Test Plan: Sludge Treatment Project Corrosion Process Chemistry Follow-on Testing
This test plan was prepared by the Pacific Northwest National Laboratory (PNNL) under contract with Fluor Hanford (FH). The test plan describes the scope and conditions to be used to perform laboratory-scale testing of the Sludge Treatment Project (STP) hydrothermal treatment of K Basin sludge. The STP, managed for the U. S. Department of Energy (DOE) by FH, was created to design and operate a process to eliminate uranium metal from the sludge prior to packaging for Waste Isolation Pilot Plant (WIPP) by using high temperature liquid water to accelerate the reaction, produce uranium dioxide from the uranium metal, and safely discharge the hydrogen. The proposed testing builds on the approach and laboratory test findings for both K Basin sludge and simulated sludge garnered during prior testing from September 2006 to March 2007. The outlined testing in this plan is designed to yield further understanding of the nature of the chemical reactions, the effects of compositional and process variations and the effectiveness of various strategies to mitigate the observed high shear strength phenomenon observed during the prior testing. These tests are designed to provide process validation and refinement vs. process development and design input. The expected outcome is to establish a level of understanding of the chemistry such that successful operating strategies and parameters can be implemented within the confines of the existing STP corrosion vessel design. In July 2007, the DOE provided direction to FH regarding significant changes to the scope of the overall STP. As a result of the changes, FH directed PNNL to stop work on most of the planned activities covered in this test plan. Therefore, it is unlikely the testing described here will be performed. However, to preserve the test strategy and details developed to date, the test plan has been published.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 939048
- Report Number(s):
- PNNL-16776; 830403000; TRN: US0806221
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CHEMICAL REACTIONS
CHEMISTRY
CORROSION
DESIGN
HYDROGEN
PACKAGING
PHOSPHORS
SHEAR PROPERTIES
SLUDGES
TESTING
URANIUM
URANIUM DIOXIDE
VALIDATION
WATER
WIPP
agitation
container sludge
corrosion process
hydrothermal treatment
K Basin
KE Basin
K East Basin
KW Basin
K West Basin
Sludge Treatment Project (STP)
K Basin Closure (KBC)
Hanford
oxidation
Settler Tank Sludge
spent nuclear fuel
sludge rheology
shear strength
stirring
test plan
unconfined compressive strength
uranium
uranium metal reaction
N Reactor Fuel