Corrosion evaluation of ICPP high-level liquid waste storage tanks

Technical Report · Sat Apr 01 04:00:00 EST 1989

DOI:https://doi.org/10.2172/6126092· OSTI ID:6126092

Zimmerman, C. A.

Corrosion test coupons removed from the high level liquid waste (HLLW) tanks at the Idaho chemical Processing Plant (ICPP) during a 1987-1988 coupon recovery operation have been evaluated. The data indicate that the fluoride containing first cycle raffinates are the most corrosive solutions with an average general corrosion rate of 2.9 /times/ 10/sup /minus/2/ mil per year. The average general corrosion rate for non-fluoride first cycle waste solution is 1.3 /times/ 10/sup /minus/2/ mil per year. Sodium wastes (principally PEW bottoms) are much less corrosive with an average general corrosion rate of 6.6 /times/ 10/sup /minus/4/ mil per year. These corrosion rates indicate a very low general corrosion rate for the internal surfaces of the austenitic stainless steel tanks. The corrosion test coupons in the HLLW vessels at this time do not indicate any localized corrosion such as pitting or heat affected weld zone attack. New coupon assemblies were installed in the HLLW tanks which will be exposed on the bottom of most tanks. 4 refs., 7 figs., 5 tabs.

• Research Organization: Westinghouse Idaho Nuclear Co., Inc., Idaho Falls, ID (USA)
• DOE Contract Number: AC07-84ID12435
• OSTI ID: 6126092
• Report Number(s): WINCO-1064; ON: DE89014406
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALKALI METAL COMPOUNDS
CHEMICAL EFFLUENTS
CHEMICAL REACTIONS
CONTAINERS
CORROSION
CORROSION RESISTANCE
CORROSIVE EFFECTS
FUEL REPROCESSING PLANTS
HIGH-LEVEL RADIOACTIVE WASTES
IDAHO CHEMICAL PROCESSING PLANT
MANAGEMENT
MATERIALS
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE STORAGE
RADIOACTIVE WASTES
SODIUM COMPOUNDS
STORAGE
TANKS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE STORAGE
WASTES