Affinity of charcoals for different forms of radioactive organic iodine
Journal article, 2018

During a serious nuclear reactor accident a large fraction of the radioactive iodine in the fuel can escape from the core and subsequently from the plant. While the noble gases in reactor fuel are more mobile than iodine, the iodine is often of greater concern as its chemistry and biology causes it to be more radiotoxic. Iodine has the potential to be re-concentrated in vivo in the thyroid. Filters containing charcoals are used both under normal operating conditions and during emergencies to retain iodine species, they are used in environmental sampling to estimate radioactive iodine and in respiratory protection systems such as air purifying filter respirators. During a nuclear accident iodine can exist in many forms. As the formation of organic iodine compounds other than methyl iodide has been observed in nuclear plants it can be reasoned that a failure of a charcoal to retain other organoiodines than methyl iodide could have adverse consequences. In this paper, the ability of different charcoals to capture various forms of radioactive organic iodine compounds has been explored. Besides elemental iodine used as reference methyl, chloromethyl, ethyl and isopropyl iodides have been studied together with iodoacetylene.

Author

Emma Aneheim

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Nuclear Chemistry

Diana Bernin

Swedish NMR Centre at the University of Gothenburg

Mark Foreman

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Nuclear Chemistry

Nuclear Engineering and Design

0029-5493 (ISSN)

Vol. 328 228-240

Subject Categories

Botany

Other Earth and Related Environmental Sciences

Environmental Sciences

DOI

10.1016/j.nucengdes.2018.01.007

More information

Latest update

1/30/2018