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Title: Retrieval of underground storage tank wastes: The Hanford challenge

Conference ·
OSTI ID:10194877

Approximately 140,000 m{sup 3} (37 Mgal) of waste material now resides in 149 SSTs single-shell tanks. These tanks are of an early design that consists of a carbon-steel liner surrounded by a reinforced structural concrete shell. Originally designed for a 20-year life, the first of those constructed are surpassing that expectation. Many have lost confinement integrity, and leaks to the environment have been detected. These wastes present a significant recovery challenge. The goal is to develop and field retrieval systems with the capability to remove wastes from these tanks and transfer those wastes for further downstream processing. The application of existing technologies has been the foundation of the retrieval strategy. However the aggressive schedules and complexity of the wastes to be recovered have required the search for and the development of more advanced technologies. This paper discusses the long-term strategy that has been developed to support the waste retrieval efforts of the Tank Waste Remediation System program.

Research Organization:
Westinghouse Hanford Co., Richland, WA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC06-87RL10930
OSTI ID:
10194877
Report Number(s):
WHC-SA-2449; CONF-950232-13; ON: DE95003046; BR: 35AF11201/35AF11202
Resource Relation:
Conference: 6. American Nuclear Society meeting on robotics and remote systems,Monterey, CA (United States),5-10 Feb 1995; Other Information: PBD: Oct 1994
Country of Publication:
United States
Language:
English