Actions for Spray solidification of nuclear waste. [Calciner operation] [electronic resource].

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Spray solidification of nuclear waste. [Calciner operation] [electronic resource].

Published
Princeton, N.J. : Princeton University, 1976.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 103 : digital, PDF file
Additional Creators
Princeton University and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The spray calciner is a relatively simple machine. Operation is simple and is easily automated. Startup and shutdown can be performed in less than an hour. A wide variety of waste compositions and concentrations can be calcined under easily maintainable conditions. Spray calcination of high-level and mixed high- and intermediate-level liquid wastes has been demonstrated. Waste concentrations of from near infinite dilution to less than 225 liters per tonne of fuel are calcinable. Wastes have been calcined containing over 2M sodium. Feed concentration, composition, and flowrate can vary rapidly by over a factor of two without requiring operator action. Wastes containing mainly sodium cations can be spray calcined by addition of finely divided silica to the feedstock. A remotely replaceable atomizing nozzle has been developed for use in plant-scale equipment. Calciner capacity of over 75 l/h has been demonstrated in pilot-scale equipment. Sintered stainless steel filters are effective in deentraining over 99.9 percent of the solids that result from calcining the feedstock. The volume of recycle required from the effluent treatment system is very small. Vibrator action maintains the calcine holdup in the calciner at less than 1 kg. Successful remote operation and maintenance of a heated-wall spray calciner have been demonstrated while processing high-level waste. Radionuclide volatilization was acceptably low. (DLC)
Report Numbers
E 1.99:bnwl-2059
bnwl-2059
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
08/01/1976.
"bnwl-2059"
Blair, H.T.; Bonner, W.F.; Romero, L.S.
Funding Information
E(11-1)-3073
View MARC record | catkey: 14420258