Extraction of pollutants from underground water
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United States of America Patent
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Sep 7, 2004
Grant Date -
Aug 7, 2003
app pub date -
Feb 5, 2002
filing date -
Feb 5, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Pollutants are extracted from sub-surface water using an aqueous solution of cyclodextrin and a vertical circulating well. Complexes of the pollutant and cyclodextrin are recovered from the bottom of the well. When the pollutant is volatile, the complexes are separated into pollutant and cyclodextrin by air stripping.
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