Life Extension of Aging High-Level Waste Tanks.

Bryson, D. ; Callahan, V. ; Bryan, W. ; Ostrom, M. ; Berman, H.

Technical Information Center Oak Ridge Tennessee

关键词: Service life;    Storage tanks;    Hanford reservation;    Corrosion;    High level radioactive wastes;   

RP-ID  :  DE2003807655

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The Double Shell Tanks (DSTs) play a critical role in the Hanford High-Level Waste Treatment Complex, and therefore activities are underway to protect and better understand these tanks. The DST Life Extension Program is focused on both tank life extension and on evaluation of tank integrity. Tank life extension activities focus on understanding tank failure modes and have produced key chemistry and operations controls to minimize tank corrosion and extend useful tank life. Tank integrity program activities have developed and applied key technologies to evaluate the condition of the tank structure and predict useful tank life. Program results to date indicate that DST useful life can be extended well beyond the original design life and allow the existing tanks to till a critical function within the Hanford High-Level Waste Treatment Complex. In addition the tank life may now be more reliably predicted, facilitating improved planning for the use and possible future replacement of these tanks.