Continuous-flow stirred-tank reactor 20-L demonstration test: Final report

Lee, D.D. ; Collins, J.L.

Oak Ridge National Laboratory

关键词: Uranium;    Radioactive Waste Facilities;    Storage Facilities;    Remedial Action;    Radioactive Waste;   

DOI  :  10.2172/752984
RP-ID  :  ORNL/TM-1999/234
RP-ID  :  AC05-00OR22725
RP-ID  :  752984

美国|英语

来源: UNT Digital Library

【 摘 要 】

One of the proposed methods of removing the cesium, strontium, and transuranics from the radioactive waste storage tanks at Savannah River is the small-tank tetraphenylborate (TPB) precipitation process. A two-reactor-in-series (15-L working volume each) continuous-flow stirred-tank reactor (CSTR) system was designed, constructed, and installed in a hot cell to test the Savannah River process. The system also includes two cross-flow filtration systems to concentrate and wash the slurry produced in the process, which contains the bulk of radioactivity from the supernatant processed through the system. Installation, operational readiness reviews, and system preparation and testing were completed. The first test using the filtration systems, two CSTRs, and the slurry concentration system was conducted over a 61-h period with design removal of Cs, Sr, and U achieved. With the successful completion of Test 1a, the following tests, 1b and 1c, were not required.