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Title: Immobilization of iodine in concrete

Abstract

A method for immobilizing fission product radioactive iodine recovered from irradiated nuclear fuel comprises combining material comprising water, Portland cement and about 3-20 wt. % iodine as Ba(IO.sub.3).sub.2 to provide a fluid mixture and allowing the fluid mixture to harden, said Ba(IO.sub.3).sub.2 comprising said radioactive iodine. An article for solid waste disposal comprises concrete prepared by this method. BACKGROUND OF THE INVENTION This invention was made in the course of, or under a contract with the Energy Research and Development Administration. It relates in general to reactor waste solidification and more specifically to the immobilization of fission product radioactive iodine recovered from irradiated nuclear fuel for underground storage.

Inventors:
 [1];  [1]
  1. (Oak Ridge, TN)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
862805
Patent Number(s):
US 4017417
Assignee:
United States of America as represented by United States Energy (Washington, DC) ORNL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
immobilization; iodine; concrete; method; immobilizing; fission; product; radioactive; recovered; irradiated; nuclear; fuel; comprises; combining; material; comprising; water; portland; cement; 3-20; wt; provide; fluid; mixture; allowing; harden; article; solid; waste; disposal; prepared; background; course; contract; energy; administration; relates; reactor; solidification; specifically; underground; storage; comprising water; portland cement; radioactive iodine; waste disposal; irradiated nuclear; fission product; material comprising; nuclear fuel; solid waste; fluid mixture; reactor waste; underground storage; waste solidification; comprises combining; /588/106/976/

Citation Formats

Clark, Walter E., and Thompson, Clarence T. Immobilization of iodine in concrete. United States: N. p., 1977. Web.
Clark, Walter E., & Thompson, Clarence T. Immobilization of iodine in concrete. United States.
Clark, Walter E., and Thompson, Clarence T. 1977. "Immobilization of iodine in concrete". United States. doi:. https://www.osti.gov/servlets/purl/862805.
@article{osti_862805,
title = {Immobilization of iodine in concrete},
author = {Clark, Walter E. and Thompson, Clarence T.},
abstractNote = {A method for immobilizing fission product radioactive iodine recovered from irradiated nuclear fuel comprises combining material comprising water, Portland cement and about 3-20 wt. % iodine as Ba(IO.sub.3).sub.2 to provide a fluid mixture and allowing the fluid mixture to harden, said Ba(IO.sub.3).sub.2 comprising said radioactive iodine. An article for solid waste disposal comprises concrete prepared by this method. BACKGROUND OF THE INVENTION This invention was made in the course of, or under a contract with the Energy Research and Development Administration. It relates in general to reactor waste solidification and more specifically to the immobilization of fission product radioactive iodine recovered from irradiated nuclear fuel for underground storage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1977,
month = 4
}

Patent:

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  • A method for immobilizing fission product radioactive iodine recovered from irradiated nuclear fuel comprises combining material comprising water, Portland cement and about 3 to 20 wt percent iodine as Ba(IO/sub 3/)/sub 2/ to provide a fluid mixture and allowing the fluid mixture to harden, said Ba(IO/sub 3/)/sub 2/ comprising said radioactive iodine. An article for solid waste disposal comprises concrete prepared by this method. 10 claims, 2 figures.
  • A down-the-hole device is described for breaking rock, concrete, and reinforce concrete by pulsewise high liquid pressure. The device is lowered into a hole predrilled in the material to be broken and prefilled with a liquid. This known device includes a housing with an internal cavity, having lateral apertures through which this internal cavity communicates with the hole; the housing includes a closed chamber adapted to accommodate therein a charge of explosive. The chamber is separated from the internal cavity by a sealing partition made of an elastomeric material, the chamber being adapted to communicate with the internal cavity asmore » a result of the explosion of the explosive charge, when the gases produced break the partition and generate pulsewise pressure, exerted by the liquid upon the walls of the hole. (3 claims)« less
  • This patent describes a process for using siliceous sludge (filter cake), obtained by precipitation of silica from silica-rich geothermal brine, to make a concrete material (geocrete). The process includes combining the sludge with a cementitious material, such as Portland cement and/or flyash and activating the cementitious material with an activating media. When water is used as the activating media, the sludge is preferably dewatered and the residual water content is determined, the entrapped brine adding to the water content of the mixture. The dry weight ratio of sludge to cementing material may be greater than about 3:1 and ratios asmore » high as about 12:1 can be used to produce high strength geocrete.« less
  • A method for producing quick setting concrete is provided comprising mixing a concrete dry mixture with carbonate solution to create a slurry, and allowing the slurry to cure. The invention also provides for a quick setting concrete having a predetermined proportion of CaCO{sub 3} of between 5 and 23 weight percent of the entire concrete mixture, and whereby the concrete has a compression strength of approximately 4,000 pounds per square inch (psi) within 24 hours after pouring. 2 figs.
  • This invention relates to a method for producing concrete, and more specifically, this invention relates to a method for producing quick-setting concrete while simultaneously minimizing the release of carbon dioxide to the atmosphere, said release of carbon dioxide inherent in cement production. A method for producing quick setting concrete comprises hydrating a concrete dry mixture with carbonate solution to create a slurry, and allowing the slurry to cure. The invention also provides for a quick setting concrete having a predetermined proportion of CaCO{sub 3} of between 5 and 23 weight percent of the entire concrete mixture, and whereby the concretemore » has a compression strength of approximately 4,000 pounds per square inch (psi) within 24 hours after pouring.« less