Nitrate salt immobilization process development and implementation

Technical Report · Thu Nov 20 04:00:00 EST 1986

OSTI ID:7185948

Petersen, R D; Johnson, A J; Peter, K G

The waste nitrate salts generated at the Rocky Flats Plant (RFP) were determined to be unacceptable in their present form for shipment to and storage at the Nevada Test Site, according to the recently implemented Waste Acceptance Criteria. A reduction in the dispersibility and oxidizing potential of the salt was necessary. Various methods of immobilization were investigated to determine the waste form with the highest possible waste loading and the most cost effective processing. Portland cement was selected as the most effective binder (in terms of cost and performance), with a 55 wt % waste loading and a 1.5 water-to-cement ratio. A nitrate salt immobilization process has been installed in the liquid waste processing building. The process uses dry nitrate salts from the existing spray dryer, spray dryer feed solution, and Portland cement. The resulting waste grout is packaged in a plastic lined, corrugated fiberboard tri-wall box, and shipped to the Nevada Test Site for burial.

• Research Organization: Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant
• DOE Contract Number: AC04-76DP03533
• OSTI ID: 7185948
• Report Number(s): RFP-3919; ON: DE87006190
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BUILDING MATERIALS
CEMENTS
LOW-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PORTLAND CEMENT
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
SOLIDIFICATION
WASTE FORMS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES