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Title: Hydrogen production during processing of radioactive sludge containing noble metals

Abstract

Hydrogen was produced when radioactive sludge from Savannah River Site radioactive waste containing noble metals was reacted with formic acid. This will occur in a process tank in the Defense Waste Facility at SRS when waste is vitrified. Radioactive sludges from four tanks were tested in a lab-scale apparatus. Maximum hydrogen generation rates varied from 5 {times}10{sup {minus}7} g H{sub 2}/hr/g of sludge from the least reactive sludge (from Waste Tank 51) to 2 {times}10{sup {minus}4} g H{sub 2}/hr/g of sludge from the most reactive sludge (from Waste Tank 11). The time required for the hydrogen generation to reach a maximum varied from 4.1 to 25 hours. In addition to hydrogen, carbon dioxide and nitrous oxide were produced and the pH of the reaction slurry increased. In all cases, the carbon dioxide and nitrous oxide were generated before the hydrogen. The results are in agreement with large-scale studies using simulated sludges.

Authors:
; ;
Publication Date:
Research Org.:
Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
7077242
Report Number(s):
WSRC-MS-92-109; CONF-920851-71
ON: DE92040203
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Conference
Resource Relation:
Conference: Spectrum 92: nuclear and hazardous waste management international topical meeting, Boise, ID (United States), 23-27 Aug 1992
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; FORMIC ACID; CHEMICAL REACTIONS; HIGH-LEVEL RADIOACTIVE WASTES; VITRIFICATION; HYDROGEN; SYNTHESIS; METALS; HAZARDOUS MATERIALS; RADIOACTIVE WASTE PROCESSING; SAVANNAH RIVER PLANT; SLUDGES; CARBOXYLIC ACIDS; ELEMENTS; MANAGEMENT; MATERIALS; MONOCARBOXYLIC ACIDS; NATIONAL ORGANIZATIONS; NONMETALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; PROCESSING; RADIOACTIVE MATERIALS; RADIOACTIVE WASTE MANAGEMENT; RADIOACTIVE WASTES; US AEC; US DOE; US ERDA; US ORGANIZATIONS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; 052001* - Nuclear Fuels- Waste Processing

Citation Formats

Ha, B C, Ferrara, D M, and Bibler, N E. Hydrogen production during processing of radioactive sludge containing noble metals. United States: N. p., 1992. Web.
Ha, B C, Ferrara, D M, & Bibler, N E. Hydrogen production during processing of radioactive sludge containing noble metals. United States.
Ha, B C, Ferrara, D M, and Bibler, N E. 1992. "Hydrogen production during processing of radioactive sludge containing noble metals". United States. https://www.osti.gov/servlets/purl/7077242.
@article{osti_7077242,
title = {Hydrogen production during processing of radioactive sludge containing noble metals},
author = {Ha, B C and Ferrara, D M and Bibler, N E},
abstractNote = {Hydrogen was produced when radioactive sludge from Savannah River Site radioactive waste containing noble metals was reacted with formic acid. This will occur in a process tank in the Defense Waste Facility at SRS when waste is vitrified. Radioactive sludges from four tanks were tested in a lab-scale apparatus. Maximum hydrogen generation rates varied from 5 {times}10{sup {minus}7} g H{sub 2}/hr/g of sludge from the least reactive sludge (from Waste Tank 51) to 2 {times}10{sup {minus}4} g H{sub 2}/hr/g of sludge from the most reactive sludge (from Waste Tank 11). The time required for the hydrogen generation to reach a maximum varied from 4.1 to 25 hours. In addition to hydrogen, carbon dioxide and nitrous oxide were produced and the pH of the reaction slurry increased. In all cases, the carbon dioxide and nitrous oxide were generated before the hydrogen. The results are in agreement with large-scale studies using simulated sludges.},
doi = {},
url = {https://www.osti.gov/biblio/7077242}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}

Conference:
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