汚染された土壌および地下水を浄化するための鉄粉注入を伴うニューマチック・フラクチャリングによる可溶性および不溶性重金属および有機ハロゲン化合物の原位置還元法

Title:

Document Type and Number:

Japanese Patent JP3753644

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide an inexpensive and durable novel cleaning treatment method which is capable of simultaneously detoxicating the heavy metals and organic halogen compounds in contaminated groundwater on site. SOLUTION: A boring hole 1 is dug down into a contaminated soil land and compressed air is blown into the ground by sealing the ground surface to generate fractures 2 in the weak segments of the ground. Iron powder is blown by the compressed air from the ground surface simultaneously with or after such an operation to form iron powder dispersion layers 4 in the fractures 2. Contaminated permeate 5 passes the iron powder dispersion layers 4 and comes into contact with the iron powder, by which the permeate is detoxicated. The permeated groundwater 6 is accepted in a pit section at the bottom of the boring hole 1.

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Inventors:

Toshimune Kimura
Jun Ogata
John Jay Liscowitz

Application Number:

JP2001302409A

Publication Date:

March 08, 2006

Filing Date:

September 28, 2001

Export Citation:

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Assignee:

DOWA MINING CO.,LTD.
Ars technologies incorporated

International Classes:

B09C1/02; A62D3/33; A62D3/34; A62D3/37; B09B3/00; B09C1/08; C02F1/58; C02F1/62; C02F1/70; C09K3/00; A62D101/22; A62D101/43

Domestic Patent References:

JP5501520A
JP8257570A
JP8173947A

Foreign References:

US5032042

Attorney, Agent or Firm:

Kenji Wada
Komatsu Taka
Maruoka Masahiko

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