MICHAEL HECKMAN CORBIN
Engineers in Downingtown, PA
License number
Pennsylvania PE027959E
Category
Engineers
Type
Professional Engineer
Address
Address
Downingtown, PA 19335
Professional information
Method Of In Situ Decontamination
US Patent:
5106232, Apr 21, 1992
Filed:
Aug 10, 1990
Appl. No.:
7/565515
Inventors:
Nancy Metzer - Exton PA
Michael Corbin - Downingtown PA
Michael Corbin - Downingtown PA
Assignee:
Roy F. Weston, Inc. - West Chester PA
International Classification:
B09B 100
US Classification:
405128
Abstract:
Decontamination is provided by establishing a borehole into the vadose zone, introducing porous fill material into the borehole, positioning a hollow conduit into the borehole, and applying suction to the conduit and the borehole to reduce pressure and cause air and contaminant vapors to move through the vadose zone and into the borehole and through the porous fill material contained therein.
Method Of In Situ Decontamination
US Patent:
5160217, Nov 3, 1992
Filed:
Apr 19, 1991
Appl. No.:
7/687983
Inventors:
Nancy Metzer - Exton PA
Michael Corbin - Downingtown PA
Michael Corbin - Downingtown PA
Assignee:
Roy F. Weston, Inc. - West Chester PA
International Classification:
B09B 100
US Classification:
405128
Abstract:
A method of removing volatile contaminants from a layer of contaminant lying on the top of a water table and in an unsaturated zone including opening a hole into the unsaturated zone and downwardly to at least the top of the layer of contaminant, positioning the end of a solid, air impermeable hollow pipe into the hole and adjacent to air permeable fill material, establishing an airtight seal around the pipe at the hole, reducing the pressure in the pipe in the hole to cause air and contaminant vapors to flow along the layer of contaminant and through the unsaturated zone and into the hole and through the air permeable fill material, and removing air and contaminant vapors from the hole through the pipe.