Chemically bonded phosphate ceramics for low-level mixed waste stabilization

Technical Report · Sat Dec 31 00:00:00 EST 1994

DOI:https://doi.org/10.2172/10114142· OSTI ID:10114142

Singh, D; Wagh, A S; Cunnane, J C ^[1]; Mayberry, J L ^[2]

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1. Argonne National Lab., IL (United States)
2. Science Applications International Corp., Idaho Falls, ID (United States)

Novel chemically bonded phosphate ceramics (CBPCs) are being developed and fabricated for low-temperature stabilization and solidification of mixed waste streams which are amenable to conventional high-temperature stabilization processes due to presence of volatiles such as heavy metal chloride and fluorides and/or pyrophorics in the wastes. Phosphates of Mg, Mg-Na and Zr are being developed as candidate matrix materials. In this paper, we present the fabrication procedures of phosphate waste forms using surrogates compositions of three typical mixed wastes streams -- ash, cement sludges, and salts. The performance of the final waste forms such as compression strength, leachability of the contaminants, durability in aqueous environment were conducted. In addition, parameteric studies have been conducted to establish the optimal waste loading in a particular binder system. Based on the results, we present potential applications in the treatment of various mixed waste streams.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10114142
• Report Number(s): ANL/ET/CP-82489; CONF-9409178-13; ON: DE95005840
• Resource Relation: Conference: American Chemical Society meeting on industrial and engineering chemistry,Atlanta, GA (United States),19-21 Sep 1994; Other Information: PBD: [1994]
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
LOW-LEVEL RADIOACTIVE WASTES
SOLIDIFICATION
HAZARDOUS MATERIALS
CERAMICS
MATRIX MATERIALS
MATERIALS TESTING
WASTE FORMS
MECHANICAL PROPERTIES
RADIOACTIVE WASTE PROCESSING
MIXTURES
MAGNESIUM PHOSPHATES
SODIUM PHOSPHATES
ZIRCONIUM PHOSPHATES
EXPERIMENTAL DATA
052001
360200
WASTE PROCESSING
CERAMICS, CERMETS, AND REFRACTORIES