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Title: LFCM (liquid-fed eramic melter) emission and off-gas system performance for feed component cesium

Abstract

Except for volatile off-gas effluents, overall adequacy of the liquid-fed ceramic melter (LFCM) system depends most upon its effectiveness in dealing with cesium. However, the mechanism responsible for melter cesium losses has proved insensitive to many LFCM operating and processing conditions. As a result, variations in inleakage, plenum temperature, feeding rate and waste loading do not significantly influence melter cesium performance. Feed composition, specifically halogen content, is the only processing variable that has had a significant effect. Due to the submicron nature of LFCM-generated aerosols, melter disengagement design features are not expected to be particularly effective in reducing cesium emission rates. For the same reason, the cesium performance of conventional quench scrubbers is quite low, being dependent only upon the magnitude of melter entrainment losses. Although a deep bed washable filter has been effective in removing submicron aerosols from the process exhaust, high performance has only been achieved under dry operating conditions. The melter's idling state does not appear to place additional demands upon the off-gas treatment system.

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest Lab., Richland, WA (USA)
OSTI Identifier:
7051044
Report Number(s):
PNL-SA-13954; CONF-860905-25
ON: DE87003406
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Technical Report
Resource Relation:
Conference: International meeting on low, intermediate and high level waste management - decontamination and decommissioning, Niagara Falls, NY, USA, 14 Sep 1986
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CERAMIC MELTERS; OFF-GAS SYSTEMS; CESIUM; EMISSION; PERFORMANCE; EXPERIMENTAL DATA; ALKALI METALS; DATA; ELECTRIC FURNACES; ELEMENTS; FURNACES; INFORMATION; METALS; NUMERICAL DATA; 052001* - Nuclear Fuels- Waste Processing

Citation Formats

Goles, R W, and Andersen, C M. LFCM (liquid-fed eramic melter) emission and off-gas system performance for feed component cesium. United States: N. p., 1986. Web.
Goles, R W, & Andersen, C M. LFCM (liquid-fed eramic melter) emission and off-gas system performance for feed component cesium. United States.
Goles, R W, and Andersen, C M. 1986. "LFCM (liquid-fed eramic melter) emission and off-gas system performance for feed component cesium". United States.
@article{osti_7051044,
title = {LFCM (liquid-fed eramic melter) emission and off-gas system performance for feed component cesium},
author = {Goles, R W and Andersen, C M},
abstractNote = {Except for volatile off-gas effluents, overall adequacy of the liquid-fed ceramic melter (LFCM) system depends most upon its effectiveness in dealing with cesium. However, the mechanism responsible for melter cesium losses has proved insensitive to many LFCM operating and processing conditions. As a result, variations in inleakage, plenum temperature, feeding rate and waste loading do not significantly influence melter cesium performance. Feed composition, specifically halogen content, is the only processing variable that has had a significant effect. Due to the submicron nature of LFCM-generated aerosols, melter disengagement design features are not expected to be particularly effective in reducing cesium emission rates. For the same reason, the cesium performance of conventional quench scrubbers is quite low, being dependent only upon the magnitude of melter entrainment losses. Although a deep bed washable filter has been effective in removing submicron aerosols from the process exhaust, high performance has only been achieved under dry operating conditions. The melter's idling state does not appear to place additional demands upon the off-gas treatment system.},
doi = {},
url = {https://www.osti.gov/biblio/7051044}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 1986},
month = {Mon Sep 01 00:00:00 EDT 1986}
}

Technical Report:
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