芳香族ハロゲン化合物を含有する土壌・地下水の浄化処理用鉄複合粒子粉末、その製造法、当該鉄複合粒子粉末を含む浄化剤、その製造法及び芳香族ハロゲン化合物を含有する土壌・地下水の浄化処理方法

Title:

Document Type and Number:

Japanese Patent JP4352215

Kind Code:

B2

Abstract:

To provide a method capable of efficiently, continuously, and economically decomposing aromatic halogen compounds such as dioxins and PCBs contained in soil or underground water.

The cleaning agent for use in cleaning underground water containing an iron composite particle powder chiefly comprises an α-Fe phase and has a saturation magnetization value of 60-200 Am2/kg, a BET specific surface area of 5-50 m2/g, a crystallite size D110of 200-500 Å, an Fe content of ≥ 75 wt%, an S content of ≥ 500 ppm, and a particle diameter of 0.05-0.50 μm on average.

Inventors:

Junno Kono
Tomoko Okita
Yasuhiko Fujii
Kenji Okinaka

Application Number:

JP2003161689A

Publication Date:

October 28, 2009

Filing Date:

June 06, 2003

Export Citation:

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Assignee:

Toda Kogyo Co., Ltd.

International Classes:

B09C1/02; A62D3/30; A62D3/37; B09C1/08; B22F1/00; B22F1/02; B22F9/22; C02F1/58; C02F1/62; C02F1/70; C07B35/06; C09K3/00; C09K17/02; A62D101/22; A62D101/28; A62D101/43

Domestic Patent References:

JP2002159960A
JP2000140827A
JP2000080401A
JP11267507A
JP9089228A
JP8270924A

Foreign References:

WO2001008825A1

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