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in publisher: "Savannah River Lab., Aiken, SC USA"

open access

Root cause analysis at the Savannah River Plant

Events (or near misses) provide important information about ways to improve plant performance. Any particular event may have several /open quotes/root causes/close quotes/ that need correcting to prevent recurrence of the event and, thereby, improve the safety of the plant. Also, by reviewing a large number of events, one can identify cause trends or /open quotes/generic concerns./close quotes/ A method has been developed at Savannah River Plant (SRP) to systematically evaluate events, identify… more

Date: January 1, 1988

Creator: Paradies, M & Busch, D

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Costs of nuclear waste glassmaking at Savannah River

Recently developed reference schedules for processing high-level nuclear wastes into solid glass froms at Savannah River provide bases for economic evaluations of potential improvements of glass melter design and operation. Greater melter output is achieved through increases in capacity and attainment and possible higher glass waste loadings. The economic evaluation indicates only minor beneficial impacts on total waste disposal costs for melter outputs greater than current reference values. In… more

Date: January 1, 1988

Creator: McDonell, W R; Thomas, S D & Goodlett, C B

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Test methods for selection of materials of construction for high-level radioactive waste vitrification. Revision

Candidate materials of construction were evaluated for a facility at the Department of Energy's Savannah River Plant to vitrify high-level radioactive waste. Limited operating experience was available under the corrosive conditions of the complex vitrification process. The objective of the testing program was to provide a high degree of assurance that equipment will meet or exceed design lifetimes. To meet this objective in reasonable time and minimum cost, a program was designed consistin… more

Date: January 1, 1986

Creator: Bickford, D F; Corbett, R A & Morrison, W S

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

High temperature materials for radioactive waste incineration and vitrification. Revision 1

Incineration or vitrification of radioactive waste subjects equipment to alkaline or acidic fluxing, oxidation, sulfidation, carburization, and thermal shock. It is necessary to select appropriate materials of construction and control operating conditions to avoid rapid equipment failure. Nickel- and cobalt-based alloys with high chromium or aluminum content and aluminum oxide/chromium oxide refractories with high chromium oxide content have provided the best service in pilot-scale melter tests… more

Date: January 1, 1986

Creator: Bickford, D F; Ondrejcin, R S & Salley, L

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Extrusion strains produced in cast and in powder aluminum billets

A full-field solution for strains produced during axisymmetric extrusion may be obtained through a study of laminar flowlines which are produced as the material flows through the die. A flow function is mathematically constructed, using the flowlines, to determine the material flow rate along the given path. Velocities and strain-rates are determined along the flowlines. Flowline curves are determined experimentally from the stamped rectangular grid which was originally placed on an axial plane… more

Date: January 1, 1986

Creator: Peacock, H B & Berghaus, D G

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

High level waste vitrification at the SRP (Savannah River Plant) (DWPF (Defense Waste Processing Facility) summary)

The Savannah River Plant has been operating a nuclear fuel cycle since the early 1950's. Fuel and target elements are fabricated and irradiated to produce nuclear materials. After removal from the reactors, the fuel elements are processed to extract the products, and waste is stored. During the thirty years of operation including evaporation, about 30 million gallons of high level radioactive waste has accumulated. The Defense Waste Processing Facility (DWPF) under construction at Savannah… more

Date: January 1, 1988

Creator: Weisman, A F; Knight, J R; McIntosh, D L & Papouchado, L M

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Wetlands proximity mapping of 86 waste sites on the Savannah River Plant

This project developed wetlands proximity maps and provided wetlands information by means of a Geographic Environmental Data Base (GEDB) for each of 11 interaction zones identified in DPST-84-684. It includes an analysis of 86 hazardous waste sites at the Savannah River Plant (SRP). The map of each interaction zone is intended to indicate major wetland and land cover types, with emphasis on locations of hazardous waste sites with wetland areas identified within a 1000 meter radius. Statistics o… more

Date: September 16, 1985

Creator: Jensen, J.R. (South Carolina Univ., Columbia, SC (USA). Dept. of Geography)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Three-dimensional simulation of groundwater flow and transport of chemical and low-level radioactive constituents within two production areas of the Savannah River Plant

Modeling of transport in the environmental media was performed. Predicting the future performance of any waste site or facility and postulated actions in terms of migration of potential hazardous materials requires mathematical models capable of simulating flow and transport in the groundwater. Three-dimensional groundwater flow and transport models were developed to simulate the groundwater movement and contaminant transport in the Raw Materials Fabrication Area and the Separations Area. The o… more

Date: January 1, 1987

Creator: Stephenson, D. E.; Looney, B. B.; Andrews, C. B. & Buss, D. R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Sediment transport studies in Tims Branch. [Drained after spillway collapse]

In 1984, the spillway of Steed Pond fed by Tims Branch collapsed and the pond slowly drained. Consideration was given to leaving the pond dry, but concern was expressed that the uranium accumulated in the sediments from the 300 Area discharges to Tims Branch might be eroded and transported to Upper Three Runs Creek. This study shows that the measured amount of sediment transported to Upper Three Runs Creek from Tims Branch No. 5, about two miles below Steed Pond, was about the same as in past y… more

Date: June 23, 1986

Creator: Hayes, D.W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Steel Creek fish: L-Lake/Steel Creek Biological Monitoring Program, January 1986--December 1987

Fish samples were collected from Steel Creek during 1986 and 1987 following the impoundment of the headwaters of the stream to form L-Lake, a cooling reservoir for L-Reactor which began operating late in 1985. Electrofishing and ichthyoplankton sample stations were located throughout the creek. Fykenetting sample stations were located in the creek mouth and just above the Steel Creek swamp. Larval fish and fish eggs were collected with 0.5 m plankton nets. Multivariate analysis of the electrofi… more

Date: March 1, 1988

Creator: Paller, M.H.; Heuer, J.H. & Kissick, L.A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Wetlands mapping with spot multispectral scanner data

Government facilities such as the US Department of Energy's Savannah River Plant (SRP) near Aiken, South Carolina, often use remote sensing data to assist in environmental management. Airborne multispectral scanner (MSS) data have been acquired at SRP since 1981. Various types of remote sensing data have been used to map and characterize wetlands. Regional Landsat MSS and TM satellite data have been used for wetlands mapping by various government agencies and private organizations. Furthermore,… more

Date: January 1, 1989

Creator: Mackey, H.E. Jr. (Savannah River Lab., Aiken, SC (USA)) & Jensen, J.R. (South Carolina Univ., Columbia, SC (USA). Dept. of Geography)

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

US team measurements during the June 1987 experimental HT release at the Chalk River Nuclear Laboratories, Ontario, Canada

In June 1987, an experiment was performed at the Chalk River Nuclear Laboratories in Ontario, Canada, to study the oxidation of HT in the environment. The experiment involved a 30-minute release of 100 Ci of HT to the atmosphere at an elevation of one meter. The HTOHT ratios were shown to slowly increase downwind (/approximately/4 /times/ 10/sup /minus/5/ at 50 meters to almost 10/sup /minus/3 at 400 meters) as conversion of HT takes place. For several days after the release, HTO concentrations… more

Date: January 1, 1988

Creator: Jalbert, R. A. & Murphy, C. E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

GPHS (General Purpose Heat Source) uranium oxide encapsulations supporting satellite safety tests

General Purpose Heat Source (GPHS) simulant-fueled capsules were assembled, welded, nondestructively examined, and shipped to Los Alamos National Laboratory (LANL) for satellite safety tests. Simulant-fueled iridium capsules contain depleted uranium oxide pellets that serve as a stand-in for plutonium-238 oxide pellets. Information on forty seven capsules prepared during 1987 and 1988 is recorded in this memorandum along with a description of the processes used for encapsulation and evaluation.… more

Date: April 24, 1989

Creator: Kanne, W. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Online fiber optic spectrophotometry

A fiber optic diode array process analyzer has been developed and installed in a radiochemical separations facility at the Savannah River Plant. The analyzer monitors the uranium and nitrate concentration of seven aqueous process streams in a uranium purification process. The analyzer remotely controls the sampling of each process stream and monitors the relative flow rate through each sampler. Spectrophotometric data from the analyzer is processed by multivariate data analysis to give both ura… more

Date: January 1, 1988

Creator: Van Hare, D. R.; O'Rourke, P. E. & Prather, W. S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

TRU (transuranic) waste certification at the Savannah River Plant

The Waste Certification Facility (WCF) at the Savannah River Plant (SRP) assesses transuranic (TRU) waste in 55-gal drums by x-ray and neutron interrogation prior to shipment to the Waste Isolation Pilot Plant (WIPP) in New Mexico. The facility, equipment, and operation are described. Results of a Probabilistic Risk Assessment (PRA) show that the facility can be operated without undue risk to plant personnel, the public, and the environment. 4 figs.

Date: January 1, 1988

Creator: Legler, B M

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

A differential thermal analysis study of the effect of tramp impurities on the exothermic U sub 3 O sub 8 -Al reactions

Differential thermal analysis (DTA) has been used to study the effect of impurities on aluminothermic reactions between commercial type 101 aluminum powder and U{sub 3}O{sub 8} powder. No measurable effect (solid state reactions) was found below 660{degrees}C during differential thermal analysis studies of (1) loose blended powders, (2) blended and compressed powders, (3) blended, heated, and compressed powders, or (4) blended, compressed, and heated compacts containing less than 50,000 ppM imp… more

Date: December 1, 1989

Creator: Gray, L.W. (Lawrence Livermore National Lab., CA (USA)) & Peacock, H.B. (Savannah River Lab., Aiken, SC (USA))

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Analysis of residual organic materials in aqueous radioactive streams from the Purex process

New solid phase extraction methods have been developed to allow determination of residual normal paraffin hydrocarbon (NPH) and tri-n-butyl phosphate (TBP) in aqueous radioactive streams from the Purex process. The techniques concentrate organic materials and separate them from radioactive species for analysis by gas chromatography. TBP and NPH have good radiolytic and chemical stability and have low aqueous solubility. However, they can contaminate aqueous streams and cause processing difficul… more

Date: May 1, 1987

Creator: Shook, H.E. Jr.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

A computer model of gas generation and transport within TRU waste drums

A computer model has been developed to predict radiolytic gas generation and transport within Transuranic (TRU) waste drums and surrounding enclosures. Gas generation from the radiolytic decomposition of organic material contaminated with plutonium is modeled and the concentrations of gas throughout the waste drum and enclosures are determined using a diffusional transport model. The model accurately reproduces experimentally measured gas concentrations. With polyethylene waste in unvented drum… more

Date: June 1, 1988

Creator: Smith, F. G., III

Item Type: Report

Partner: UNT Libraries Government Documents Department