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Title: Permanganate Treatment of Savannah River Site Simulant Wastes for Strontium and Actinide Removal

Abstract

This study examined the use of sodium permanganate and strontium nitrate to remove the actinides and radio-strontium from Savannah River Site (SRS) waste supernate. We examined the quantities of chemical feed reagents along with increased mixing and the excess of organic reductant. Additionally, we examined two processing schemes including that applicable to either the Salt Waste Processing Facility or the Alpha Removal Process (ARP) (5.6 M sodium ion concentration) conditions and the conditions for an In-Tank application (7.5 M sodium ion concentration). Our results support the following conclusions: The process met minimum required decontamination factors (DFs) within the tested parameter sets for strontium and plutonium in both the ARP and In-Tank application. The strontium DFs far exceeded the required values within the tested parameter sets. Within the ARP application, the use of peroxide as the reductant for permanganate produced higher plutonium DFs than the use of sodium formate. Reductant concentration and degree of mixing strongly influenced radionuclide decontamination. In the formate application under the ARP process, increasing the reductant concentration and mixing energy resulted in higher Sr and Pu decontamination.

Authors:
Publication Date:
Research Org.:
Savannah River Site (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
817621
Report Number(s):
WSRC-TR-2003-00413
TRN: US0406815
DOE Contract Number:  
AC09-96SR18500
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 30 Oct 2003
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ACTINIDES; DECONTAMINATION; EFFICIENCY; FORMATES; PERMANGANATES; PEROXIDES; PLUTONIUM; PROCESSING; RADIOISOTOPES; SODIUM; SODIUM IONS; STRONTIUM; STRONTIUM NITRATES; WASTE PROCESSING; WASTES

Citation Formats

Wilmarth, W R. Permanganate Treatment of Savannah River Site Simulant Wastes for Strontium and Actinide Removal. United States: N. p., 2003. Web. doi:10.2172/817621.
Wilmarth, W R. Permanganate Treatment of Savannah River Site Simulant Wastes for Strontium and Actinide Removal. United States. doi:10.2172/817621.
Wilmarth, W R. Thu . "Permanganate Treatment of Savannah River Site Simulant Wastes for Strontium and Actinide Removal". United States. doi:10.2172/817621. https://www.osti.gov/servlets/purl/817621.
@article{osti_817621,
title = {Permanganate Treatment of Savannah River Site Simulant Wastes for Strontium and Actinide Removal},
author = {Wilmarth, W R},
abstractNote = {This study examined the use of sodium permanganate and strontium nitrate to remove the actinides and radio-strontium from Savannah River Site (SRS) waste supernate. We examined the quantities of chemical feed reagents along with increased mixing and the excess of organic reductant. Additionally, we examined two processing schemes including that applicable to either the Salt Waste Processing Facility or the Alpha Removal Process (ARP) (5.6 M sodium ion concentration) conditions and the conditions for an In-Tank application (7.5 M sodium ion concentration). Our results support the following conclusions: The process met minimum required decontamination factors (DFs) within the tested parameter sets for strontium and plutonium in both the ARP and In-Tank application. The strontium DFs far exceeded the required values within the tested parameter sets. Within the ARP application, the use of peroxide as the reductant for permanganate produced higher plutonium DFs than the use of sodium formate. Reductant concentration and degree of mixing strongly influenced radionuclide decontamination. In the formate application under the ARP process, increasing the reductant concentration and mixing energy resulted in higher Sr and Pu decontamination.},
doi = {10.2172/817621},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Oct 30 00:00:00 EST 2003},
month = {Thu Oct 30 00:00:00 EST 2003}
}

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