: Bonnema, B. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Carbon Capture and Sequestration (via Enhanced Oil Recovery) from a Hydrogen Production Facility in an Oil Refinery

Description: The project proposed a commercial demonstration of advanced technologies that would capture and sequester CO2 emissions from an existing hydrogen production facility in an oil refinery into underground formations in combination with Enhanced Oil Recovery (EOR). The project is led by Praxair, Inc., with other project participants: BP Products North America Inc., Denbury Onshore, LLC (Denbury), and Gulf Coast Carbon Center (GCCC) at the Bureau of Economic Geology of The University of Texas at Aus… more
Date: June 16, 2010
Creator: Mehlman, Stewart
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quantitative Assessment of Probabilistic Measures for Proliferation Resistance.

Description: An evaluation methodology for proliferation resistance (PR) and physical protection (PP) is under development by a PR&PP Experts Group [1]. It involves pathway evaluation and quantification of associated measures for PR and PP. In this paper, probabilistic risk assessment approaches are used to further develop the evaluation procedure for proliferation resistance. This work is part of the Generation IV methodology development that is being sponsored by the U.S. Department of Energy. Detaile… more
Date: August 16, 2005
Creator: Yue, M.; Cheng, L. & Bari, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Use of the Homeland-Defense Operational Planning System (HOPS) for Emergency Management

Description: The Homeland-Defense Operational Planning System (HOPS), is a new operational planning tool leveraging Lawrence Livermore National Laboratory's expertise in weapons systems and in sparse information analysis to support the defense of the U.S. homeland. HOPS provides planners with a basis to make decisions to protect against acts of terrorism, focusing on the defense of facilities critical to U.S. infrastructure. Criticality of facilities, structures, and systems is evaluated on a composite matr… more
Date: December 16, 2005
Creator: Durling, Jr., R L & Price, D E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization of 200-UP-1 Aquifer Sediments and Results of Sorption-Desorption Tests Using Spiked Uncontaminated Groundwater

Description: Core characterization showed only 4 out of 13 core liner samples were intact samples and that the others were slough material. The intact samples showed typical Ringold Unit E characteristics such as being dominated by gravel and sand. Moderately reducing conditions are inferred in some core from borehole C4299. This reducing condition was caused by the hard tool process used to drill the wells. One core showed significant presence of ferric iron oxide/clay coatings on the gravels. There were n… more
Date: November 16, 2005
Creator: Um, Wooyong; Serne, R JEFFREY.; Bjornstad, Bruce N.; Schaef, Herbert T.; Brown, Christopher F.; Legore, Virginia L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radionuclides, Metals, and Hydrocarbons in Oil and Gas Operational Discharges and Environmental Samples Associated with Offshore Production Facilities on the Texas/Louisiana Continental Shelf with an Environmental Assessment of Metals and Hydrocarbons

Description: This report presents concentrations of radionuclides, metals, and hydrocarbons in samples of produced water and produced sand from oil and gas production platforms located offshore Texas and Louisiana. Concentrations in produced water discharge plume/receiving water, ambient seawater, sediment, interstitial water, and marine animal tissue samples collected in the vicinity of discharging platforms and reference sites distant from discharges are also reported and discussed. An environmental risk … more
Date: August 16, 1999
Creator: Continental Shelf Associates, Inc.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stratospheric Ozone Depletion: Methyl Bromide Control Measures

Description: This report is intended to help the reader follow changes over time in regulations domestic and international - governing methyl bromide for its potential ozone-depleting effects. Methyl bromide, like chlorofluorocarbons (CFCs), has been implicated by scientists in contributing to stratospheric ozone depletion, which may pose health threats to living organisms due to increased exposure to harmful ultraviolet (UV) radiation. Methyl bromide is currently used widely as a pesticide in international… more
Date: October 16, 1997
Creator: Morrissey, Wayne A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a common software interface

Description: The variety of applications, databases, and information technologies makes it difficult to locate and retrieve information or applications that are otherwise openly available. The promise of the World Wide Web was that it was a paradigm for organizing and distributing information. Under this project, we looked at how we could more tightly couple the Web with the UNIX operating system for exchanging information, connecting programs and data, and facilitating collaboration between people in a mor… more
Date: June 16, 1997
Creator: Davis, B. & Parrett, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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