High Level Waste Feed Certification in Hanford Double Shell Tanks
The ability to effectively mix, sample, certify, and deliver consistent batches of High Level Waste (HLW) feed from the Hanford Double Shell Tanks (DST) to the Waste Treatment and Immobilization Plant (WTP) presents a significant mission risk with potential to impact mission length and the quantity of HLW glass produced. DOE’s River Protection Project (RPP) mission modeling and WTP facility modeling assume that individual 3785 cubic meter (1 million gallon) HLW feed tanks are homogenously mixed, representatively sampled, and consistently delivered to the WTP. It has been demonstrated that homogenous mixing of HLW sludge in Hanford DSTs is not likely achievable with the baseline design thereby causing representative sampling and consistent feed delivery to be more difficult. Inconsistent feed to the WTP could cause additional batch to batch operational adjustments that reduces operating efficiency and has the potential to increase the overall mission length. The Hanford mixing and sampling demonstration program will identify DST mixing performance capability, will evaluate representative sampling techniques, and will estimate feed batch consistency. An evaluation of demonstration program results will identify potential mission improvement considerations that will help ensure successful mission completion. This paper will discuss the history, progress, and future activities that will define and mitigate the mission risk.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1024550
- Report Number(s):
- PNNL-SA-70776; TRN: US1104757
- Resource Relation:
- Conference: Waste Management 2010: Improving the Future by Dealing with the Past (WM2010), March 7-11, 2010, Phoeniz, Arizona, Paper No. 10083
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DEMONSTRATION PROGRAMS
DESIGN
EFFICIENCY
EVALUATION
GLASS
METERS
PERFORMANCE
RIVERS
SAMPLING
SIMULATION
SLUDGES
TANKS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
High Level Waste
Waste Treatment and Immobilization Plant
River Protection