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Title: Electrochemical decontamination system for actinide processing gloveboxes

Abstract

An electrolytic decontamination technology has been developed and successfully demonstrated at Los Alamos National Laboratory (LANL) for the decontamination of actinide processing gloveboxes. The technique decontaminates the interior surfaces of stainless steel gloveboxes utilizing a process similar to electropolishing. The decontamination device is compact and transportable allowing it to be placed entirely within the glovebox line. In this way, decontamination does not require the operator to wear any additional personal protective equipment and there is no need for additional air handling or containment systems. Decontamination prior to glovebox decommissioning reduces the potential for worker exposure and environmental releases during the decommissioning, transport, and size reduction procedures which follow. The goal of this effort is to reduce contamination levels of alpha emitting nuclides for a resultant reduction in waste level category from High Level Transuranic (TRU) to low Specific Activity (LSA, less than or equal 100 nCi/g). This reduction in category results in a 95% reduction in disposal and disposition costs for the decontaminated gloveboxes. The resulting contamination levels following decontamination by this method are generally five orders of magnitude below the LSA specification. Additionally, the sodium sulfate based electrolyte utilized in the process is fully recyclable which results in themore » minimum of secondary waste. The process bas been implemented on seven gloveboxes within LANL`s Plutonium Facility at Technical Area 55. Of these gloveboxes, two have been discarded as low level waste items and the remaining five have been reused.« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
653944
Report Number(s):
LA-UR-97-4907; CONF-980307-
ON: DE98004211; TRN: 98:010113
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Waste management `98, Tucson, AZ (United States), 1-5 Mar 1998; Other Information: PBD: Mar 1998
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; GLOVEBOXES; DECONTAMINATION; ELECTROPOLISHING; SURFACE CLEANING; STAINLESS STEELS; DECOMMISSIONING; MINIMIZATION; SODIUM SULFATES; RECYCLING

Citation Formats

Wedman, D E, Lugo, J L, Ford, D K, Nelson, T O, Trujillo, V L, and Martinez, H E. Electrochemical decontamination system for actinide processing gloveboxes. United States: N. p., 1998. Web.
Wedman, D E, Lugo, J L, Ford, D K, Nelson, T O, Trujillo, V L, & Martinez, H E. Electrochemical decontamination system for actinide processing gloveboxes. United States.
Wedman, D E, Lugo, J L, Ford, D K, Nelson, T O, Trujillo, V L, and Martinez, H E. Sun . "Electrochemical decontamination system for actinide processing gloveboxes". United States. https://www.osti.gov/servlets/purl/653944.
@article{osti_653944,
title = {Electrochemical decontamination system for actinide processing gloveboxes},
author = {Wedman, D E and Lugo, J L and Ford, D K and Nelson, T O and Trujillo, V L and Martinez, H E},
abstractNote = {An electrolytic decontamination technology has been developed and successfully demonstrated at Los Alamos National Laboratory (LANL) for the decontamination of actinide processing gloveboxes. The technique decontaminates the interior surfaces of stainless steel gloveboxes utilizing a process similar to electropolishing. The decontamination device is compact and transportable allowing it to be placed entirely within the glovebox line. In this way, decontamination does not require the operator to wear any additional personal protective equipment and there is no need for additional air handling or containment systems. Decontamination prior to glovebox decommissioning reduces the potential for worker exposure and environmental releases during the decommissioning, transport, and size reduction procedures which follow. The goal of this effort is to reduce contamination levels of alpha emitting nuclides for a resultant reduction in waste level category from High Level Transuranic (TRU) to low Specific Activity (LSA, less than or equal 100 nCi/g). This reduction in category results in a 95% reduction in disposal and disposition costs for the decontaminated gloveboxes. The resulting contamination levels following decontamination by this method are generally five orders of magnitude below the LSA specification. Additionally, the sodium sulfate based electrolyte utilized in the process is fully recyclable which results in the minimum of secondary waste. The process bas been implemented on seven gloveboxes within LANL`s Plutonium Facility at Technical Area 55. Of these gloveboxes, two have been discarded as low level waste items and the remaining five have been reused.},
doi = {},
url = {https://www.osti.gov/biblio/653944}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {3}
}

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