Published February 2006 | Version v1
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Melting treatment of incineration ashes of radioactive waste

Creators

  • 1. Japan Atomic Energy Agency, Nuclear Safety Research Center, Tokai, Ibaraki (Japan)
  • 2. Radiation Application Development Association, Tokai, Ibaraki (Japan)

Description

Melting treatment is a candidate solidification technique for nonflammable low-level radioactive wastes including metals, incineration ashes, and glasses. Simulated incineration ashes of a wide range of chemical compositions were molten at 1,600degC to produce lab-scale slag form. No visible pores and separated phases were observed in the slag specimens. It was found by optical observation that some precipitates and small voids were uniformly distributed in many of the specimens. The precipitates were identified to be iron oxides by XRD analysis. The present tests indicate that melting treatment is technically capable to produce stable slag from incineration ashes, which is one of representative TRU-contaminated radioactive wastes. (author)

Availability note (English)

Available from JAEA; DOI: https://doi.org/10.11484/jaea-technology-2006-001

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Additional details

Identifiers

DOI
10.11484/jaea-technology-2006-001;

Publishing Information

Imprint Pagination
16 p.
Report number
JAEA-Technology--2006-001

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
37081888
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Descriptors DEI
ASHES; COMBUSTION; IRON OXIDES; MELTING; MICROSCOPY; PHASE DIAGRAMS; PRECIPITATION; RADIOACTIVE WASTES; SLAGS; SOLIDIFICATION; X-RAY DIFFRACTION
Descriptors DEC
CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; COMBUSTION PRODUCTS; DIAGRAMS; DIFFRACTION; INFORMATION; IRON COMPOUNDS; MATERIALS; OXIDATION; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; RADIOACTIVE MATERIALS; RESIDUES; SCATTERING; SEPARATION PROCESSES; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT COMPOUNDS; WASTES

Optional Information

Notes
6 refs., 5 figs., 2 tabs.