scholarly journals DURABILITY TESTING OF FLUIDIZED BED STEAM REFORMER WASTE FORMS FOR SODIUM BEARING WASTE AT IDAHO NATIONAL LABORATORY

2007 ◽  
Author(s):  
C Crawford ◽  
C Carol Jantzen
Keyword(s):  
Fluidized Bed ◽  
National Laboratory ◽  
Steam Reformer ◽  
Idaho National Laboratory ◽  
Waste Forms ◽  
Durability Testing

Fluidized Bed Steam Reformed (FBSR) Mineral Waste Forms: Characterization and Durability Testing

2006 ◽  
Vol 985 ◽  
Author(s):  
Carol Jantzen ◽  
Troy H. Lorier ◽  
John M. Pareizs ◽  
James C. Marra
Keyword(s):  
Fluidized Bed ◽  
Environmental Protection Agency ◽  
National Laboratory ◽  
Pilot Scale ◽  
Waste Form ◽  
High Sodium ◽  
Waste Forms ◽  
Ring Structures ◽  
Low Activity ◽  
Mineral Waste

AbstractFluidized Bed Steam Reforming (FBSR) is being considered as a potential technology for the immobilization of a wide variety of high sodium low activity wastes (LAW) such as those existing at the Hanford site, at the Idaho National Laboratory (INL), and the Savannah River Site (SRS). The addition of clay, charcoal, and a catalyst as co-reactants with the waste denitrates the aqueous wastes and forms a granular mineral waste form that can subsequently be made into a monolith for disposal if necessary. The waste form produced is a multiphase mineral assemblage of Na-Al-Si (NAS) feldspathoid minerals with cage and ring structures and iron bearing spinel minerals. The mineralization occurs at moderate temperatures between 650-750°C in the presence of superheated steam. The cage and ring structured feldspathoid minerals atomically bond radionuclides like Tc-99 and Cs-137 and anions such as SO4, I, F, and Cl. The spinel minerals stabilize Resource Conservation and Recovery Act (RCRA) hazardous species such as Cr and Ni. Granular mineral waste forms were made from (1) a basic Hanford Envelope A low-activity waste (LAW) simulant and (2) an acidic INL simulant commonly referred to as sodium-bearing waste (SBW) in pilot scale facilities at the Science Applications International Corporation (SAIC) Science and Technology Applications Research (STAR) facility in Idaho Falls, ID. The FBSR waste forms were characterized and the durability tested via ASTM C1285 (Product Consistency Test), the Environmental Protection Agency (EPA) Toxic Characteristic Leaching Procedure (TCLP), and the Single Pass Flow Through (SPFT) test. The results of the SPFT testing and the activation energies for dissolution are discussed in this study.

Development of a Continuous CVD Process for TRISO Coating of AGR Fuel

2008 ◽  
Author(s):  
Joseph T. Keeley ◽  
Bruce L. Tomlin ◽  
W. Clay Richardson ◽  
Charles Barnes ◽  
Douglas Marshall
Keyword(s):  
Chemical Vapor Deposition ◽  
Fluidized Bed ◽  
Vapor Deposition ◽  
National Laboratory ◽  
Chemical Vapor ◽  
Deposition Process ◽  
Coating Process ◽  
Furnace Design ◽  
Idaho National Laboratory ◽  
Test Reactor

As part of the Department of Energy’s Advanced Gas Reactor Fuel program, Babcock & Wilcox is developing a fluidized bed chemical vapor deposition process to deposit a TRISO coating on UCO and UO2 kernels. These coated kernels will go into irradiation tests in the Advanced Test Reactor at Idaho National Laboratory. This paper reports on the development activities including the furnace design and the furnace runs made to qualify the coating process.

Remote Sealing of Canisters for Hot Isostatic Pressing

2014 ◽  
Author(s):  
Dennis Wahlquist ◽  
Ken Bateman ◽  
Tim Malewitz
Keyword(s):  
Stainless Steel ◽  
National Laboratory ◽  
Hot Isostatic Pressing ◽  
Welding Process ◽  
Isostatic Pressing ◽  
Idaho National Laboratory ◽  
Waste Forms ◽  
Weld Inspection ◽  
The Cost ◽  
Remote Welding

Battelle Energy Alliance, LLC, has successfully tested a remote welding process to seal radioactive waste containers prior to hot isostatic pressing (HIP). Since the 1990s, a variety of radioactive and hazardous waste forms have been remotely treated using HIP during trials within Idaho National Laboratory (INL) hot cells. For HIP treatment at INL, waste was loaded into a stainless-steel or aluminum canister, which was evacuated, seal welded, and placed in a HIP furnace. HIP simultaneously heats and pressurizes the waste, reducing its volume and increasing its stability, thus lowering the cost and risk associated with disposal. Weld integrity must be ensured in order to prevent the spread of contamination during HIP. This paper presents a process for sealing HIP canisters remotely using modified, commercially available equipment. This process includes evacuation, heating, welding, and weld inspection. The process and equipment have proven to reliably seal canisters in continued HIP trials.

scholarly journals Idaho National Laboratory Cultural Resource Management Annual Report FY 2006

2007 ◽  
Author(s):  
Clayton F. Marler ◽  
Julie Braun ◽  
Hollie Gilbert ◽  
Dino Lowrey ◽  
Brenda Ringe Pace
Keyword(s):  
Resource Management ◽  
Annual Report ◽  
National Laboratory ◽  
Cultural Resource Management ◽  
Cultural Resource ◽  
Idaho National Laboratory
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