Hydraulic and earth engineering – Earth treatment or control
Reexamination Certificate
2008-01-11
2010-12-07
Mayo-Pinnock, Tara (Department: 3671)
Hydraulic and earth engineering
Earth treatment or control
C166S077100, C166S270100
Reexamination Certificate
active
07845883
ABSTRACT:
A method and system for remediation of a contaminated subsurface area. The method comprises an infiltration operation in which a surfactant containing a fluorescent dye is injected to various depths in the contaminated area. The surfactant dye may be injected using a gravity feed process or pressure injection. Soil samples are taken at various distances from the injection point. The soil samples are analyzed to determine the radius of influence of the surfactant. Flow rates, flow volumes, and flow paths of the surfactant are determined from the soil samples. A remediation surfactant is injected to encapsulate liquid hydrocarbons in the contaminated area. The contaminant is then extracted from the area using a vacuum extraction system. The extraction system comprises flexible tubing inserted through a port in a well-head cap. The tubing is inserted to an appropriate depth to maintain a predetermined vacuum pressure.
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Atkinson Deanna R.
Siler, III Joel M.
Mayo-Pinnock Tara
Oklahoma Environmental, Inc.
Tomlinson Rust McKinstry Grable
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