Chemical decontamination experience at Commonwealth Edison nuclear power plants: Final report

Technical Report · Thu Sep 01 04:00:00 EDT 1988

OSTI ID:6712725

Beaman, T A; Smee, J L

A total of 23 dilute chemical decontaminations and one full system decontamination using a concentrated solvent have been performed at Commonwealth Edison's BWR nuclear stations since 1983. Systems that have been decontaminated include the reactor recirculation system, the reactor water cleanup system, a fuel pool cleanup system, and two isolated fuel assemblies. As a result, CECo has gained a considerable amount of experience and insight as to how decontaminations are best performed, and the results that can be expected. This experience is presented in this report, mainly from the point of view of a recirculation system decontamination. Information on 23 separate topics is presented under the general headings of administrative, chemical, and engineering aspects of decontamination. Some of the specific items discussed include: bid specification and evaluation, critical path time, utility support personnel, recontamination, the effect of hydrogen water chemistry, the effectiveness of repetitive decontaminations, corrosion, equipment, drawings, procedures, operations and waste handling. A brief review of the recent LOMI decontamination at the LaSalle station is presented. This was CECo's first experience with decontamination of a BWR recirculation system that did not have a cross-tie valve in the ring header. 20 refs., 2 figs., 3 tabs.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (USA); Niagara Technical Consultants, Niagara Falls, NY (USA)
• OSTI ID: 6712725
• Report Number(s): EPRI-NP-6023; ON: TI89002436
• 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
BWR TYPE REACTORS
CHEMICAL REACTIONS
CHEMISTRY
CLEANING
COOLING SYSTEMS
CORROSION
DECONTAMINATION
ENERGY SYSTEMS
FUEL ASSEMBLIES
MANAGEMENT
PLANNING
PROCESSING
RADIOACTIVE WASTE PROCESSING
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
SOLVENTS
WASTE MANAGEMENT
WASTE PROCESSING
WATER CHEMISTRY
WATER COOLED REACTORS
WATER MODERATED REACTORS