Effectiveness and safety aspects of selected decontamination methods for LWRs

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:7242968

Duce, S W; Simpson, F B

During the years 1984 and 1985 in-situ chemical decontamination processes were applied extensively in boiling water reactor (BWR) primary coolant recirculation systems (PCRSs) to help facilitate system replacement or inservice inspections, and more limited in pressurized water reactor (PWR) steam generators to facilitate tube plugging or sleeving operations. During these two years four chemical decontamination processes were observed: CAN-DECON, LOMI, DOW NS-1 and PNS CITROX A at a total of nine different facilities, seven BWRs and two PWRs. These chemical decontaminations were performed to reduce the man-rem that would be received by the work force to perform the specified task(s). This paper presents information and results on: (1) base metal attack during the process application; (2) methods used to protect critical components; (3) activity removed; (4) man-rem savings; and (5) waste forms and volumes.

• Research Organization: EG and G Idaho, Inc., Idaho Falls (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 7242968
• Report Number(s): EGG-M-34786; CONF-8610135-6; ON: DE87002185
• Country of Publication: United States
• Language: English

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