Method for treating vapors and liquids recovered from a subsurface remediation process
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United States of America Patent
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-
Feb 6, 2001
Grant Date -
N/A
app pub date -
Jan 29, 1999
filing date -
Jan 29, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A continuous process for removing organic contaminants from a subsurface formation. Including the steps of (a) injecting steam into the subsurface formation via an injection conduit, (b) removing a liquid stream from the subsurface formation via a liquid recovery conduit, (c) removing a vapor stream from the subsurface formation via a vapor recovery conduit, the vapor stream comprising both condensible vapors and non-condensible vapors, (d) combining the liquid stream and the vapor stream to create a combined stream and cooling the combined stream in a heat exchanger so that substantially all of the condensible vapors are condensed to condensed liquids, the condensed liquids being combined with the ground water liquid stream to form a combined liquid stream, and (e) separating the non-condensible vapors from the combined liquid stream.
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