Title:
METHOD AND APPARATUS FOR CLEANING HEAVY METAL POLLUTED SOIL
Document Type and Number:
Japanese Patent JP2001000959
Kind Code:
A
Abstract:
To regenerate polluted soil into soil containing no heavy metals to reutilize the same as clean soil.
A cleaning apparatus of heavy metal polluted soil is equipped with a soil dissolving tank 1, an electric separation tank 2 for separating heavy metal ions from soil electrically, a chemical treatment and sedimentation tank 3 gathering an aq.soln. containing heavy metal ions to chemically treat the same and a pump 4 for transferring cleaned water to the soil dissolving tank 1. When DC voltage is applied to the electric separation tank, heavy metal ions are easily moved in an electrode direction by electrical force to be separated and removed from heavy metal polluted soil certainly, safely and efficiently for a short time.
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Inventors:
SATO KATSURO
Application Number:
JP17331699A
Publication Date:
January 09, 2001
Filing Date:
June 18, 1999
Export Citation:
Assignee:
SATO KATSURO
International Classes:
B09C1/08; B09C1/02; (IPC1-7): B09C1/02; B09C1/08
Attorney, Agent or Firm:
Yukihiko Kaneko