Wells – With below and above ground modification
Patent
1991-07-15
1993-03-30
Dang, Hoang C.
Wells
With below and above ground modification
166 751, 166267, 166370, E21B 4334
Patent
active
051975416
ABSTRACT:
A process for two phase vacuum extraction of contaminants from the ground involves vacuum withdrawal of liquid and gaseous phases as a common stream, separation of the liquid and gaseous phases, and subsequent treatment of the separated liquid and gases to produce clean effluents. Two phase vacuum extraction employs a single vacuum generating device to remove contaminants in both the liquid stream and soil gases through a single well casing.
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Hess Ronald E.
Hooper Albert A.
Morrow Steven R.
Walker Dianne J.
Zimmerman Erich
Byorick Judith L.
Dang Hoang C.
Xerox Corporation
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