Immobilization of iodine in concrete

Patent · Tue Apr 12 00:00:00 EST 1977

OSTI ID:862805

Clark, Walter E ^[1]; Thompson, Clarence T ^[1]

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1. Oak Ridge, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 4017417
• OSTI ID: 862805
• Country of Publication: United States
• Language: English

Related Subjects

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/