CSER 95-005: PFP vertical denitration calciner

Technical Report · Mon May 01 00:00:00 EDT 1995

DOI:https://doi.org/10.2172/83874· OSTI ID:83874

Geiger, J L

The Vertical Denitrating Calciner system will stabilize certain unique solutions containing fissile salts by removing the water and nitrate ion to produce a more easily stored powder. This end is achieved by high-firing the solution in the calciner. The resultant calcine is distinguished by particles which are larger and denser than those produced by the more conventional oxalate precipitation process. This criticality safety evaluation report examines criticality safety for the denitration system, installed in glovebox 188-1 at PFP. The examination shows that, due to the incorporation of standard criticality safety design techniques, the glovebox can be maintained subcritical with minimal reliance on administrative controls. The examination also shows that, ignoring the necessary administrative controls can make a criticality possible in glovebox 188-1. Section 3.0 of this report lists the necessary administrative controls.

• Research Organization: Westinghouse Hanford Co., Richland, WA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 83874
• Report Number(s): WHC-SD-SQA-CSA--20392; ON: DE95014430
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
CALCINATION
DENITRATION
DIAGRAMS
FISSILE MATERIALS
HANFORD RESERVATION
Nuclear Criticality Safety Program (NCSP)
RADIOACTIVE WASTE PROCESSING