Development and testing of inorganic sorbents made by the internal gelation process for radionuclide and heavy metal separations

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The objectives of this task are to develop, prepare, and test microspheres and granular forms of inorganic ion exchangers to remove radionuclides and heavy metals from waste streams occurring at various sites. Several inorganic materials, such as hexacyanoferrates, titanates, phosphates, and oxides have high selectivities and efficiencies for separating and removing radionuclides such as uranium, technetium, cesium, and strontium, and metals such as cobalt, silver, zinc, and zirconium from aqueous waste streams. However, these sorbents frequently exist only as powders and consequently are not readily adaptable to continuous processing such as column chromatography. Making these inorganic ion exchangers as microspheres ... continued below

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5 p.

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Egan, B. Z.; Collins, J. L.; Anderson, K. K. & Chase, C. W. November 29, 1995.

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Description

The objectives of this task are to develop, prepare, and test microspheres and granular forms of inorganic ion exchangers to remove radionuclides and heavy metals from waste streams occurring at various sites. Several inorganic materials, such as hexacyanoferrates, titanates, phosphates, and oxides have high selectivities and efficiencies for separating and removing radionuclides such as uranium, technetium, cesium, and strontium, and metals such as cobalt, silver, zinc, and zirconium from aqueous waste streams. However, these sorbents frequently exist only as powders and consequently are not readily adaptable to continuous processing such as column chromatography. Making these inorganic ion exchangers as microspheres or granular forms improves the flow dynamics for column operations and expands their practical applications. Microspheres of several materials have been prepared at ORNL, and the effectiveness of zirconium monohydrogen phosphate and hydrous titanium oxide microspheres for removing radionuclides from hot cell waste solutions has been demonstrated.

Physical Description

5 p.

Notes

INIS; OSTI as DE96005660

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  • Efficient separations and processing crosscutting program 1996 technical meeting, Gaithersburg, MD (United States), 16-19 Jan 1996

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  • Other: DE96005660
  • Report No.: CONF-960158--4
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 201694
  • Archival Resource Key: ark:/67531/metadc667650

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • November 29, 1995

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  • June 29, 2015, 9:42 p.m.

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  • Jan. 25, 2016, 8:08 p.m.

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Egan, B. Z.; Collins, J. L.; Anderson, K. K. & Chase, C. W. Development and testing of inorganic sorbents made by the internal gelation process for radionuclide and heavy metal separations, article, November 29, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc667650/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.