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Field studies and modeling of chemical processes in the unsaturated zone

Description: Technical assistance is being provided to Nuclear Materials Safety and Safeguards of the Nuclear Regulatory Commission to evaluate the validity of several guidelines listed in 10 CFR Part 61 for the future burial of low-level radioactive waste. Those guidelines include the requirement that the burial site shall be capable of being modeled. Both laboratory- and field-scale studies are being conducted under unsaturated moisture conditions and under steady-state and unsteady-state flow conditions.… more
Date: January 1, 1985
Creator: Polzer, W.L. & Fuentes, H.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Influence of basalt/groundwater interactions on radionuclide migration

Description: The work presented here is a partial summary of the experimental results obtained in the Laboratory Analog Program. Two aspects of this effort are (1) the interaction between simulated basaltic groundwater and basalt fissures that were either freshly cleaved or laboratory altered by hydrothermal treatment with the simulated groundwater and (2) the effect of this interaction on radionuclide migration through these basalt fissures. The following conclusions of this study bear heavily on the predi… more
Date: January 1, 1984
Creator: Vandegrift, G.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Laboratory evaluation of high-temperature sulfur removal sorbents for direct coal-fired turbines: Final report

Description: Direct coal-fired turbine concepts currently being developed require substantial levels of sulfur removal from high-temperature gas streams. Calcium-based sorbents, limestones, dolomites, limes and lime hydrates, are capable of sulfur removal in direct coal-fired turbine combustor environments at temperature up to 1200/degree/C. Two types of desulfurizer processes are considered in this report using calcium- based sorbents: fluidized bed desulfurizer using coarse sorbent particles (300-1000 ..m… more
Date: June 1, 1987
Creator: Newby, R.A.; DeZubay, E.A. & Chamberlin, R.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal power and combustion. Quarterly report, January--March 1977

Description: ERDA's coal combustion and power program has focused on two major areas: Direct combustion of coal and advanced power systems. Efforts in the area of direct combustion are concentrated on: Development of atmospheric and pressurized systems capable of burning high-sulfur coal of all rank and quality in fluidized-bed combustors; development of advanced technology power systems to generate power more economically than present technology permits while using medium- and high-sulfur coal in an enviro… more
Date: December 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quarterly technical progress report for the period ending June 30, 1984

Description: The Magnetohydrodynamics Program (Component Development and Integration Facility) in Butte, Montana, continued its site preparation for the TRW first-stage combustor installation. In the area of flue gas cleanup, our in-house research program is continuing its investigation into the causes of sorbent attrition in PETC's fluidized-bed copper oxide process for simultaneous SO/sub 2//NO/sub x/ removal. Interwoven with these tests is a series of spray dryer/electrostatic precipitator tests that are… more
Date: October 1, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reactor safety research programs. Quarterly progress report, January 1--March 31, 1977

Description: The projects reported each quarter are the following: Gas Reactor Safety Evaluation, THOR Code Development, SSC Code Development, LMFBR and LWR Safety Experiments, Fast Reactor Safety Code Validation, Technical Coordination of Structural Integrity, and Fast Reactor Safety Reliability Assessment.
Date: May 1, 1977
Creator: Romano, A. J. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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SCDAP/RELAP5/MOD2 code manual

Description: This report describes the materials properties correlations and computer subcodes (MATPRO) developed for use with various light water reactor (LWR) accident analysis computer programs. Formulation of the materials properties are generally semiempirical in nature. The materials properties subcodes contained in this document are for uranium, uranium dioxide, mixed uranium-plutonium dioxide fuel, zircaloy cladding, zirconium dioxide, stainless steel, stainless steel oxide, silver-indium-cadmium al… more
Date: February 1, 1990
Creator: Hohorst, J. K. (ed.) (EG and G Idaho, Inc., Idaho Falls, ID (USA))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal technology program quarterly progress report for the period ending December 31, 1975

Description: Installation of the bench-scale hydrocarbonization research system was completed and initial pressurization was followed by heat up, leak checking, and testing of instrumentation. Shakedown runs were completed using 5 and 20 lb of pulverized coal as feed and pyrolyzing the coal at approx. 1050/sup 0/F under 5 atm of nitrogen pressure. Some excellent results have been obtained in the additive agglomeration studies using liquid additives designed for the petroleum industry. Characterization studi… more
Date: March 1, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Scaled-up testing of alternative trapping agents for radioactive constituents in plant vent streams

Description: Radioactive discharges from the Portsmouth Gaseous Diffusion Plant vent streams are in compliance with present standards specifying radiation limits. Regulatory trends have become increasingly restrictive on the maximum permissible dose to a member of the public. This could mean more stringent controls for radioactive emissions in the future. Fixed bed activated alumina (Al/sub 2/O/sub 3/) trapping is currently the principal method of limiting plant vent stream emissions of technetium and urani… more
Date: January 1, 1982
Creator: Saraceno, A. J. & Reiter, N. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Molten nitrate salt technology development status report

Description: Recognizing thermal energy storage as potentially critical to the successful commercialization of solar thermal power systems, the Department of Energy (DOE) has established a comprehensive and aggressive thermal energy storage technology development program. Of the fluids proposed for heat transfer and energy storage molten nitrate salts offer significant economic advantages. The nitrate salt of most interest is a binary mixture of NaNO/sub 3/ and KNO/sub 3/. Although nitrate/nitrite mixtures … more
Date: March 1981
Creator: Carling, R. W.; Kramer, C. M.; Bradshaw, R. W.; Nissen, D. A.; Goods, S. H.; Mar, R. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sorption coefficients for radionuclides on samples from the water-bearing Magenta and Culebra members of the Rustler Formation

Description: The sorbing characteristics of samples from the Magenta and Culebra dolomites of the Rustler Formation (which overlie the proposed site for the Waste Isolation Pilot Plant (WIPP) in southeastern New Mexico) for various radionuclides have been studied. Core samples extracted from various depths and boreholes within a given formation were selected to provide a cross section of materials which are present in the formations. They varied in composition from pure dolomite to nearly pure anhydrite. Th… more
Date: November 1, 1980
Creator: Lynch, A. W. & Dosch, R. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reactor safety research programs. Quarterly progress report, 1 July--30 September 1977

Description: HTGR safety evaluation included studies on fission product release; materials, chemistry, and instrumentation; structural evaluation; and analytical safety evaluation. LMFBR work included accident sequence studies, technical coordination of structural integrity, and SSC code development and validation. LWR safety studies included thermal/hydraulic analysis; THOR code development; and appraisal of analysis development in foreign countries.
Date: October 1, 1977
Creator: Kouts, H.J.C. & Kato, W.Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental studies of actinides in molten salts

Description: This review stresses techniques used in studies of molten salts containing multigram amounts of actinides exhibiting intense alpha activity but little or no penetrating gamma radiation. The preponderance of studies have used halides because oxygen-containing actinide compounds (other than oxides) are generally unstable at high temperatures. Topics discussed here include special enclosures, materials problems, preparation and purification of actinide elements and compounds, and measurements of v… more
Date: June 1, 1985
Creator: Reavis, J.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radionuclide reactions with groundwater and basalts from Columbia River basalt formations

Description: Chemical reactions of radionuclides with geologic materials found in Columbia River basalt formations were studied. The objective was to determine the ability of these formations to retard radionuclide migration from a radioactive waste repository located in deep basalt. Reactions that can influence migration are precipitation, ion-exchange, complexation, and oxidation-reduction. These reactions were studied by measuring the effects of groundwater composition and redox potential (Eh) on radionu… more
Date: June 1, 1981
Creator: Barney, G.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Interaction of radionuclides with geomedia associated with the Waste Isolation Pilot Plant (WIPP) site in New Mexico

Description: A survey of the potential of geological media from the vicinity of the Waste Isolation Pilot Plant site in Southeastern New Mexico for retardation of radionuclide migration in an aqueous carrier was conducted. The survey included the measurement of sorption coefficients (Kd) for twelve radionuclides between three natural water simulants and ten samples from various geological strata. The nuclides included /sup 137/Cs, /sup 85/Sr, /sup 131/I, /sup 99/Tc, /sup 125/Sb, /sup 144/Ce, /sup 152/Eu, /s… more
Date: June 1, 1978
Creator: Dosch, R.G. & Lynch, A.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Laboratory studies of radionuclide distributions between selected groundwaters and geologic media. Progress report, October 1, 1979-September 30, 1980

Description: During FY-1980, Los Alamos Scientific Laboratory contributions to the Waste/Rock Interactions Technology program were primarily in the areas of migration-rate studies using crushed rock, whole core, and fractured core columns; parametric studies of variables which may influence radionuclide sorption-desorption behavior; and initial studies of actinide chemistry in near-neutral solutions and Eh control. Batch experiments in both air and a controlled atmosphere (nitrogen, less than or equal to 0.… more
Date: January 1, 1981
Creator: Daniels, W.R. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Waste isolation safety assessment program. Task 4. Third contractor information meeting

Description: The Contractor Information Meeting (October 14 to 17, 1979) was part of the FY-1979 effort of Task 4 of the Waste Isolation Safety Assessment Program (WISAP): Sorption/Desorption Analysis. The objectives of this task are to: evaluate sorption/desorption measurement methods and develop a standardized measurement procedure; produce a generic data bank of nuclide-geologic interactions using a wide variety of geologic media and groundwaters; perform statistical analysis and synthesis of these data;… more
Date: June 1, 1980
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Reactor safety research programs. Quarterly progress report, October 1--December 31, 1977

Description: HTGR safety evaluation included studies on fission product release; materials, chemistry, and instrumentation; structural evaluation; and analytical safety evaluation. LMFBR safety evaluation included studies on accident sequences, technical coordination of structural integrity, and SSC code development and validation. LWR safety studies included thermal/hydraulic accident analysis, THOR code development, and stress corrosion cracking of PWR steam generator tubing.
Date: January 1, 1978
Creator: Romano, A.J. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Technical Division quarterly progress report, October 1--December 31, 1976

Description: The first in a series of quarterly progress reports on ERDA budgeted activities subcontracted to Allied Chemical Corporation at the Idaho National Engineering Laboratory is presented. The work is performed by the Technical Division and is divided into three subjects. Fuel cycle research and development includes fluidized-bed calcination and post treatment of commercial nuclear fuel process waste; the storage of fission product noble gas; the catalyzed reaction between NO/sub x/ and NH/sub 3/; t… more
Date: March 1, 1977
Creator: Slansky, C. M. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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