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Ion Exchange Processes for Removing Radioactive Contamination from Milk¹

Dairy Products Laboratory, Eastern Utilization Research and Development Division, USDA, Washington, D. C.

ABSTRACT

These studies on removing radioactive contamination from milk were carried on for the purpose of developing a feasible standby process for use in dairy plants in the event that radioactive fallout should reach hazardous levels. Current levels of all the radioactive contaminants are far below what is considered hazardous levels; Iodine-131 is essentially undetectable in all milk supplies. However, the remote possibility of an unforeseen nuclear reactor accident, or resumption of nuclear testing by any nation, would result in significant increases in fallout.

A fixed-bed column process for removing radiostrontium has received the most attention; commercial feasibility is more nearly established for its use than for other procedures, or for removal of other radionuclides.

¹ Invitational paper presented at the 59th Annual Meeting of the American Dairy Science Association, University of Arizona, Tucson, June, 1964.