Cleaning and liquid contact with solids – Processes – Including regeneration – purification – recovery or separation...
Patent
1995-07-18
1999-01-05
El-Arini, Zeinab
Cleaning and liquid contact with solids
Processes
Including regeneration, purification, recovery or separation...
134 251, B08B 704
Patent
active
058556915
ABSTRACT:
A process for the recovery of heavy metals, and in particular, mercury from a heavy metal-contaminated soil, or the recovery of mercury from a mercury-contaminated material, wherein the particles containing the heavy metal or mercury are separated from soil or mercury-contaminated material by a hydraulic mineral separator. The process may additionally include pre-classification of the soil particles to form a sample having essentially constant soil particle size prior to separation in the mineral separator. The process provides a ready method for removal of mercury from mercury-contaminated materials or heavy metals from heavy metal contaminated soils which process can allow recovery of the mercury or heavy metal for re-use. Alternatively, the process provides a smaller volume of mercury- or heavy metal-contaminated soil or material to be treated.
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Mike Kuryluk, Nova Scotia Department of Environment Article, Nov. 1994.
The Nova Scotia Business Journal Article, Jan., 1994.
Currie John D.
Kenno Richard M.
Oram Peter G.
El-Arini Zeinab
Pioneer Licensing Inc.
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