Title:
METHOD OF RESTORING POLLUTED SOIL AND UNDERGROUND WATER IN SITE BY USING CALCIUM CHLORIDE
Document Type and Number:
Japanese Patent JPH0639055
Kind Code:
A
Abstract:
PURPOSE: To provide a method for preventing soluble heavy metal pollution material existing in a stratum or submarine layer including carbonate from being fluidized again by groundwater by stabilizing the soluble heavy metal pollution material using calcium chloride water solution. CONSTITUTION: This method includes a step to introduce calcium chloride water solution including a stabilized volume of calcium ions into a layer including carbonate. By forming copercipitation materia which is hardly soluble in fluid in the layer from a reaction of the pollution material and carbonate to calcium ions, re-fluidization of the heavy metal pollution material by groundwater can be prevented.
Inventors:
DEBITSUDO CHIYAARUSU GURANTO
KAAMIN EMU MANKIYUSO
HAABAATO ANDORIYUU BAAGUMAN
KAAMIN EMU MANKIYUSO
HAABAATO ANDORIYUU BAAGUMAN
Application Number:
JP11212793A
Publication Date:
February 15, 1994
Filing Date:
April 14, 1993
Export Citation:
Assignee:
WESTINGHOUSE ELECTRIC CORP
International Classes:
A62D3/00; A62D3/33; B09C1/02; A63F7/06; B09B3/00; B09C1/08; E02D3/12; E03B3/15; E21B43/28; A62D101/24; A62D101/40; A62D101/43; (IPC1-7): A62D3/00; B09B3/00; E02D3/12; E03B3/15
Attorney, Agent or Firm:
Koichiro Kato (2 outside)
Next Patent: RECORDING AND/OR REPRODUCING DEVICE