Water chemistry control and decontamination experience with TEPCO BWR`s and the measures planned for the future

Conference · Wed Mar 01 00:00:00 EST 1995

OSTI ID:54662

Suzuki, N; Miyamaru, K ^[1]

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1. Tokyo Electric Power Co. (Japan)

The new TEPCO BWR`s are capable of having the occupational radiation exposure controlled successfully at a low level by selecting low cobalt steel, using corrosion-resistant steel, employing dual condensate polishing systems, and controlling Ni/Fe ratio during operation. The occupational radiation exposure of the old BWR`s, on the other hand, remains high though reduced substantially through the use of low cobalt replacement steel and the partial addition of a filter in the condensate polishing system. Currently under review is the overall decontamination procedure for the old BWR`s to find out to measures needed to reduce the amount of crud that is and has been carried over into the nuclear reactor. The current status of decontamination is reported below.

• Research Organization: US Nuclear Regulatory Commission (NRC), Washington, DC (United States). Div. of Regulatory Applications; Brookhaven National Lab. (BNL), Upton, NY (United States)
• OSTI ID: 54662
• Report Number(s): NUREG/CP-0143; BNL-NUREG-52440; CONF-940505-; ON: TI95008770; TRN: 95:012696
• Resource Relation: Conference: 3. international workshop on implementation of ALARA at nuclear power plants, Long Island, NY (United States), 8-11 May 1994; Other Information: PBD: Mar 1995; Related Information: Is Part Of Proceedings of the Third International Workshop on the implementation of ALARA at nuclear power plants; Khan, T.A. [comp.] [Brookhaven National Lab., Upton, NY (United States)]; Roecklein, A.K. [Nuclear Regulatory Commission, Washington, DC (United States). Div of Regulatory Applications]; PB: 810 p.
• Country of Publication: United States
• Language: English

Related Subjects

21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS
22 NUCLEAR REACTOR TECHNOLOGY
WATER CHEMISTRY
CONTROL
BWR TYPE REACTORS
DECONTAMINATION
ALARA
COBALT
CORROSION
FUKUSHIMA-1 REACTOR
FUKUSHIMA-2 REACTOR
FUKUSHIMA-3 REACTOR
FUKUSHIMA-4 REACTOR
FUKUSHIMA-5 REACTOR
FUKUSHIMA-6 REACTOR
FUKUSHIMA-II-1 REACTOR
FUKUSHIMA-II-2 REACTOR
FUKUSHIMA-II-3 REACTOR
FUKUSHIMA-II-4 REACTOR
KASHIWAZAKI-KARIWA-1 REACTOR
KASHIWAZAKI-KARIWA-2 REACTOR
KASHIWAZAKI-KARIWA-3 REACTOR
KASHIWAZAKI-KARIWA-4 REACTOR
KASHIWAZAKI-KARIWA-5 REACTOR
KASHIWAZAKI-KARIWA-6 REACTOR
KASHIWAZAKI-KARIWA-7 REACTOR
OCCUPATIONAL EXPOSURE