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Title: Removal of Technetium, Carbon Tetrachloride, and Metals from DOE Properties.

Abstract

The objective of this research is to prepare, characterize, and evaluate new materials for the removal of technetium (Tc) compounds, halogenated organics, and other troublesome metals from DOE waste streams and contaminated areas. This work follows the discovery that a nanoscale form of zero-valent iron, dispersed on high surface area supports, reduces metal ions (Cr, Hg, Pb, Cd) and Re (as a surrogate for Tc) to insoluble forms faster and with higher efficiency than does unsupported iron. Liquid-liquid extraction methods are also being developed for quantitative removal of Cs from tetraphenylborate salt mixtures, which are generated in waste processing at Savannah River, and conversion to vitrifiable inorganic Cs salts.

Authors:
; ;
Publication Date:
Research Org.:
Penn State University, University Park, PA; Pacific Northwest National Lab., Richland, WA (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
828485
Report Number(s):
EMSP-60017-2000
R&D Project: EMSP 60017; TRN: US200427%%428
DOE Contract Number:  
FG07-97ER14822
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES; CARBON TETRACHLORIDE; EFFICIENCY; IRON; MIXTURES; REMOVAL; SAVANNAH RIVER PLANT; SOLVENT EXTRACTION; SURFACE AREA; TECHNETIUM; WASTE PROCESSING; WASTES

Citation Formats

Mallouk, Thomas E, Ponder, Sherman M, and Darab, John. Removal of Technetium, Carbon Tetrachloride, and Metals from DOE Properties.. United States: N. p., 2000. Web. doi:10.2172/828485.
Mallouk, Thomas E, Ponder, Sherman M, & Darab, John. Removal of Technetium, Carbon Tetrachloride, and Metals from DOE Properties.. United States. doi:10.2172/828485.
Mallouk, Thomas E, Ponder, Sherman M, and Darab, John. Thu . "Removal of Technetium, Carbon Tetrachloride, and Metals from DOE Properties.". United States. doi:10.2172/828485. https://www.osti.gov/servlets/purl/828485.
@article{osti_828485,
title = {Removal of Technetium, Carbon Tetrachloride, and Metals from DOE Properties.},
author = {Mallouk, Thomas E and Ponder, Sherman M and Darab, John},
abstractNote = {The objective of this research is to prepare, characterize, and evaluate new materials for the removal of technetium (Tc) compounds, halogenated organics, and other troublesome metals from DOE waste streams and contaminated areas. This work follows the discovery that a nanoscale form of zero-valent iron, dispersed on high surface area supports, reduces metal ions (Cr, Hg, Pb, Cd) and Re (as a surrogate for Tc) to insoluble forms faster and with higher efficiency than does unsupported iron. Liquid-liquid extraction methods are also being developed for quantitative removal of Cs from tetraphenylborate salt mixtures, which are generated in waste processing at Savannah River, and conversion to vitrifiable inorganic Cs salts.},
doi = {10.2172/828485},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}

Technical Report:

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