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Evaluation of liners for a uranium-mill tailings disposal site: a status report

Description: The United States Department of Energy is conducting a program designed to reclaim or stabilize inactive uranium-mill tailings sites. This report presents the status of the Liner Evaluation Program. The purpose of the study was to identify eight prospective lining materials or composites for laboratory testing. The evaluation was performed by 1) reviewing proposed regulatory requirements to define the material performance criteria; 2) reviewing published literature and communicating with indust… more
Date: May 1, 1981
Creator: Buelt, J. L.; Hale, V. Q.; Barnes, S. M. & Silviera, D. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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In situ grouting of buried transuranic waste with polyacrylamide

Description: This project is a demonstration and evaluation of the in situ hydrologic stabilization of buried transuranic waste at a humid site via grout injection. Two small trenches, containing buried transuranic waste, were filled with 34.000 L of polyacrylamide grout. Initial field results have indicated that voids within the trenches were totally filled by the grout and that the intratrench hydraulic conductivity was reduced to below field-measurable values. No evidence of grout constituents were obser… more
Date: January 1, 1987
Creator: Spalding, B. P.; Lee, S. Y.; Farmer, C. D.; Hyder, L. K. & Supaokit, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Field Demonstration of in Situ Grouting of Radioactive Solid Waste Burial Trenches With Polyacrylamide. [Polyacrylamide]

Description: Demonstrations of in situ grouting with polyacrylamide were carried out on two undisturbed burial trenches and one dynamically compacted burial trench in Solid Waste Storage Area (SWSA) 6 at Oak Ridge National Laboratory (ORNL). The injection of polyacrylamide was achieved quite facilely for the two undisturbed burial trenches which were filled with grout, at typical pumping rates of 95 L/min, in several batches injected over several days. The compacted burial trench, however, failed to accept … more
Date: January 1, 1990
Creator: Spalding, B. P. & Fontaine, T. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Preliminary decommissioning study reports

Description: The Old Hydrofracture Facility (OHF) is one of approximately 76 facilities currently managed by the Oak Ridge National Laboratory (ORNL) Surplus Facilities Management Program (SFMP). This program, as part of the Department of Energy (DOE) national SFMP, is responsible for the maintenance and surveillance and the final decommissioning of radioactively contaminated surplus ORNL facilities. A long-range planning effort is being conducted that will outline the scope and objectives of the ORNL progr… more
Date: September 1, 1984
Creator: Reed, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of waste treatment technologies by LLWDDD (Low-Level Waste Disposal Development and Demonstration) Programs

Description: Waste treatments are divided into four categories: (1) volume reduction; (2) conditioning to improve waste form performance; (3) segregation to achieve waste reduction; and (4) separation to remove radioactive (or hazardous) constituents. Two waste treatment demonstrations are described. In the first, volume reduction by mechanical means was achieved during the supercompaction of 300 55-gal drums of solid waste at ORNL. In the second demonstration, conditioning of waste through immobilization a… more
Date: January 1, 1987
Creator: Kennerly, J.M.; Williams, L.C.; Dole, L.R. & Genung, R.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Systematic approach for the design of pumpable cement-based grouts for immobilization of hazardous wastes

Description: Cement-based grouts have been proven to be an economical and environmentally acceptable means of waste disposal. Costs can be reduced if the grout is pumped to the disposal site. This paper presents a systematic approach to guide the development of pumpable grouts. 20 refs., 2 figs.
Date: January 1, 1987
Creator: Sams, T. L. & Gilliam, T. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Rheological characterization of cementitious grouts used to dispose of intermediate-level radioactive waste by hydrofracturing at Oak Ridge National Laboratory

Description: The hydrofracturing process is a waste disposal process in use at the Oak Ridge National Laboratory for the permanent disposal of locally generated waste solutions. This process is now being modified for use in the disposal of sludge that results from the sodium hydroxide neutralization of acid waste solutions. In this process, the sludges will be slurried in a bentonite clay suspension and mixed with a solids blend of cement and other additives. The amount of dry solids required for each liter… more
Date: January 1, 1981
Creator: McDaniel, E.W. & Moore, J.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ORNL grouting technologies for immobilizing hazardous wastes

Description: The Cement and Concrete Applications Group at the Oak Ridge National Laboratory (ORNL) has developed versatile and inexpensive processes to solidify large quantities of hazardous liquids, sludges, and solids. By using standard off the shelf processing equipment, these batch or continuous processes are compatible with a wide range of disposal methods, such as above-ground storage, shallow-land burial, deep geological disposal, sea-bed dumping, and bulk in-situ solidification. Because of their ec… more
Date: January 1, 1983
Creator: Dole, L.R. & Trauger, D.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Testing protocols for evaluating monolithic waste forms containing mixed wastes

Description: Test protocols have been presented which can be used as a guide in cement-based grout formulation development studies. Based on experience at ORNL, these six tests are generally sufficient to develop a grout product which will meet all applicable DOE, NRC, and EPA performance criteria. As such, these tests can be used to minimize the time required to tailor a grout to be compatible with both the waste stream and the process disposal scenario. 9 refs.
Date: January 1, 1986
Creator: Gilliam, T. M.; Sams, T. L. & Pitt, W. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Field study plan for alternate barriers

Description: Pacific Northwest Laboratory (PNL) is providing technical assistance in selecting, designing, evaluating, and demonstrating protective barriers. As part of this technical assistance effort, asphalt, clay, and chemical grout will be evaluated for use as alternate barriers. The purpose of the subsurface layer is to reduce the likelihood that extreme events (i.e., 100-year maximum storms, etc.) will cause significant drainage through the barrier. The tests on alternate barriers will include labora… more
Date: May 1, 1989
Creator: Freeman, H. D.; Gee, G. W. & Relyea, J. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Solubility of krypton in hydrofracture grout at elevated pressures

Description: The solubilities of krypton in water, simulated waste solution, and simulated grout at about 25/sup 0/C and to pressures of 150 atm have been determined. The results of these studies show that preliminary calculations of krypton solubility based on the aqueous component of the hydrofracture grout were overly pessimistic. The volume of noble gas generated annually by the reference reprocessing plant would be soluble in the annual hydrofracture grout injection at ORNL at about 10 atm. The amount … more
Date: January 1, 1982
Creator: Fitzgerald, C. L. & Mailen, J. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Test Area for Remedial Actions (TARA) site characterization and dynamic compaction of low-level radioactive waste trenches

Description: As part of a low-level radioactive waste burial ground stabilization and closure technology demonstration project, a group of five burial trenches in Oak Ridge National Laboratory (ORNL) Solid Waste Storage Area (SWSA) 6 was selected as a demonstration site for testing trench compaction, trench grouting, and trench cap installation and performance. This report focuses on site characterization, trench compaction, and grout-trench leachate compatibility. Trench grouting and cap design and constru… more
Date: January 1, 1989
Creator: Davis, E. C.; Spalding, B. P.; Lee, S. Y. & Hyder, L. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Shallow Land Burial Technology - Humid

Description: The Shallow Land Burial Technology - Humid Project is being conducted for the Department of Energy Low-Level Waste Management Program with the objective of identifying and demonstrating improved technology for disposing of low-level solid waste in humid environments. Two improved disposal techniques are currently being evaluated using nine demonstration trenches at the Engineered Test Facility (ETF). The first is use of a cement-bentonite grout applied as a waste backfill material prior to tren… more
Date: January 1, 1983
Creator: Davis, E. C.; Spalding, B. P. & Lee, S. Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

In situ grouting of low-level burial trenches with a cement-based grout

Description: A restoration technology being evaluated for use in the closure of one of the low-level radwaste burial grounds at Oak Ridge National Laboratory (ORNL) is trench stabilization using a cement-based grout. To demonstrate the applicability and effectiveness of this technology, two interconnecting trenches in Solid Waste Storage Area 6 (SWSA 6) were selected as candidates for in situ grouting with a particulate grout. The primary objective was to demonstrate the increased trench stability and decre… more
Date: January 1, 1991
Creator: Francis, C. W. & Spalding, B. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Shallow land burial technology: humid

Description: Applying engineered modifications to present shallow land burial (SLB) practices is one method of ensuring safe operation and improving overall disposal-site performance. Two such engineered modifications, trench lining and grouting, are being demonstrated and evaluated at the Oak Ridge National Laboratory (ORNL) Engineered Test Facility (ETF), using nine 28-m/sup 3/ experimental trenches containing compacted low-level waste (LLW). Concurrent to this field demonstration experiment, two finite-e… more
Date: January 1, 1984
Creator: Davis, E. C. & Yeh, G. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Examinations of samples of Bell Canyon Test 1-FF grout

Description: Portland cement grout identified as BCT-1-FF (Bell Canyon Test 1-FF) was used in borehole plugging experiments of the Bell Canyon Tests in Holl AEC-7 at the Waste Isolation Pilot Plant site in New Mexico during September 1979 and February 1980. This grout was made with fresh water. A study of this grout was begun in August 1979 in the laboratory to evauate the possible effects of temperature, pressure, and storage in fresh water or simulated groundwater (brine) on its phase composition and comp… more
Date: May 1, 1981
Creator: Rhoderick, J. E.; Wong, G. S. & Buck, A. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear Waste Materials Characterization Center. Semiannual progress report, April 1985-September 1985

Description: Work continued on converting MCC Quality Assurance practices to comply with the national QA standard for nuclear facilities, ANSI/ASME NQA-1. Support was provided to the following: Office of Geologic Repositories; Salt Repository Project; Basalt Waste Isolation Project; Office of Defense Waste and Byproducts Management; Hanford Programs; Transportation Technology Center; and West Valley Demonstration Project. (LM)
Date: December 1, 1985
Creator: Mendel, J.E. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Independent engineering review of the Hanford Waste Vitrification System

Description: The Hanford Waste Vitrification Plant (HWVP) was initiated in June 1987. The HWVP is an essential element of the plan to end present interim storage practices for defense wastes and to provide for permanent disposal. The project start was justified, in part, on efficient technology and design information transfer from the prototype Defense Waste Processing Facility (DWPF). Development of other serial Hanford Waste Vitrification System (HWVS) elements, such as the waste retrieval system for the … more
Date: October 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Borehole Plugging Program. Plugging of ERDA No. 10 drill hole

Description: A requirement exists to plug exploratory drill holes located in the proposed Waste Isolation Pilot Plant area of Southeastern New Mexico. Sandia Laboratories, in cooperation with the US Army Corps of Engineers, Waterways Experiment Station, Concrete Laboratory, developed pumpable and durable cement grouts. These grouts were successfully used to plug an existing drill hole in the area. Results of this project are presented, along with comments and conclusions.
Date: June 1, 1979
Creator: Gulick, C.W. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Immobilization of technetium and nitrate in cement-based materials

Description: The leachabilities of technetium and nitrate wastes immobilized in cement-based grouts have been investigated. Factors found to affect the leachabilities include grout mix ratio, grout fluid density, dry solid blend composition, and waste concentration. 10 refs., 7 figs., 3 tabs.
Date: January 1, 1987
Creator: Tallent, O.K.; McDaniel, E.W.; Del Cul, G.D.; Dodson, K.E. & Trotter, D.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effects of carbon dioxide attack on geothermal cement grouts

Description: Studies of carbonation of geotheirmal grouts have shown that the physical criteria recommended by the American Petroleum Institute do not apply for durability in CO/sub 2/-containing fluids. The high silica binders, normally considered desirable because of their high strengths and low permeability, become permeable when carbonated. This allows further attack on the grout, and if the fluids are undersaturated with CaCO/sub 3/, then rapid corrosion will occur. On the other hand, grouts which cont… more
Date: March 1, 1986
Creator: Milestone, N. B.; Kukacka, L. E. & Carciello, N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Corrective measures technology for humid sites

Description: The corrective measures technology task for humid sites consists of three subtasks. The first subtask has the objective of demonstrating that grout injection into closed burial trenches can achieve the hydrologic isolation of buried wastes. From laboratory testing of seven grout formulations, two promising grouts, 7.6% sodium silicate and 11.7% acrylamide, were selected for field demonstration by injection into 1:10-scale burial trenches. Both grouts effected a several orders of magnitude reduc… more
Date: January 1, 1983
Creator: Spalding, B. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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