ADDITIVE FOR USE TO RESTORE POLLUTED SOIL, GROUNDWATER OR BOTTOM SEDIMENT SOIL

WIPO Patent Application WO/2005/118171

A1

[PROBLEMS] To provide an additive that is capable of restoring various geological polluted sites and can realize low-cost restoration work, and that is used in biological restoration of soil, groundwater or bottom sediment soil polluted by organic halogenated compounds, especially organic chlorinated compounds. [MEANS FOR SOLVING PROBLEMS] An additive comprising a substance capable of formation/activation of microbial consortiums, a substance capable of accelerating reductive dehalogenation by anaerobic microbes and a substance capable of generating anaerobic condition is added to soil, groundwater or bottom sediment soil polluted by organic chlorinated compounds. As a result, native microbial consortiums consume oxygen to thereby create an anaerobic atmosphere (anaerobic condition) in the restoration object. In the created anaerobic atmosphere, anaerobic microbes decompose organic halogenated compounds as electron acceptors, finally to inorganic halides, through reductive dehalogenation using a supplied electron donor or an electron donor produced by decomposition of supplied other additive.

CHANDRAGHATGI SHRIHARI (JP)
MAEDA SHINGO (JP)
NOGAWA KAORU (JP)
HIMI HIDEKI (JP)

PCT/JP2005/010187

December 15, 2005

June 02, 2005

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ECOCYCLE CORP (JP)
CHANDRAGHATGI SHRIHARI (JP)
MAEDA SHINGO (JP)
NOGAWA KAORU (JP)
HIMI HIDEKI (JP)

B09C1/08; B09C1/10; C02F3/00; C02F3/34; C02F11/04; (IPC1-7): B09C1/10; C02F3/00; C02F3/34; C02F11/04

JP2002224658A	2002-08-13
JPH11262751A	1999-09-28
JP2003145131A	2003-05-20

Kaiguchi, Muneaki (17-3 Shibuya 2-chome, Shibuya-ku Tokyo 02, JP)

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