Title:
PROCESS FOR REMOVING CONTAMINANTS AND APPARATUS THEREFOR
Document Type and Number:
Japanese Patent JP3884793
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a process for removing contaminants from sheet, groundwater and soil and apparatus therefor.
SOLUTION: A borehole is provided in the contaminated area, a perforated riser pipe 44 is placed in the borehole, a vacuum extraction pipe 30 with an opening arranged inside of the perforated riser pipe 44 is instaled within the perforated riser pipe 44, and a packing 61 is instaled in a portion of the annular space between the vacuum extraction pipe and the perforated riser pipe 44. And gases and liquid are introduced from the subsurface to the packing 61 by applying a vacuum to the vacuum extraction pipe 30, and the gases and the liquid are transported to the surface as a common stream, and a stream which is primarily liquid and a stream which is primarily gaseous are formed, and contaminants are removed from at least one of the liquid stream and the gaseous stream.
Inventors:
Richard A. Williams
Ronald E. Hess
Michael T. Sarotti
John F. Thomaser
Scott M. Hubbar
Elliott N. Daphne
Alfonso Earl Mancini
Ronald E. Hess
Michael T. Sarotti
John F. Thomaser
Scott M. Hubbar
Elliott N. Daphne
Alfonso Earl Mancini
Application Number:
JP13704096A
Publication Date:
February 21, 2007
Filing Date:
May 30, 1996
Export Citation:
Assignee:
XEROX CORPORATION
International Classes:
B09C1/00; E21B43/00; B01D53/34; B09C1/02; C02F1/00; E21B43/12; E21B43/14; E21B43/25; E21B43/30; (IPC1-7): B09C1/04; C02F1/00
Domestic Patent References:
| JP7501005A |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Kato Kazunori
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