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324 and 325 Building Hot Cell Cleanout Program: Air lock cover block refurbishment

Description: The high-density concrete cover blocks shielding the pipe trench in the hot-cell air lock of the 324 Building Radiochemical Engineering Cells had accumulated fixed radioactivity ranging from 1100 to 22, 000 mrad/hr. A corresponding increase in the radiation exposure to personnel entering the air lock, together with ALARA concerns, led to the removal of the contaminated concrete surface with a hydraulic spaller and the emplacement of a stainless steel covering over a layer of grout. The resultan… more
Date: May 1, 1989
Creator: Katayama, Y.B.; Holton, L.K. Jr. & Gale, R.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternative filtration testing program: Pre-evaluation of test results

Description: Based on results of testing eight solids removal technologies and one pretreatment option, it is recommended that a centrifugal ultrafilter and polymeric ultrafilter undergo further testing as possible alternatives to the Norton Ceramic filters. Deep bed filtration should be considered as a third alternative, if a backwashable cartridge filter is shown to be inefficient in separate testing.
Date: September 28, 1990
Creator: Georgeton, G.K. & Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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