Method and apparatus for removing metal contamination from soil
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United States of America Patent
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Nov 14, 1995
Grant Date -
N/A
app pub date -
Aug 11, 1993
filing date -
Aug 11, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is a process and an apparatus for removing metal contamination from soil. In the method, the soil is treated to produce soil with a small particle size. The particulate soil is then separated into a coarse fraction and a fine fraction. The coarse fraction and the fine fraction are contacted with a leach solution in separate contacting zones to remove the metal contamination from the soil, the metal is removed from the leach solution and the leach solution recycled to the leaching zones.
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