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Liquid return from gas pressurization of grouted waste

Description: The ability to force pore liquids out of a simulated waste grout matrix using air pressure was measured. Specimens cured under various conditions were placed in a permeameter and subjected to increasing air pressure. The pressure was held constant for 24 hours and then stepped up until either liquid was released or 150 psi was reached. One specimen was taken to 190 psi with no liquid release. Permeability to simulated tank waste was then measured. Compressive strength was measured following the… more
Date: May 1, 1994
Creator: Powell, W. J. & Benny, H. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Pilot-scale verification test for Hanford grout

Description: The Grout Treatment Facility (GTF) at Hanford, Washington will process the low-level fraction of selected double-shell tank (DST) wastes on the Hanford Site, to produce a cementitious waste form. This facility, which is operated by Westinghouse Hanford Company (Westinghouse Hanford), mixes liquid wastes with cementitious materials and pumps the resulting grout slurry into large [5,300 cubic meters (m{sup 3})] concrete vaults. Once in the vault, the grout cures to produce a waste form that immob… more
Date: February 1, 1993
Creator: Bagaasen, L. M. & Powell, W. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Identification of Radioactive Pilot-Plant test requirements

Description: Radioactive Pilot-Plant testing needs and alternatives are evaluated for enhanced Sludge Washing and High and Low-Level Vitrification efforts. Also investigated was instrument and equipment testing needs associated with the vitrification and retrieval process. The scope of this document is to record the existing March 1994 letter report for future use. A structured Kepner-Trego{trademark} decision analysis process was used to assist analysis of the testing needs. This analysis provided various … more
Date: May 8, 1995
Creator: Powell, W. J. & Riebling, E. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternative concepts for treatment and disposal of Hanford site high-level waste in tanks

Description: Some innovative approaches have recently been proposed that may have significant schedule, cost, or environmental advantages which could improve the current HLW program strategy. Three general categories of alternative concepts are now under consideration: (1) process/product alternatives, (2) facility layout options, and (3) contracting strategies. This report compares the alternate approaches to the current program baseline to illustrate their potential significance and to identify the risks … more
Date: December 1, 1994
Creator: Claghorn, R. D. & Powell, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

G3 model of gas and liquid migration from grout containing radioactive waste

Description: Grout has been evaluated as a means of containing low-level radioactive waste for long-term disposal. Concerns about hydrogen and reactive gas generation in the Hanford Site grout disposal facility lead to the development of the G3 model, which has predicted buildup of radiolytically formed gases in the grout region and their migration to air-filled regions. The G3 model is a one-dimensional code that couples models of gas diffusion with two-phase gas and liquid flow. It was coupled to a compar… more
Date: November 1, 1994
Creator: Roblyer, S. P.; Finfrock, S. H. & Powell, W. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Acute toxicity screening of Hanford Site waste grouts using aquatic invertebrates

Description: Waste grouts prepared by mixing a simulated nonradioactive liquid waste with a dry solids blend consisting of cement, fly ash, and clay were screened for their acute toxicity using aquatic invertebrates (D. magna, D. pulex, and C. dubia) as test organisms and a fluorogenic substrate (4-methylumbelliferyl b-d galactoside) as the toxic stress indicator. After one hour of exposing juvenile daphnids to grout extracts of varying concentrations, followed by a 15-minute reaction with the fluorogenic s… more
Date: November 1, 1993
Creator: Rebagay, T. V.; Dodd, D. A.; Lockrem, L. L.; Powell, W. J. & Voogd, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Mustangs and Cow Horses

Description: Collection of popular folklore of Texas and Mexico, including folktales, folk songs, ballads and other information about mustangs and horses. The index begins on page 425.
Date: 2017
Creator: Dobie, J. Frank (James Frank), 1888-1964; Boatright, Mody C. & Ransom, Harry H.
Item Type: Refine your search to only Book
Partner: UNT Press
open access

Preliminary low-level waste feed definition guidance - LLW pretreatment interface

Description: The document describes limits for key constituents in the LLW feed, and the bases for these limits. The potential variability in the stream is then estimated and compared to the limits. Approaches for accomodating uncertainty in feed inventory, processing strategies, and process design (melter and disposal system) are discussed. Finally, regulatory constraints are briefly addressed.
Date: February 1, 1995
Creator: Shade, J. W.; Connor, J. M.; Hendrickson, D. W.; Powell, W. J. & Watrous, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Draft low level waste technical summary

Description: The purpose of this document is to present an outline of the Hanford Site Low-Level Waste (LLW) disposal program, what it has accomplished, what is being done, and where the program is headed. This document may be used to provide background information to personnel new to the LLW management/disposal field and to those individuals needing more information or background on an area in LLW for which they are not familiar. This document should be appropriate for outside groups that may want to learn… more
Date: September 1, 1995
Creator: Powell, W. J.; Benar, C. J.; Certa, P. J.; Eiholzer, C. R.; Kruger, A. A.; Norman, E. C. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mustangs and Cow Horses

Description: Collection of popular folklore of Texas and Mexico, including folktales, folk songs, ballads and other information about mustangs and horses. The index begins on page 425.
Date: 1940
Creator: Dobie, J. Frank (James Frank), 1888-1964; Boatright, Mody C. & Ransom, Harry H.
Item Type: Refine your search to only Book
Partner: UNT Press
open access

Neutralized current acid waste consolidation management plan

Description: The scope of this evaluation is to recommend a management plan for the high-heat tank waste, including neutralized current acid waste (NCAW) in AY and AZ Tank Farms, and tank C-106 waste. The movement of solids, liquids and salt cake in the designated tank farms is included. Decision analysis techniques were used to determine a recommended alternative. The recommended course of action was replacement of a 75-hp mixer pump in tank AY-102 and in-tank concentration of tank AZ-102 supernate. The al… more
Date: January 1996
Creator: Powell, W. J.; Brown, R. G.; Galbraith, J.; Jensen, C.; Place, D. E.; Reddick, G. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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