New Waste Calciner High Temperature Operation

Technical Report · Fri Sep 01 04:00:00 EDT 2000

DOI:https://doi.org/10.2172/801433· OSTI ID:801433

Swenson, M C ^[1]

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1. Idaho National Engineering and Environmental Laboratory

A new Calciner flowsheet has been developed to process the sodium-bearing waste (SBW) in the INTEC Tank Farm. The new flowsheet increases the normal Calciner operating temperature from 500 C to 600 C. At the elevated temperature, sodium in the waste forms stable aluminates, instead of nitrates that melt at calcining temperatures. From March through May 2000, the new high-temperature flowsheet was tested in the New Waste Calcining Facility (NWCF) Calciner. Specific test criteria for various Calciner systems (feed, fuel, quench, off-gas, etc.) were established to evaluate the long-term operability of the high-temperature flowsheet. This report compares in detail the Calciner process data with the test criteria. The Calciner systems met or exceeded all test criteria. The new flowsheet is a visible, long-term method of calcining SBW. Implementation of the flowsheet will significantly increase the calcining rate of SBW and reduce the amount of calcine produced by reducing the amount of chemical additives to the Calciner. This will help meet the future waste processing milestones and regulatory needs such as emptying the Tank Farm.

• Research Organization: Idaho National Engineering and Environmental Laboratory, Idaho Falls, ID (US)
• Sponsoring Organization: USDOE Office of Environmental Management (EM) (US)
• DOE Contract Number: AC07-99ID13727
• OSTI ID: 801433
• Report Number(s): INEEL/EXT-2000-01004
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ADDITIVES
ALUMINATES
CALCINE
CHEMICAL ADDITIVES
FLOWSHEET
FLOWSHEETS
HIGH TEMPERATURE
IMPLEMENTATION
MELT
NITRATES
SODIUM
STORAGE FACILITIES
WASTE
WASTE FORMS
WASTE PROCESSING
WASTES