Abstract
The US DOE'sHanford Site is the central facilities where the development of nuclear weapons had been made during the World War II and throughout the Cold War years thereafter.
There are 177 tanks to store the wastes produced from the Pu production facilities after extracting Pu from the irradiated U fuels. The constituents of the wastes are very complicated and there still remain highly radioactive nuclides. Not only liquid, but also sludges and solid wastes are remained within the tanks.
This is a brief summary on history and experiences at the Hanford Pu production facilities in general. In order to proceed the Hanford Tank Cleanup Operations, DOE has made the decision to privatize the Project Hanford Management Contract to Fluor Daniel and Tank Waste Remediation System to BNFL Inc. and Lockheed Martin in autumn 1996.
