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Mercury removal from aqueous process streams

Author
Tharin, D. W.
Published
United States : [publisher not identified], 1974.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1974.
Physical Description
microfiche : negative ; 11 x 15 cm

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Summary
A simple method for removing mercury from aqueous process streams has been developed. The system consists of a column packed with finely ground vulcanized rubber preceded by a liquid cyclone separator. In one test, a pilot- scale packed bed containing finely ground tire rubber produced an effluent having < 10 ppb mercury for 170 bed volumes throughput, and < 100 ppb for over 600 bed volumes. Feed solution contained 1800 to 11,000 ppb mercury in a dissolved or colloidal state. In batch laboratory tests, mercury was reduced from 750 ppb to less than 5 ppb in five minutes at 70 deg C. The ability of rubber to capture mercury in almost any physical or chemical form over a wide range of pH and concentration provides an economical method for cleaning up waste effluent from many industrial sources. This process uses one waste product to control another and at a cost below that of previously described processes. The use of discarded tire rubber to absorb mercury may have wide application. (auth)
Report Numbers
DP-1343
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: AT(07-2)-1
NSA number: NSA-29-024092
OSTI Identifier 4333472
Research organization: Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.
View MARC record | catkey: 45073331