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Title: Tritium waste control: October 1980-March 1981. [Catalytic exchange detritiation; fixation of aqueous tritiated wastes in polymer impregnated concrete]

Technical Report ·
OSTI ID:5913507

The Combined Electrolysis Catalytic Exchange (CECE) pilot system was operated for 88 days and processed over 500 liters of tritiated water. Two complete electrolysis systems, each using a General Electric Company solid polymer electrolyte (SPE) cell, have been built. One of these is being used for the 10 Ci/ml tritiated water test and the other as a control with nontritiated water. The first SPE failed after seven weeks of exposure to the 10 Ci/ml water. A new SPE was installed and has been operated for eight weeks without failure at 10 Ci/ml. Analyses for 10 types of impurities were made on each of 15 Effluent Recovery System (ERS) liquid waste samples. A pilot-scale system for removal of these impurities has been designed and is being built. Gas generation rates caused by radiolysis of tritium waste materials were determined for polymer and nonpolymer impregenated tritiated concrete, and fixated and nonfixated tritiated waste vacuum pump oil. The construction of the new addition to the liquid waste handling facility was completed. The inert-atmosphere gloveboxes and other equipment are being installed for the polystyrene impregnated, tritiated-concrete wastewater process. The study of tritium release from representative burial packages was continued. The two wastewater drums which have the highest tritium release (29.8 mCi and 98.2 mCi) also contain the highest amounts of tritium, originally 34,480 Ci and 52,128 Ci, respectively. The tritium release from the polymer-impregnated, tritiated concrete (PITC) and the control (non-PITC) remain too low to be illustrated on the current figures.

Research Organization:
Monsanto Research Corp., Miamisburg, OH (USA)
DOE Contract Number:
AC04-76DP00053
OSTI ID:
5913507
Report Number(s):
MLM-2844; ON: DE82002088; TRN: 82-000327
Country of Publication:
United States
Language:
English