TITLE

Transuranium removal from Hanford high level waste simulants using sodium permanganate and calcium

AUTHOR(S)
Wilmarth, W. R.; Rosencrance, S. W.; Nash, C. A.; Fonduer, F. F.; DiPrete, D. P.; DiPrete, C. C.
PUB. DATE
July 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 532 Issue 1, p53
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Plutonium and americium are present in the Hanford high level liquid waste complexant concentrate (CC) due to the presence of complexing agents including di-(2-ethylhexyl) phosphoric acid (D[sub 2]EHPA), tributylphosphate (TBP), hydroxyethylene diamine triacetic acid (HEDTA), ethylene diamine tetraacetic acid (EDTA), citric acid, glycolic acid, and sodium gluconate. The transuranic concentrations approach 600 nCi/g and require processing prior to encapsulation into low activity glass. BNFL’s (British Nuclear Fuels Limited’s) original process was a ferric co-precipitation method based on earlier investigations by Herting and Orth, et al. Furthermore, flocculation and precipitation are widely used for clarification in municipal water treatment. Co-precipitation of Np, Am, and Pu with ferric hydroxide is also used within an analytical method for the sum of those analytes. Tests to evaluate BNFL’s original precipitation process indicated the measured decontamination factors (DFs) and filter fluxes were too low. Therefore, an evaluation of alternative precipitation agents to replace ferric ion was undertaken. Agents tested included various transition metals, lanthanide elements, uranium species, calcium, strontium, and permanganate. © 2000 American Institute of Physics.
ACCESSION #
5663279

 

Related Articles

  • Dusty damage. Edwards, Rob // New Scientist;10/17/98, Vol. 160 Issue 2156, p16 

    Focuses on a study which found British workers at the Sellafield nuclear plant who have inhaled plutonium dust have damaged chromosomes. Funded by British Nuclear Fuels; Level of plutonium in the workers' bodies; Fears over the development of leukemia in these workers.

  • Belgium and Britain swap plutonium. Milne, Roger // New Scientist;5/11/81, Vol. 130 Issue 1768, p15 

    Details the release of an unspecified amount of plutonium from an area in England for use in overseas power stations. Deal with the Belgian company Belgonucleaire; Confirmation of the trade from British Nuclear Fuels (BNFL); Plutonium stockpile at Sellafield, England; More.

  • Separation of Am(III) and Pu(IV) at Their Joint Oxalate Precipitation. Pazukhin, E. M.; Galkin, B. Ya.; Krinitsyn, A. P.; Pokhitonov, Yu. A.; Ryazantsev, V. I. // Radiochemistry;Mar/Apr2003, Vol. 45 Issue 2, p159 

    A procedure was developed for purification of plutonium to remove americium by oxalate precipitation using diethyl oxalate as a precipitant. The developed procedure was tested under laboratory conditions and on an enlarged installation. It was shown that the decontamination factor of plutonium...

  • New order for BNFL. Aldhous, P. // Nature;5/10/1990, Vol. 345 Issue 6271, p105 

    Reports that British Nuclear Fuels (BNFL) has signed a 225 million pound contract to reprocess 450 tons of reactor fuel from Lingen, West Germany in the twenty-first century. Plans also approved for BNFL to operate its nuclear reactors in Scotland and Cumbria.

  • Sellafield censure.  // New Scientist;2/22/92, Vol. 133 Issue 1809, p14 

    Reveals that British Nuclear Fuels has been heavily reprimanded by the country's nuclear safety watchdog after a potentially dangerous incident at the Sellafield complex. What took place; Plant has been shut down since September; What changes must take place.

  • British court approves plutonium processor.  // ENR: Engineering News-Record;3/28/94, Vol. 232 Issue 13, p23 

    Reports on the British court's approval to British Nuclear Fuels PLC to begin operation. Operation date; Number of metric tons of spent fuel to be chemically treated annually; Lawsuit filed against the government by the environmental group Greenpeace and the Lancashire County Council; Worry on...

  • Thorp in our side. Aubrey, Crispin // New Statesman & Society;11/5/93, Vol. 6 Issue 277, p30 

    Features the British Nuclear Fuels Ltd. (BNFL). Classification as a public company; Publicity; Issue on the company's Thorp reprocessing plant; Involvement with various governmental departments.

  • Reprocessing is challenged.  // ENR: Engineering News-Record;1/10/94, Vol. 232 Issue 2, p22 

    Reports on the January 13, 1994 hearing before the High Court in London that will determine the British Nuclear Fuels PLC's operation. Claims of the litigants; Intended beginning date of operation; Number of year the thermal oxide reprocessing plant (THORP) stand idle after contractors finished...

  • Americium extraction from plutonium metal. Watson, R. F. // AIP Conference Proceedings;2000, Vol. 532 Issue 1, p239 

    A single stage process using MgCl[sub 2] in CaCl[sub 2] has been demonstrated to remove 90% of the americium from plutonium with no transfer of impurities to the product metal except magnesium, which is readily removed in a vacuum casting operation. © 2000 American Institute of Physics.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics