Title:
MICROORGANISM-TREATMENT METHOD FOR SOIL POLLUTED WITH ORGANIC CHLORINE COMPOUND
Document Type and Number:
Japanese Patent JP3176849
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a microorganism-treatment method which decomposes highly concentrated chlorinated ethylenes in soil efficiently, especially tetrachloroethylene.
SOLUTION: Soil polluted with tetrachloroethylene is placed in a closed container. When the soil is added with a liquid culture medium, an yeast extract, and an anaerobic bacteria culture solution for a decomposition reaction, tetrachloroethylene is dechlorinated almost stoichiometrically into cis-1,2- dichloroethylene, which is oxidation-decomposed below a soil environment standard by the further addition of phenol, oxygen, and an aerobic bacterium culture solution.
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Inventors:
Masahiko Numata
Kenichi Matsuura
Kenichi Matsuura
Application Number:
JP21303096A
Publication Date:
June 18, 2001
Filing Date:
July 24, 1996
Export Citation:
Assignee:
DOWA MINING CO.,LTD.
International Classes:
A62D3/00; A62D3/02; B09C1/10; (IPC1-7): B09C1/10; A62D3/00
Domestic Patent References:
| JP7171548A | ||||
| JP6226230A | ||||
| JP523693A | ||||
| JP6434380A | ||||
| JP7136632A | ||||
| JP9224657A |
Attorney, Agent or Firm:
Masahiko Maruoka