Decontamination Experience in Ontario Hydro
This paper describes the decontamination of a Bruce Nuclear Generating Station heat exchanger. The heat exchanger, tubed with Incoloy-800 was contaminated with both neutron activated corrosion products and fission products. Sequential decontaminations using the CANDECON process, followed by alkaline permanganate (AP) and Decon-Turco 4521A, were used. Decontamination factors of between 8 to 12 and 10 to 50 were achieved on the tube bundle and tubesheet, respectively. The cost effectiveness of these and their effects on system materials will be discussed.
KeywordsHeat Exchanger Fission Product Tube Bundle Shell Side Decontamination Factor
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