Process for two phase vacuum extraction of soil contaminants

Details Process for two phase vacuum extraction of soil contaminants Process for two phase vacuum extraction of soil contaminants

1989-09-27

1991-09-24

Dang, Hoang C.

Wells

Processes

Separating material entering well

166370, E21B 4300, E21B 4334

Patent

active

050506765

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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Air & Waste Management Association, "EPA Site Demonstration of the Terra Vac In Situ Vacuum Extraction Process in Groveland Massachusetts", by Mary K. Stinson, voo. 39, No. 8, pp. 1054-1062 (p. 1061 missing) (issue of Aug. 1989).
American Petroleum Institute, API Publication No. 4431, Jan. 1984, "Forces Venting to Remove Gasoline Vapor from a Large-Scale Model Aquifer".
J. Environ. Sci. Health, Paper No. A17(1), 31-44 (1982), "Venting for Removal of Hydrocarbon Vapors from Gasoline Contaminated Soil".

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