FY 2000 Saltcake Dissolution and Feed Stability Workshop

Hunt, R. D. ; McGinnis, C. P. ; Weber, C. F. ; Welch, T. D. ; Jewett, J. R.

Oak Ridge National Laboratory

关键词: Process Control;    Radioactive Wastes;    Dissolution;    Wastes;    Contractors;   

DOI  :  10.2172/769369
RP-ID  :  ORNL/TM-2000/202
RP-ID  :  AC05-00OR22725
RP-ID  :  769369

美国|英语

来源: UNT Digital Library

【 摘 要 】

The Tanks Focus Area (TFA) continues to work closely with the Office of River Protection (ORP) to better understand the chemistry involved with the retrieval, transport, and pretreatment of nuclear wastes at Hanford. Since a private contractor is currently responsible for the pretreatment and immobilization activities in this remediation effort, the TFA has concentrated on saltcake dissolution and waste transport at the request of the ORP. Researchers at Hanford have performed a series of dissolution experiments on actual saltcake samples. Staff members at Mississippi State University (MSU) continue to model the dissolution results with the Environmental Simulation Program (ESP), which is used extensively by ORP personnel. Several ways to improve the predictive capabilities of the ESP were identified. Since several transfer lines at Hanford have become plugged, TFA tasks at AEA Technologies, Florida International University (FIU), MSU, and Oak Ridge National Laboratory (ORNL) are investigating the behavior of the supernatants and slurries during transport. A combination of experimental and theoretical techniques is used to study the transport chemistry. This effort is expected to develop process control tools for waste transfer. The results from these TFA tasks were presented to ORP personnel during the FY 2000 Saltcake Dissolution and Feed Stability Workshop, which was held on May 16-17 in Richland, Washington. The minutes from this workshop are provided in this report.