Effectiveness and safety aspects of selected decontamination methods for LWRS

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:7254129

Duce, S W

Use of chemical reagent systems to remove oxide films in primary coolant system piping was widely performed in US light water reactors in 1984. The principle application of chemical decontamination was in boiling water reactors primary coolant recirculation systems and reactor water cleanup systems prior to inservice inspection and repair of system welds, or major system pipe replacement. A research study, funded by the Nuclear Regulatory Commission (NRC) and performed by EG and G Idaho, Inc., examined the effectiveness of chemical decontamination methods to reduce total man-rem expended to perform the inspection or replacement tasks, and waste volume going to low level waste burial sites. Items evaluated were (a) methods used to determine decontamination factors (DFs), (b) DFs obtained, (c) man-rem savings, (d) waste forms generated, (e) man-rem expended in performing the decontamination, (f) overall operations (i.e., problems and lessons learned, and (g) other items of information that would assist the NRC in their review processes. This paper presents information and results on (a) methods used for determining DFs, (b) actual DFs obtained with chemical decontamination methods, (c) waste forms and volumes generated, and (d) resultant man-rem savings.

• Research Organization: EG and G Idaho, Inc., Idaho Falls (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 7254129
• Report Number(s): EGG-M-13185; CONF-8505103-8; ON: TI87001443
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100 -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
BWR TYPE REACTORS
CLEANING
COOLING SYSTEMS
DECONTAMINATION
ENERGY SYSTEMS
PIPES
PRIMARY COOLANT CIRCUITS
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
SAFETY
WATER COOLED REACTORS
WATER MODERATED REACTORS