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Removal of radioactive and other hazardous material from fluid waste

Patent ·
OSTI ID:908245
 [1];  [1];  [2];  [3];  [4];  [4];  [5];  [6];  [6]
  1. Idaho Falls, ID
  2. Aberdeen, ID
  3. W. Richland, WA
  4. Krasnoyarsk, RU
  5. Zheleznogorsk, RU
  6. St. Petersburg, RU
+ Show Author Affiliations

Hollow glass microspheres obtained from fly ash (cenospheres) are impregnated with extractants/ion-exchangers and used to remove hazardous material from fluid waste. In a preferred embodiment the microsphere material is loaded with ammonium molybdophosphonate (AMP) and used to remove radioactive ions, such as cesium-137, from acidic liquid wastes. In another preferred embodiment, the microsphere material is loaded with octyl(phenyl)-N-N-diisobutyl-carbamoylmethylphosphine oxide (CMPO) and used to remove americium and plutonium from acidic liquid wastes.

Research Organization:
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
AC07-99ID13727
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Number(s):
7,115,542
Application Number:
10/748,913
OSTI ID:
908245
Country of Publication:
United States
Language:
English

References (4)

Development and Testing of a New Porous Crystalline Matrix (Gubka) for Stabilizing Actinide Solutions journal January 1999
Investigations of the Sorption of Cesium from Acid Solutions by Various Inorganic Sorbents journal January 1981
Development and Characteristics of a New Porous Glass Crystalline Matrix (Gubka) for Stabilizing Radioactive and Hazardous Solutions journal January 2000
Evaluation of ammonium molybdophosphate-polyacrylonitrile (AMP-PAN) as a cesium selective sorbent for the removal of 137Cs from acidic nuclear waste solutions journal March 2002

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Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES