Oxidative-Alkaline Leaching of Washed 241-SY-102 and 241-SX-101 Tank Sludges and Its Impact on Immobilized High-Level Waste
Abstract
This report describes work designed to evaluate the effectiveness of alkaline permanganate contacts at selectively removing chromium from the Hanford tank sludges 241-SY-102 and 241-SX-101. The key variables examined in this study, as compared to contact with the standard conditions of stoichiometric permanganate in 3 M hydroxide at elevated temperature, were: a) excess permanganate and hydroxide at elevated temperature, b) the separation of an elevated temperature 3 M hydroxide leach with either a room temperature permanganate contact or an elevated temperature permanganate contact at 0.25 M hydroxide. It was determined that sequential permanganate and caustic leaching can provide as effective removal of Cr as the combined high hydroxide permanganate contact at elevated temperature while minimizing concomitant Pu dissolution.
- Authors:
-
- Battelle, Richland, WA (United States). Pacific Northwest Division
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 889529
- Report Number(s):
- PNWD-SA-7160
Journal ID: ISSN 0149-6395; SSTEDS; TRN: US0604408
- DOE Contract Number:
- AC05-76RL01830
- Resource Type:
- Journal Article
- Resource Relation:
- Journal Name: Separation Science and Technology; Journal Volume: 41; Journal Issue: 10
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CHROMIUM; REMOVAL; DISSOLUTION; LEACHING; PERMANGANATES; SLUDGES; STORAGE FACILITIES; HANFORD RESERVATION; HIGH-LEVEL RADIOACTIVE WASTES; Oxidative Leaching; chromium; Hanford Tank Sludge
Citation Formats
Rapko, Brian M., Geeting, John G.H., Sinkov, Sergei I., and Vienna, John D.. Oxidative-Alkaline Leaching of Washed 241-SY-102 and 241-SX-101 Tank Sludges and Its Impact on Immobilized High-Level Waste. United States: N. p., 2007.
Web. doi:10.1080/01496390600750917.
Rapko, Brian M., Geeting, John G.H., Sinkov, Sergei I., & Vienna, John D.. Oxidative-Alkaline Leaching of Washed 241-SY-102 and 241-SX-101 Tank Sludges and Its Impact on Immobilized High-Level Waste. United States. doi:10.1080/01496390600750917.
Rapko, Brian M., Geeting, John G.H., Sinkov, Sergei I., and Vienna, John D.. Thu .
"Oxidative-Alkaline Leaching of Washed 241-SY-102 and 241-SX-101 Tank Sludges and Its Impact on Immobilized High-Level Waste". United States.
doi:10.1080/01496390600750917.
@article{osti_889529,
title = {Oxidative-Alkaline Leaching of Washed 241-SY-102 and 241-SX-101 Tank Sludges and Its Impact on Immobilized High-Level Waste},
author = {Rapko, Brian M. and Geeting, John G.H. and Sinkov, Sergei I. and Vienna, John D.},
abstractNote = {This report describes work designed to evaluate the effectiveness of alkaline permanganate contacts at selectively removing chromium from the Hanford tank sludges 241-SY-102 and 241-SX-101. The key variables examined in this study, as compared to contact with the standard conditions of stoichiometric permanganate in 3 M hydroxide at elevated temperature, were: a) excess permanganate and hydroxide at elevated temperature, b) the separation of an elevated temperature 3 M hydroxide leach with either a room temperature permanganate contact or an elevated temperature permanganate contact at 0.25 M hydroxide. It was determined that sequential permanganate and caustic leaching can provide as effective removal of Cr as the combined high hydroxide permanganate contact at elevated temperature while minimizing concomitant Pu dissolution.},
doi = {10.1080/01496390600750917},
journal = {Separation Science and Technology},
number = 10,
volume = 41,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}
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