Method and device for removing a non-aqueous phase liquid from a groundwater system

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874330

Looney, Brian B ^[1]; Rossabi, Joseph ^[1]; Riha, Brian D ^[2]

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1. Aiken, SC
2. Augusta, GA

A device for removing a non-aqueous phase liquid from a groundwater system includes a generally cylindrical push-rod defining an internal recess therein. The push-rod includes first and second end portions and an external liquid collection surface. A liquid collection member is detachably connected to the push-rod at one of the first and second end portions thereof. The method of the present invention for removing a non-aqueous phase liquid from a contaminated groundwater system includes providing a lance including an external hydrophobic liquid collection surface, an internal recess, and a collection chamber at the bottom end thereof. The lance is extended into the groundwater system such that the top end thereof remains above the ground surface. The liquid is then allowed to collect on the liquid collection surface, and flow downwardly by gravity into the collection chamber to be pumped upwardly through the internal recess in the lance.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• DOE Contract Number: AC09-89SR18035
• Assignee: The United States of America as represented by the United States Department (Washington, DC)
• Patent Number(s): US 6367563
• OSTI ID: 874330
• Country of Publication: United States
• Language: English

Related Subjects

method
device
removing
non-aqueous
phase
liquid
groundwater
cylindrical
push-rod
defining
internal
recess
portions
external
collection
surface
detachably
connected
contaminated
providing
lance
including
hydrophobic
chamber
bottom
extended
top
remains
ground
allowed
collect
flow
downwardly
gravity
pumped
upwardly
collection surface
phase liquid
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