DEVELOPMENT OF AGENTS AND PROCEDURES FOR DECONTAMINATION OF THE YANKEE REACTOR PRIMARY COOLANT SYSTEM

Technical Report · Sun Mar 01 04:00:00 EST 1959

OSTI ID:4237865

Watkins, R M

Developments relative to decontamination achieved under the Yankee Reasearch and Development program are reported. The decontamination of a large test loop which had been used to conduct corrosion rate studies for the Yankee reactor program is described. The basic permanganate-citrate decontamination procedure suggested for application in Yankee reactor primary system cleanup was used. A study of the chemistry of this decontamination operation is presented, together with conclusions pertaining to the effectiveness of the solutions under the conditions studied. In an attempt to further improve the efficiency of the procedure, an additional series of static and dynamic tests was performcd using contaminated sections of stainless steel tubing from the original SlW steam generator. Survival variables in the process (reagent composition, contact time, temperature, and flow velocity) were studied. The changes in decontamination efficiency produced by these variations are discussed and compared with results obtained throughthe use of similar procedures. Based on the observations made, conclusions are drawn concerning the optimum conditions for this cleanup process, a new set of suggested basic permanganate-citrate decontamination instructions is presented, and recommendations are made concerning future studies involving this procedure. (auth)

• Research Organization: Westinghouse Electric Corp. Atomic Power Dept., Pittsburgh
• NSA Number: NSA-13-015790
• OSTI ID: 4237865
• Report Number(s): YAEC-117
• Country of Publication: United States
• Language: English

Related Subjects

CHEMICAL REACTIONS
CITRIC ACID
CLEANING
COMPOUNDS
CONTAMINATION
COOLANT LOOPS
CORROSION
DECONTAMINATION
EFFICIENCY
FLUID FLOW
GENERATORS
MANGANESE OXIDES
PERMANGANATES
POWER PLANTS
REACTION KINETICS
REACTORS
SOLUTIONS
STAINLESS STEELS
STEAM
TEMPERATURE
TESTING
TUBES
VARIATIONS
VELOCITY
YAEC