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High-Level Waste Glass Formulation Model Sensitivity Study 2009 Glass Formulation Model Versus 1996 Glass Formulation Model

Description: This document presents the differences between two HLW glass formulation models (GFM): The 1996 GFM and 2009 GFM. A glass formulation model is a collection of glass property correlations and associated limits, as well as model validity and solubility constraints; it uses the pretreated HLW feed composition to predict the amount and composition of glass forming additives necessary to produce acceptable HLW glass. The 2009 GFM presented in this report was constructed as a nonlinear optimization c… more
Date: December 7, 2009
Creator: Belsher, J. D. & Meinert, F. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Modern Interpretation of the Barney Diagram for Aluminum Solubility in Tank Waste

Description: Experimental and modeling studies of aluminum solubility in Hanford tank waste have been developed and refined for many years in efforts to resolve new issues or develop waste treatment flowsheets. The earliest of these studies was conducted by G. Scott Barney, who performed solubility studies in highly concentrated electrolyte solutions to support evaporator campaign flowsheets in the 1970's. The 'Barney Diagram', a term still widely used at Hanford today, suggested gibbsite ({gamma}-Al(OH){su… more
Date: December 16, 2009
Creator: Reynolds, J. G. & Reynolds, D. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

SLUDGE CHARACTERIZATION AND SRAT SIMULATIONS USING A NITRITE-FREE SLUDGE SIMULANT

Description: Understanding catalytic hydrogen generation is fundamental to the safe operation of the Defense Waste Processing Facility (DWPF) Chemical Process Cell (CPC). Two Sludge Receipt and Adjustment Tank (SRAT) simulations were completed at the Aiken County Technology Laboratory (ACTL) of the Savannah River National Laboratory (SRNL) using a nitrite-free starting simulant. One simulation was trimmed with Rh and Hg and the other with Ru and Hg. The two noble metals were trimmed at the upper end of the … more
Date: December 17, 2009
Creator: Koopman, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

EM-21 ALTERNATIVE ENHANCED CHEMICAL CLEANING PROGRAM FOR SLUDGE HEEL REMOVAL

Description: Preliminary studies in the EM-21 Alternative Chemical Cleaning Program have focused on understanding the dissolution of Hematite (a primary sludge heel phase) in oxalic acid, with a focus on minimizing oxalic acid usage. Literature reviews, thermodynamic modeling, and experimental results have all confirmed that pH control, preferably using a supplemental proton source, is critical to oxalate minimization. With pH control, iron concentrations as high as 0.103 M have been obtained in 0.11 M oxal… more
Date: December 18, 2009
Creator: Hay, M.; King, W. & Martino, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Design and Implementation of Energized Fracture Treatment in Tight Gas Sands

Description: Hydraulic fracturing is essential for producing gas and oil at an economic rate from low permeability sands. Most fracturing treatments use water and polymers with a gelling agent as a fracturing fluid. The water is held in the small pore spaces by capillary pressure and is not recovered when drawdown pressures are low. The un-recovered water leaves a water saturated zone around the fracture face that stops the flow of gas into the fracture. This is a particularly acute problem in low permeabil… more
Date: December 31, 2009
Creator: Sharma, Mukul & Friehauf, Kyle
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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