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Title: EVALUATION OF MIXING IN THE SLURRY MIX EVAPORATOR AND MELTER FEED TANK

Abstract

The Defense Waste Processing Facility (DWPF) vitrifies High Level radioactive Waste (HLW) currently stored in underground tanks at the Savannah River Site (SRS). The HLW currently being processed is a waste sludge composed primarily of metal hydroxides and oxides in caustic slurry. These slurries are typically characterized as Bingham Plastic fluids. The HLW undergoes a pretreatment process in the Chemical Process Cell (CPC) at DWPF. The processed HLW sludge is then transferred to the Sludge Receipt and Adjustment Tank (SRAT) where it is acidified with nitric and formic acid then evaporated to concentrate the solids. Reflux boiling is used to strip mercury from the waste and then the waste is transferred to the Slurry Mix Evaporator tank (SME). Glass formers are added as a frit slurry to the SME to prepare the waste for vitrification. This mixture is evaporated in the SME to the final concentration target. The frit slurry mixture is then transferred to the Melter Feed Tank (MFT) to be fed to the melter.

Authors:
Publication Date:
Research Org.:
Savannah River Site (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
835228
Report Number(s):
WSRC-TR-2004-00436
TRN: US0407492
DOE Contract Number:  
AC09-96SR18500
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Aug 2004
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; BOILING; EVALUATION; EVAPORATORS; FORMIC ACID; GLASS; HYDROXIDES; MERCURY; MIXTURES; OXIDES; PLASTICS; RADIOACTIVE WASTES; SLUDGES; SLURRIES; TANKS; VITRIFICATION; WASTE PROCESSING; DWPF; MIXING,VORTEX; XANTHAN GUM,SCALING MIXING TANKS

Citation Formats

MARINIK, ANDREW. EVALUATION OF MIXING IN THE SLURRY MIX EVAPORATOR AND MELTER FEED TANK. United States: N. p., 2004. Web. doi:10.2172/835228.
MARINIK, ANDREW. EVALUATION OF MIXING IN THE SLURRY MIX EVAPORATOR AND MELTER FEED TANK. United States. doi:10.2172/835228.
MARINIK, ANDREW. Sun . "EVALUATION OF MIXING IN THE SLURRY MIX EVAPORATOR AND MELTER FEED TANK". United States. doi:10.2172/835228. https://www.osti.gov/servlets/purl/835228.
@article{osti_835228,
title = {EVALUATION OF MIXING IN THE SLURRY MIX EVAPORATOR AND MELTER FEED TANK},
author = {MARINIK, ANDREW},
abstractNote = {The Defense Waste Processing Facility (DWPF) vitrifies High Level radioactive Waste (HLW) currently stored in underground tanks at the Savannah River Site (SRS). The HLW currently being processed is a waste sludge composed primarily of metal hydroxides and oxides in caustic slurry. These slurries are typically characterized as Bingham Plastic fluids. The HLW undergoes a pretreatment process in the Chemical Process Cell (CPC) at DWPF. The processed HLW sludge is then transferred to the Sludge Receipt and Adjustment Tank (SRAT) where it is acidified with nitric and formic acid then evaporated to concentrate the solids. Reflux boiling is used to strip mercury from the waste and then the waste is transferred to the Slurry Mix Evaporator tank (SME). Glass formers are added as a frit slurry to the SME to prepare the waste for vitrification. This mixture is evaporated in the SME to the final concentration target. The frit slurry mixture is then transferred to the Melter Feed Tank (MFT) to be fed to the melter.},
doi = {10.2172/835228},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {8}
}

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