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in subjects: "053000 -- Nuclear Fuels-- Environmental Aspects"

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Interactions of tailings leachate with local liner materials found at Canonsburg, Pennsylvania.

The mill tailings site at Canonsburg, Pennsylvania is the first mill site to receive remedial action under the Department of Energy's Uranium Mill Tailings Remedial Action Program. Part of this remedial action will require excavating the 53,500 m/sup 3/ (70,000 yd/sup 3/) of tailings on the site having a specific activity exceeding 100 pCi/g, and encapsulating these contaminated tailings in a clay-lined cell. As part of the remedial action effort, Pacific Northwest Laboratory has been studying … more

Date: April 1, 1984

Creator: Dodson, M.E.; Gee, G.W. & Serne, R.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Decommissioning of commercial shallow-land burial sites

Estimated costs and safety considerations for decommissioning LLW burial grounds have been evaluated. Calculations are based on a generic burial ground assumed to be located at a western and an eastern site. Decommissioning modes include: (1) site stabilization followed by long-term care of the site; and (2) waste relocation. Site stabilization is estimated to cost from $0.4 million to $7.5 million, depending on the site and the stabilization option chosen. Long-term care is estimated to cost a… more

Date: January 1, 1979

Creator: Murphy, E. S. & Holter, G. M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Evaluation of proposed designs for streamflow monitoring structures at waste disposal sites

Design of small surface water monitoring stations associated with waste sites requires an approach that balances several problems. The monitoring site must have a capacity for a wide range of flows, allow accurate measurements over the full performance range, minimize effects from accumulation of contaminated sediments, and minimize costs of construction and operation. Selecting a station design that takes these factors into consideration can be done systematically through use of formal decisio… more

Date: January 1, 1991

Creator: Clapp, R. B.; Borders, D. M.; Tardiff, M. F. & Huff, D. D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Role of groundwater oxidation potential and radiolysis on waste glass performance in crystalline repository environments

Laboratory experiments have shown that groundwater conditions in a Stripa granite repository will be as reducing as those in a basalt repository. The final oxidation potential (Eh) at 70/sup 0/C for Stripa groundwater deaerated and equilibrated with crystalline granite was -0.45V. In contrast, the oxidation potential at 60/sup 0/C for Grande Ronde groundwater equilibrated with basalt was -0.40V. The reducing groundwater conditions were found to slightly decrease the time-dependent release of so… more

Date: January 1, 1985

Creator: Jantzen, Carol M. & Bibler, Ned E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Niagara Falls Storage Site, Lewiston, New York: Annual site environmental report, Calendar year 1987: Formerly Utilized Sites Remedial Action Program (FUSRAP)

The monitoring program at the Niagara Falls Storage Site (NFSS) measures radon gas concentrations in air; external gamma radiation levels; and uranium and radium concentrations in surface water, groundwater, and sediment. To verify that the site is in compliance with the DOE radiation protection standard and to assess its potential effect on public health, the radiation dose was calculated for the maximally exposed individual. Based on the conservative scenario described in the report, this ind… more

Date: April 1, 1988

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Proceedings of the Fifth Annual Participants' Information Meeting: DOE Low-Level Waste Management Program

The meeting consisted of the following six sessions: (1) plenary session I; (2) disposal technology; (3) characteristics and treatment of low-level waste; (4) environmental aspects and performance prediction; (5) overall summary sessions; and (6) plenary session II. Fifty two papers of the papers presented were processed for inclusion in the Energy Data Base. (ATT)

Date: December 1, 1983

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Radiolytic Effects on Ion Exchangers During the Storage of Radioactive Wastes

Radiolytic effects on ion exchangers are being recognized as a significant problem in the processing and storage of high-specific-activity radioactive waste forms. Two major literature surveys and a series of scoping experiments conducted during this investigation indicate that radiation decomposition of ion exchange materials has the potential for a variety of undesirable consequences. These include the ready dispersion of adsorbed radionuclides to the environment, corrosion and pressurization… more

Date: January 1, 1982

Creator: Pillay, K. K. S. & Palau, G. L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Source-term development for commercial low-level radioactive waste

Generic source terms base don historical data have been developed for commerical low-level radioactive waste (LLRW) from fuel-cycle and non-fuel-cycle facilities. These source terms are used in DOE's Integrated Data Base (IDB) Program to estimate historical and projected volumes, radioactivity, and thermal power (from radioactive decay) of LLRW to the year 2020. Periodically, the source terms are updated as new waste is generated and as information on older waste is reviewed, redefined, and upg… more

Date: January 1, 1986

Creator: Godbee, H. W.; Kibbey, A. H.; Forsberg, C. W.; Storch, S. N. & Clower, T. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The product consistency test for the DWPF wasteform

The preliminary specifications on the glass wasteform to be produced by the Defense Waste Processing Facility (DWPF) require extensive characterization of the glass product both before actual production begins and then during production. To aid in this characterization, a leach test was needed that was easily reproducible, could be performed remotely on highly radioactive samples, and could yield results rapidly. Several standard leach tests were examined with a variety of test configurations. … more

Date: January 1, 1990

Creator: Jantzen, Carol M. & Bibler, N. E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Weldon Spring quarry construction staging area and water treatment plant site remedial action characterization report for the Weldon Spring Site Remedial Action Project, Weldon Spring, Missouri

The quarry construction staging area (QCSA) and water treatment plant (WTP) are located in the areas that border the western edge of the Weldon Spring quarry (WSQ). These facilities were constructed to support bulk waste removal from the WSQ. This area was contaminated with U-238, Ra-226, and Th-230 and was remediated prior to construction in order to allow release of the area for use without radiological restrictions. This report documents the methods of characterization, the remediation activ… more

Date: September 1, 1991

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Piqua Nuclear Power Facility Radiological Surveillance Program

Results of the annual radiological survey of the retired Piqua Nuclear Facility in Piqua, Ohio are presented in this report. The overall survey did not reveal the existence of any significant changes within the facility. This survey marked the inception of a surface soil sampling program. Analysis of the soil revealed that concentrations of radioactivity are comparable to those found at other locations in Ohio. (DMC)

Date: March 2, 1982

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Waste acid detoxification and reclamation: Phase 1, Project planning and concept development

The objectives of this project are to develop processes for reducing the volume, quantity, and toxicity of metal-bearing waste acids. The primary incentives for implemeting these types of waste minimization processes are regulatory and economic in that they meet requirements in the Resource Conservation and Recovery Act and reduce the cost for treatment, storage, and disposal. Two precipitation processes and a distillation process are being developed to minimize waste from fuel fabrication oper… more

Date: February 1, 1988

Creator: Stewart, T. L. & Brouns, T. M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Calculation of particulate dispersion in a design-basis tornadic storm from the Atomics International Nuclear Material Development Facility, Santa Susana, California

A three-dimensional numerical model is used to calculate ground-level air concentration and deposition (due to precipitation scavenging) after a hypothetical tornado strike at the Atomics International Nuclear Material Development Facility at Santa Susana, California. Plutonium particles less than 20 ..mu..m in diameter are assumed to be lifted into the tornadic storm cell by the vortex. The rotational characteristics of the tornadic storm are embedded within the larger mesoscale flow of the st… more

Date: July 1, 1980

Creator: Pepper, D.W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Characterization of the solid, airborne materials created when UF/sub 6/ reacts with moist air flowing in single-pass mode

A series of experiments has been performed in which UF/sub 6/ was released into flowing air in order to characterize the solid particulate material produced under non-static conditions. In two of the experiments, the aerosol was allowed to stagnate in a static chamber after release and examined further but in the other experiments characterization was done only on material collected a few seconds after release. Transmission electron microscopy and mass measurement by cascaded impactor were used… more

Date: October 1, 1985

Creator: Pickrell, P. W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

1991 Yearly calibration of Pacific Northwest Laboratory's gross gamma-ray borehole geophysical logging system

This report describes the 1991 yearly calibration of a gross gamma-ray geophysical pulse logging system owned by the US Department of Energy (DOE) and operated by the Pacific Northwest Laboratory. The calibration was conducted to permit the continued use of this system for geologic and hydrologic studies associated with remedial investigations at the Hanford Site. Primary calibrations to equivalent uranium units were conducted in DOE borehole model standards that reside on the Hanford Site. The… more

Date: August 1, 1991

Creator: Arthur, R.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Nuclear waste-form risk assessment for US Defense waste at Savannah River Plant. Annual report FY 1981

Savannah River Plant has been supporting the Lawrence Livermore National Laboratory in its present effort to perform risk assessments of alternative waste forms for defense waste. This effort relates to choosing a suitable combination of solid form and geologic medium on the basis of risk of exposure to future generations; therefore, the focus is on post-closure considerations of deep geologic repositories. The waste forms being investigated include borosilicate glass, SYNROC, and others. Geolo… more

Date: December 1, 1981

Creator: Cheung, H.; Edwards, L. L.; Harvey, T. F.; Jackson, D. D. & Revelli, M. A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Environmental surveillance at Los Alamos during 1987

This report describes the environmental surveillance program conducted by Los Alamos National Laboratory during 1987. Routine monitoring for radiation and radioactive or chemical materials is conducted on the Laboratory site as well as in the surrounding region. Monitoring results are used to determine compliance with appropriate standards and to permit early identification of potentially undesirable trends. Results and interpretation of data for 1987 cover: external penetrating radiation; quan… more

Date: May 1, 1988

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Use of transportable storage casks in the nuclear waste management system: Appendices

A study was performed to determine the viability of the use of transportable storage casks (TSCs), and other metal casks that are designed primarily for storage but which might be used to ship their stored contents to DOE on a one-time use basis (referred to in this study as storage only casks, or SOCs), in the combined utility/DOE spent fuel management system. The viability of the use of TSCs and SOCs was assessed in terms of the costs and savings involved in their use, the sensitivity of thes… more

Date: December 1, 1987

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Interim economic and demographic profile, Benton and Franklin Counties, Washington: Working draft

This report is organized into five sections. Section 2 summarizes the methods used to compile and analyze the data presented in the report. It includes a discussion of the Qualilty Assurance context within which the data were collected, analyzed, and stored; a definition of the variables and time period included in the profile; description of the secondary and primary data collection, compilation, and analysis procedures used in preparing the report; and a summary of the database management sys… more

Date: November 1, 1987

Creator: Clark, D.C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Summary of the Phase II, Title I engineering assessment of inactive uranium mill tailings, Lowman Site, Lowman, Idaho

An engineering assessment was performed of the problems resulting from the existence of radioactive uranium sand residues at the Lowman, Idaho site. Services included the preparation of topographic maps, the performance of core drillings and radiometric measurements sufficient to determine areas and volumes of tailings and other radium-contaminated materials, the evaluation of resulting investigation of site hydrology and meteorology, and the evaluation and costing of alternative corrective act… more

Date: December 1, 1977

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Estimating properties of unsaturated fractured formations from injection and falloff tests

A new technique for calculating hydraulic properties of unsaturated fractured formations is proposed as an alternative to the common approach involving steady-state analysis of multi-rate gas injection tests. This method is based on graphical analysis of unsteady-state pressure-time data from an injection-falloff test sequence. Both gas and water injection testing are considered. Flow in a horizontal fracture of limited lateral extent, bounded above and below by an impermeable matrix, and inter… more

Date: December 1, 1987

Creator: Mishra, S.; Bodvarsson, G.S. & Attanayake, M.P.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Immobilization of incinerator ash in a concrete matrix

The ashcrete process will solidfy ash generated by the consolidated Incinerator Facility (CIF) at the Savannah River Plant (SRP). The ashcrete unit produces ashcrete, a stable cement-based wasteform, by remotely adding cement and water and tumbling drums of ash. Ashcrete product homogeneity, temperature rise during setting, and compressive strength were measured and product formulations were developed for several nonradioactive dry ash types. Saturation level and wet and dry ash densities for s… more

Date: January 1, 1988

Creator: Simpson, R S & Charlesworth, D L

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Determination of performance criteria for high-level solidified nuclear waste from the commercial nuclear fuel cycle: a probabilistic safety analysis

To minimize the radiological risk from the operation of a waste management system for the safe disposal of high-level waste, performance characteristics of the solidified waste form must be specified. The minimum waste form characteristics that must be specified are the radionuclide volatilization fraction, airborne particulate dispersion fraction, and the aqueous dissolution characteristics. The results indicate that the pre-emplacement environs are more limiting in establishing the waste form… more

Date: March 30, 1978

Creator: Heckman, R.A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Properties of radioactive wastes and waste containers. Quarterly progress report, April-June 1980

A study was initiated to determine the effect of varying V/S (the ratio of the waste form volume to its surface area) on the leachability of radioisotopes incorported in cement forms. Cesium-137 and strontium-85 mixed with a simulated formulation of waste derived from forced recirculation evaporator bottoms of LWR's were solidified in portland II cement. The V/S ratios of the forms varied from 0.41 to 2.77. The resulting forms were leached using a modified IAEA procedure. Leaching data indicate… more

Date: August 1, 1980

Creator: Morcos, N. & Weiss, A.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department