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Title: High Level Waste System Impacts from Acid Dissolution of Sludge

Abstract

This research evaluates the ability of OLI{copyright} equilibrium based software to forecast Savannah River Site High Level Waste system impacts from oxalic acid dissolution of Tank 1-15 sludge heels. Without further laboratory and field testing, only the use of oxalic acid can be considered plausible to support sludge heel dissolution on multiple tanks. Using OLI{copyright} and available test results, a dissolution model is constructed and validated. Material and energy balances, coupled with the model, identify potential safety concerns. Overpressurization and overheating are shown to be unlikely. Corrosion induced hydrogen could, however, overwhelm the tank ventilation. While pH adjustment can restore the minimal hydrogen generation, resultant precipitates will notably increase the sludge volume. OLI{copyright} is used to develop a flowsheet such that additional sludge vitrification canisters and other negative system impacts are minimized. Sensitivity analyses are used to assess the processability impacts from variations in the sludge/quantities of acids.

Authors:
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
890068
Report Number(s):
CBU-PIT-2005-00260R1
TRN: US0604703
DOE Contract Number:  
DE-AC09-96SR18500
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CONTAINERS; CORROSION; DISSOLUTION; ENERGY BALANCE; FLOWSHEETS; HYDROGEN; OXALIC ACID; SAFETY; SENSITIVITY; SLUDGES; TANKS; TESTING; VENTILATION; VITRIFICATION; WASTES

Citation Formats

KETUSKY, EDWARD. High Level Waste System Impacts from Acid Dissolution of Sludge. United States: N. p., 2006. Web. doi:10.2172/890068.
KETUSKY, EDWARD. High Level Waste System Impacts from Acid Dissolution of Sludge. United States. https://doi.org/10.2172/890068
KETUSKY, EDWARD. 2006. "High Level Waste System Impacts from Acid Dissolution of Sludge". United States. https://doi.org/10.2172/890068. https://www.osti.gov/servlets/purl/890068.
@article{osti_890068,
title = {High Level Waste System Impacts from Acid Dissolution of Sludge},
author = {KETUSKY, EDWARD},
abstractNote = {This research evaluates the ability of OLI{copyright} equilibrium based software to forecast Savannah River Site High Level Waste system impacts from oxalic acid dissolution of Tank 1-15 sludge heels. Without further laboratory and field testing, only the use of oxalic acid can be considered plausible to support sludge heel dissolution on multiple tanks. Using OLI{copyright} and available test results, a dissolution model is constructed and validated. Material and energy balances, coupled with the model, identify potential safety concerns. Overpressurization and overheating are shown to be unlikely. Corrosion induced hydrogen could, however, overwhelm the tank ventilation. While pH adjustment can restore the minimal hydrogen generation, resultant precipitates will notably increase the sludge volume. OLI{copyright} is used to develop a flowsheet such that additional sludge vitrification canisters and other negative system impacts are minimized. Sensitivity analyses are used to assess the processability impacts from variations in the sludge/quantities of acids.},
doi = {10.2172/890068},
url = {https://www.osti.gov/biblio/890068}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Apr 20 00:00:00 EDT 2006},
month = {Thu Apr 20 00:00:00 EDT 2006}
}