METHOD AND APPARATUS FOR CLEANING SOIL

WIPO Patent Application WO/2004/110660

A1

A method and apparatus for cleaning a contaminated soil using an ejector (8) for washing a contaminated soil and sand, a soil and sand separating vessel (3, 4) receiving the washed soil and sand, and a scum separating vessel (19) receiving a stored water in the soil and sand separating vessel (3, 4), which comprises a treatment of washing the contaminated soil and sand with an ejector (8) before sending the soil and sand to the soil and sand separating vessel (3, 4), a treatment of sedimenting the washed soil and sand in the soil and sand separating vessel (3, 4), a treatment of sending out the water being present near the upper water surface to the scum separating vessel (19), a treatment of recovering a concentrated scum in the scum separating vessel (19), a treatment of reusing a separated water from the scum separating vessel (19) as a washing water and a treatment of discharging a soil and sand having been sedimented in the soil and sand separating vessel (3, 4).

JP3698255	SOIL-SCREENING APPARATUS AND METHOD
WO/2013/048338	SOIL TREATMENT FACILITY
WO/2002/011913	METHOD FOR DECONTAMINATING A REGION WITH CONTAMINATED HETEROGENEOUS SOIL

SHIKATA YOUSUKE (JP)

PCT/JP2003/014384

December 23, 2004

November 12, 2003

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ETL INC (JP)
SHIKATA YOUSUKE (JP)

B09C1/00; B01D21/00; B03B5/00; B03B5/28; B03B5/66; B03B7/00; B03B9/00; B03B9/06; B03D1/02; B03D1/14; B09C1/02; C02F1/24; (IPC1-7): B09C1/02; B03B5/28; B03B5/66; B03D1/02; B03D1/14

WO1998037991A1

1998-09-03

JP2002336731A	2002-11-26
JP2002177942A	2002-06-25
JPS5496475U	1979-07-07
JPS5332469A	1978-03-27

Akiyama, Atsushi (5-1 Toranomon 3-chom, Minato-ku Tokyo, JP)

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