Chemical decontamination at Carolina Power and Light Company's Brunswick Nuclear Project

Conference · Fri Jun 01 04:00:00 EDT 1990 · Transactions of the American Nuclear Society; (USA)

OSTI ID:6373101

Hamilton, S K ^[1]

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1. Carolina Power and Light Co., Southport, NC (USA)

Chemical decontamination of recirculation piping systems has become a routine method for source term reduction in vintage boiling water reactors (BWRs). Carolina Power and Light Company's (CP and L's) Brunswick Nuclear Project (BNP) in early 1985, started reviewing the possibility of dilute chemical decontamination of the recirculation system piping as a method of exposure reduction. Since that time, three recirculation decontamination projects have been completed successfully, saving an estimated 2,573 person-rem. After two fuel cycles of operation in unit 2, dose rates increased to only 48% of the pre-decontamination level, saving additional exposure in subsequent refueling outages. Three areas make recirculation system decontamination at BNP unique: (1) application of decontamination reagent, with fuel in the reactor vessel, using plugs and system valves for isolation; (2) use of a regenerative process (PNS CITROX-APCITROX), as opposed to the more popular nonregenerative low-oxidation-state-metal-ion (LOMI) process; and (3) stabilization of the generated waste utilizing high-integrity containers (HICs). The emphasis of this paper is on these three areas.

• OSTI ID: 6373101
• Report Number(s): CONF-900608--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (USA) Journal Volume: 61
• Country of Publication: United States
• Language: English

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