Tank Waste Transport Stability: Summary of Slurry and Salt-Solution Studies for FY 2001

Welch, T.D.

Oak Ridge National Laboratory

关键词: Evaporators;    Pipelines;    Recommendations;    Plugging;    Wastes;   

DOI  :  10.2172/814383
RP-ID  :  ORNL/TM-2001/197
RP-ID  :  AC05-00OR22725
RP-ID  :  814383

美国|英语

来源: UNT Digital Library

【 摘 要 】

Despite over 50 years of experience in transporting radioactive tank wastes to and from equipment and tanks at the Department of Energy's Hanford, Savannah River, and Oak Ridge sites, waste slurry transfer pipelines and process piping become plugged on occasion. At Hanford, several tank farm pipelines are no longer in service because of plugs. At Savannah River, solid deposits in the outlet line of the 2H evaporator have resulted in an unplanned extended downtime. Although waste transfer criteria and guidelines intended to prevent pipeline plugging are in place, they are not always adequate. To avoid pipeline plugging in the future, other factors that are not currently embodied in the transfer criteria may need to be considered. The work summarized here is being conducted to develop a better understanding of the chemical and waste flow dynamics during waste transfer. The goal is to eliminate pipeline plugs by improving analysis and engineering tools in the field that incorporate this understanding.