Published 2005 | Version v1
Computer medium Metadata-only

Decontamination of uranium contained wastes of intricate structure using supercritical carbon dioxide

Creators

  • 1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
  • 2. Nagoya Univ., Nagoya, Aichi (Japan)
  • 3. Kobe Steel, Ltd., Kobe, Hyogo (Japan)
  • 4. SCF Techno-Link, Inc., Ashiya, Hyogo (Japan)

Description

Supercritical CO2 fluid leaching (SFL) method using supercritical CO2 fluid containing a nitric acid-tri-n-butylphosphate (TBP) complex as a reactant was applied to removal of uranium from radioactive solid wastes. A part of a commercial HEPA filter, in which 500 ppm using uranium oxide powder was added, was compressed and then employed as a sample of intricate structure. It was found that 99.5% uranium was removed from the sample by the SFL method. The removal efficiency was improved by using an ultrasonic equipment. The removal efficiency was not changed in the range of uranium concentration examined but was affected by the shape of the sample. (author)

Part of:
GLOBAL 2005: Proceedings of the international conference on nuclear energy systems for future generation and global sustainability

Additional details

Publishing Information

Publisher
Atomic Energy Society of Japan
Imprint Place
Tokyo (Japan)
Imprint Title
GLOBAL 2005: Proceedings of the international conference on nuclear energy systems for future generation and global sustainability
Imprint Pagination
[2562 p.]
Journal Page Range
[4 p.]

Conference

Title
International conference on nuclear energy systems for future generation and global sustainability
Acronym
GLOBAL 2005
Dates
9-13 Oct 2005
Place
Tsukuba, Ibaraki (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
37048984
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CARBON DIOXIDE; DECONTAMINATION; EFFICIENCY; FILTERS; LEACHING; NITRIC ACID; RADIOACTIVE WASTES; SOLID WASTES; SUPERCRITICAL STATE; TBP; ULTRASONIC WAVES; URANIUM
Descriptors DEC
ACTINIDES; BUTYL PHOSPHATES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CLEANING; DISSOLUTION; ELEMENTS; ESTERS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MATERIALS; METALS; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHOSPHORIC ACID ESTERS; RADIOACTIVE MATERIALS; SEPARATION PROCESSES; SOUND WAVES; WASTES

Optional Information

Notes
This CD-ROM can be used for WINDOWS 9x/NT/2000/ME/XP, MACINTOSH; Acrobat Reader is included; Data in PDF format, Folder Name GL3XX, Paper ID GL318DF.pdf; 16 refs., 3 figs., 2 tabs.