ProgramMaster Logo
Conference Tools for Materials Science & Technology 2019
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting Materials Science & Technology 2019
Symposium Materials Issues in Nuclear Waste Management
Presentation Title The Influence of Reducing Conditions on the Stabilization of Iodine Containing Solid Secondary Wastes
Author(s) Matthew Asmussen, Sarah Saslow, James Neeway, Joseph Westsik, Gary L. Smith
On-Site Speaker (Planned) Matthew Asmussen
Abstract Scope During vitrification activities at WTP at the U.S. DOE’s Hanford site many classes of solid secondary wastes (SSW) will be generated. The radioisotope iodine-129 will be present on several SSW streams including silver mordenite (AgZ) and granular activated carbon (GAC). The baseline disposal pathway for these two non-debris waste streams is stabilization/blending into a cementitious waste form and disposed of in shallow subsurface disposal at Hanford. The formulation to be used for the final waste form for these two streams has yet to be identified and little data exists on representative waste form systems. Both reduced (containing blast furnace slag) and oxidized (no slag) are candidates for use to stabilize the AgZ and GAC. This presentation will cover characterization of candidate formulations, their ability to stabilize AgZ and GAC and the leachability of iodine from stabilized AgZ and GAC.


Aerogels with Enhanced Gas Permeability and Mechanical Strength for use as Membranes in Radioiodine Capture
Dechlorination Methods and Ceramic Waste Forms for the Immobilization of Electrorefiner Salt
Disorder and Mass Transport in Model Waste Forms
Effect of Solution Chemistry on the Release Mechanism of Iodine from Iodoapatite Waste Form in Aqueous Environments
Electrical Properties of Nuclear Glasses
Energetics and Structure of Uranium-incorporated Iron Oxides
Impact of Redox on Crystallization Behavior of Spinel Crystals in HLW Borosilicate Glasses
Investigations into Physical and Chemical Characteristics of Nuclear Waste Glass Alteration Layers
Melt-Cast Ceramic Waste Forms: Laboratory Development and Scaled Demonstrations
Modeling of Carbonation Effects in a Cementitious Waste Form under Dry Environmental Conditions
Observations of Crystal Settling Behavior in a Full-Scale HLW Melter Mock-Up
Optimization of Frit Composition for Coupled Operation of the Defense Waste Processing Facility and Salt Waste Processing Facility at the Savannah River Site
P3-69: Corrosion Test Method Evaluation for Iodine Waste Forms
P3-70: Glass Pool Flow in a Joule-Heated, Laboratory-Scale Melter
P3-71: Multi-scale Structural Response of Pyrochlore Oxides to Swift Heavy Ion Irradiation
Predicting the Density of High-Level Waste Glass Compositions
The Influence of Reducing Conditions on the Stabilization of Iodine Containing Solid Secondary Wastes
The Relationship between Zeolite Type and Glass Dissolution Rate Resumption
Thermodynamics of Zeolite Precipitation in Stage III Glass Corrosion

Questions about ProgramMaster? Contact