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Title: Hydrogen control in the handling, shipping and storage of wet radioactive waste

Abstract

To ensure that flammable gas mixtures will not exist in canisters planned for the transport of TMI-2 core debris, Rockwell Hanford Operations conducted a demonstration test program to determine which catalysts and bed configurations would be acceptable and near optimum under wet conditions. These studies demonstrated the simplicity and effectiveness of catalytic recombination of hydrogen and oxygen, even under very wet conditions. The stoichiometric reaction of these gases in the container atmosphere maintains the minimum constituent (either hydrogen or oxygen) below 1%, and ensures that flammable mixtures (>4.1% H/sub 2/ and 5.0% O/sub 2/) will not be attained. The US Nuclear Regulatory Commission Office of Inspection and Enforcement (I and E) has established requirements for the shipment of waste materials subject to hydrogen gas generation. This I and E notice establishes a safe-shipping time period that is twice the expected shipping and handling period to ensure safety during shipment. Hydrogen and oxygen concentrations ''must be determined by tests and measurement or by analysis of a representative package.'' The concentration of hydrogen gas must be limited to 5% by volume or the concentration of oxygen gas must be limited to 5% by volume. This document is intended to convey the pertinentmore » information concerning the handling and shipping of wet radioactive wastes which resulted from the TMI-2 experience. It provides engineering tools, procedures, and precautions that are intended to ensure the safe handling, shipping and storage of wet radioactive wastes. A step-wise procedure is presented that permits the individual investigator to evaluate the potential for flammable gas generation, and to minimize potential hazards, with the intent of meeting the referenced NRC requirements. 21 refs., 10 figs., 6 tabs.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
OSTI Identifier:
6316573
Report Number(s):
RHO-WM-EV-9-P
ON: DE86005235
DOE Contract Number:  
AC06-77RL01030
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; HYDROGEN; CONTROL; G VALUE; RECOMBINATION; LIQUID WASTES; RADIOLYSIS; OXYGEN; RADIOACTIVE WASTE STORAGE; HAZARDS; RADIOACTIVE WASTES; MATERIALS HANDLING; TRANSPORT; CATALYSTS; US NRC; REGULATIONS; WASTE TRANSPORTATION; DEMONSTRATION PROGRAMS; FLAMMABILITY; OFF-GAS SYSTEMS; SAFETY ENGINEERING; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; CHEMISTRY; COMBUSTION PROPERTIES; DECOMPOSITION; ELEMENTS; ENGINEERING; MANAGEMENT; MATERIALS; NATIONAL ORGANIZATIONS; NONMETALS; RADIATION CHEMISTRY; RADIATION EFFECTS; RADIOACTIVE MATERIALS; STORAGE; US ORGANIZATIONS; WASTE MANAGEMENT; WASTE STORAGE; WASTES; 054000* - Nuclear Fuels- Health & Safety; 052002 - Nuclear Fuels- Waste Disposal & Storage; 050900 - Nuclear Fuels- Transport, Handling, & Storage

Citation Formats

Henrie, J.O., Flesher, D.J., Quinn, G.J., and Greenborg, J. Hydrogen control in the handling, shipping and storage of wet radioactive waste. United States: N. p., 1985. Web.
Henrie, J.O., Flesher, D.J., Quinn, G.J., & Greenborg, J. Hydrogen control in the handling, shipping and storage of wet radioactive waste. United States.
Henrie, J.O., Flesher, D.J., Quinn, G.J., and Greenborg, J. Sun . "Hydrogen control in the handling, shipping and storage of wet radioactive waste". United States.
@article{osti_6316573,
title = {Hydrogen control in the handling, shipping and storage of wet radioactive waste},
author = {Henrie, J.O. and Flesher, D.J. and Quinn, G.J. and Greenborg, J.},
abstractNote = {To ensure that flammable gas mixtures will not exist in canisters planned for the transport of TMI-2 core debris, Rockwell Hanford Operations conducted a demonstration test program to determine which catalysts and bed configurations would be acceptable and near optimum under wet conditions. These studies demonstrated the simplicity and effectiveness of catalytic recombination of hydrogen and oxygen, even under very wet conditions. The stoichiometric reaction of these gases in the container atmosphere maintains the minimum constituent (either hydrogen or oxygen) below 1%, and ensures that flammable mixtures (>4.1% H/sub 2/ and 5.0% O/sub 2/) will not be attained. The US Nuclear Regulatory Commission Office of Inspection and Enforcement (I and E) has established requirements for the shipment of waste materials subject to hydrogen gas generation. This I and E notice establishes a safe-shipping time period that is twice the expected shipping and handling period to ensure safety during shipment. Hydrogen and oxygen concentrations ''must be determined by tests and measurement or by analysis of a representative package.'' The concentration of hydrogen gas must be limited to 5% by volume or the concentration of oxygen gas must be limited to 5% by volume. This document is intended to convey the pertinent information concerning the handling and shipping of wet radioactive wastes which resulted from the TMI-2 experience. It provides engineering tools, procedures, and precautions that are intended to ensure the safe handling, shipping and storage of wet radioactive wastes. A step-wise procedure is presented that permits the individual investigator to evaluate the potential for flammable gas generation, and to minimize potential hazards, with the intent of meeting the referenced NRC requirements. 21 refs., 10 figs., 6 tabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {12}
}

Technical Report:
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