CONTAMINATED SOIL TREATMENT SYSTEM

WIPO Patent Application WO/2013/186873

A1

A contaminated soil treatment system (10) is configured to contain a municipal water tank (14), a hopper (16) into which contaminated soil (20) is injected, a separating device (40), a segregating device (60), a circulating device (70), a flocculation tank (92), and a plurality of pipes disposed among these. The separating device (40) comprises a transporting ejector (48) that injects gas-accompanied jetted water (44), and a separating unit (50) that separates sandy material (24) from clay material (22) in the contaminated soil (20) by colliding the gas-accompanied jetted water (44) with the contaminated soil (20) that is delivered to a distal end of the transporting ejector (48). The circulating device (70) circulates circulation water (28) in which the clay material (22) is mixed using the negative pressure of the gas-accompanied jetted water (86) injected by an intake ejector (88), and the contaminated material adhering to the clay material (22) is reabsorbed into an adsorbent (74).

HIRAYAMA KAZUO (JP)
KIM HAK MIN (JP)
YAMANOUCHI SOHEI (JP)
INAGAKI NATSUO (JP)

PCT/JP2012/065118

December 19, 2013

June 13, 2012

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UNIV NIHON (JP)
EMCOM HOLDINGS CO LTD (JP)
R & D TECHNO CORP (JP)
NATECH SYSTEM INC (JP)
HIRAYAMA KAZUO (JP)
KIM HAK MIN (JP)
YAMANOUCHI SOHEI (JP)
INAGAKI NATSUO (JP)

G21F9/28

JPS5886498A	1983-05-24
JPS5234577U	1977-03-11
JP4970627B1	2012-07-11

YKI Patent Attorneys (JP)
Patent business corporation YKI international patent firm (JP)

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