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Title: High Level Waste System Impacts from Small Column Ion Exchange Implementation

Abstract

The objective of this task is to identify potential waste streams that could be treated with the Small Column Ion Exchange (SCIX) and perform an initial assessment of the impact of doing so on the High-Level Waste (HLW) system. Design of the SCIX system has been performed as a backup technology for decontamination of High-Level Waste (HLW) at the Savannah River Site (SRS). The SCIX consists of three modules which can be placed in risers inside underground HLW storage tanks. The pump and filter module and the ion exchange module are used to filter and decontaminate the aqueous tank wastes for disposition in Saltstone. The ion exchange module contains Crystalline Silicotitanate (CST in its engineered granular form is referred to as IONSIV{reg_sign} IE-911), and is selective for removal of cesium ions. After the IE-911 is loaded with Cs-137, it is removed and the column is refilled with a fresh batch. The grinder module is used to size-reduce the cesium-loaded IE-911 to make it compatible with the sludge vitrification system in the Defense Waste Processing Facility (DWPF). If installed at the SRS, this SCIX would need to operate within the current constraints of the larger HLW storage, retrieval, treatment, and disposalmore » system. Although the equipment has been physically designed to comply with system requirements, there is also a need to identify which waste streams could be treated, how it could be implemented in the tank farms, and when this system could be incorporated into the HLW flowsheet and planning. This document summarizes a preliminary examination of the tentative HLW retrieval plans, facility schedules, decontamination factor targets, and vitrified waste form compatibility, with recommendations for a more detailed study later. The examination was based upon four batches of salt solution from the currently planned disposition pathway to treatment in the SCIX. Because of differences in capabilities between the SRS baseline and SCIX, these four batches were combined into three batches for a total of about 3.2 million gallons of liquid waste. The chemical and radiological composition of these batches was estimated from the SpaceMan Plus{trademark} model using the same data set and assumptions as the baseline plans.« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC
Sponsoring Org.:
USDOE
OSTI Identifier:
881518
Report Number(s):
WSRC-TR-2005-00034
TRN: US0603154
DOE Contract Number:  
DE-AC09-96SR18500
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CESIUM IONS; COMPATIBILITY; DECONTAMINATION; EFFICIENCY; FLOWSHEETS; IMPLEMENTATION; ION EXCHANGE; LIQUID WASTES; SLUDGES; STORAGE; STORAGE FACILITIES; TANKS; TARGETS; VITRIFICATION; WASTE FORMS; WASTE PROCESSING

Citation Formats

McCabe, D J, Hamm, L L, Aleman, S E, Peeler, D K, Herman, C C, and Edwards, T B. High Level Waste System Impacts from Small Column Ion Exchange Implementation. United States: N. p., 2005. Web. doi:10.2172/881518.
McCabe, D J, Hamm, L L, Aleman, S E, Peeler, D K, Herman, C C, & Edwards, T B. High Level Waste System Impacts from Small Column Ion Exchange Implementation. United States. doi:10.2172/881518.
McCabe, D J, Hamm, L L, Aleman, S E, Peeler, D K, Herman, C C, and Edwards, T B. Thu . "High Level Waste System Impacts from Small Column Ion Exchange Implementation". United States. doi:10.2172/881518. https://www.osti.gov/servlets/purl/881518.
@article{osti_881518,
title = {High Level Waste System Impacts from Small Column Ion Exchange Implementation},
author = {McCabe, D J and Hamm, L L and Aleman, S E and Peeler, D K and Herman, C C and Edwards, T B},
abstractNote = {The objective of this task is to identify potential waste streams that could be treated with the Small Column Ion Exchange (SCIX) and perform an initial assessment of the impact of doing so on the High-Level Waste (HLW) system. Design of the SCIX system has been performed as a backup technology for decontamination of High-Level Waste (HLW) at the Savannah River Site (SRS). The SCIX consists of three modules which can be placed in risers inside underground HLW storage tanks. The pump and filter module and the ion exchange module are used to filter and decontaminate the aqueous tank wastes for disposition in Saltstone. The ion exchange module contains Crystalline Silicotitanate (CST in its engineered granular form is referred to as IONSIV{reg_sign} IE-911), and is selective for removal of cesium ions. After the IE-911 is loaded with Cs-137, it is removed and the column is refilled with a fresh batch. The grinder module is used to size-reduce the cesium-loaded IE-911 to make it compatible with the sludge vitrification system in the Defense Waste Processing Facility (DWPF). If installed at the SRS, this SCIX would need to operate within the current constraints of the larger HLW storage, retrieval, treatment, and disposal system. Although the equipment has been physically designed to comply with system requirements, there is also a need to identify which waste streams could be treated, how it could be implemented in the tank farms, and when this system could be incorporated into the HLW flowsheet and planning. This document summarizes a preliminary examination of the tentative HLW retrieval plans, facility schedules, decontamination factor targets, and vitrified waste form compatibility, with recommendations for a more detailed study later. The examination was based upon four batches of salt solution from the currently planned disposition pathway to treatment in the SCIX. Because of differences in capabilities between the SRS baseline and SCIX, these four batches were combined into three batches for a total of about 3.2 million gallons of liquid waste. The chemical and radiological composition of these batches was estimated from the SpaceMan Plus{trademark} model using the same data set and assumptions as the baseline plans.},
doi = {10.2172/881518},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {8}
}

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