WATER TREATMENT DEVICE - MITSUBISHI HEAVY IND LTD

Title:

WATER TREATMENT DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/008346

Kind Code:

A1

Abstract:

　A water treatment device (1) is provided with: a biological treatment tank (2) for storing a stored liquid (5); a pump (7) for generating a circulating liquid flow formed of the stored liquid (5); a gas-liquid two-phase flow generation device (8) for using the circulating liquid flow to suction a gas containing oxygen, whereby a gas-liquid two-phase flow in which the gas is dispersed in the circulating liquid flow is generated; and a nozzle (12) for injecting the gas-liquid two-phase flow into the biological treatment tank (2). Such a water treatment device (1) is capable of causing the stored liquid (5) to adequately circulate in the biological treatment tank (2), adequately aerate the stored liquid (5), and adequately treat the stored liquid (5).

Inventors:

SATOU JUN (JP)
OKINO SUSUMU (JP)
UKAI NOBUYUKI (JP)
SUZUKI HIDEO (JP)
NAKASHOJI HIROSHI (JP)
YOSHIOKA SHIGERU (JP)
SAKURAI HIDEAKI (JP)
OGAWA NAOKI (JP)

Application Number:

PCT/JP2013/069392

Publication Date:

January 22, 2015

Filing Date:

July 17, 2013

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

C02F3/12; B01D65/02; C02F1/44; C02F3/22

Domestic Patent References:

WO2008038436A1

2008-04-03

Foreign References:

JPH04290590A	1992-10-15
JP2005329397A	2005-12-02
JP2000157993A	2000-06-13
JP2002210488A	2002-07-30
JP2003205287A	2003-07-22
JP2000051886A	2000-02-22
JP2007105580A	2007-04-26
JP2011177608A	2011-09-15
JP2009061349A	2009-03-26
JP3854481B2	2006-12-06
JP3486399B2	2004-01-13

Other References: