TMI-2 purification demineralizer resin study

Technical Report · Tue May 01 04:00:00 EDT 1984

DOI:https://doi.org/10.2172/6697929· OSTI ID:6697929

Thompson, J D; Osterhoudt, T R

Study of the Makeup and Purification System demineralizers at TMI-2 has established that fuel quantities in the vessels are low, precluding criticality, that the high radioactive cesium concentration on the demineralizer resins can be chemically removed, and that the demineralizer resins can probably be removed from the vessels by sluicing through existing plant piping. Radiation measurements from outside the demineralizers establishing that there is between 1.5 and 5.1 (probably 3.3) lb of fuel in the A vessel and less than that amount in the B vessel. Dose rates up to 2780 R per hour were measured on contact with the A demineralizer. Remote visual observation of the A demineralizer showed a crystalline crust overlaying amber-colored resins. The cesium activity in solid resin samples ranged from 220 to 16,900 ..mu..Ci/g. Based on this information, researchers concluded that the resins cannot be removed through the normal pathway in their present condition. Studies do show that the resins will withstand chemical processing designed to rinse and elute cesium from the resins. The process developed should work on the TMI-2 resins.

• Research Organization: EG and G Idaho, Inc., Idaho Falls (USA); GPU Nuclear Corp., Middletown, PA (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 6697929
• Report Number(s): GEND-INF-013; ON: DE84014736
• Country of Publication: United States
• Language: English

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