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Title:
AERATOR AND WASTE WATER TREATMENT EQUIPMENT
Document Type and Number:
Japanese Patent JP2010094566
Kind Code:
A
Abstract:

To provide an aerator capable of sufficiently absorbing the vibration of a downcomer, with a simple structure.

This invention relates to the aerator 41 for supplying aeration air to water 43 to be treated in a reactor 42 while circulating the water 43 in the reactor 42. The reactor 42 is provided with a takeoff port 48 for taking off the water 43 to be treated to the outside of the reactor and a returning port 49 for taken-off water 43 to be treated from the take-off port 48 to the reactor. A circulation pipe 50 communicating with the takeoff port 48 and the returning port 49 is included, a pump 52 is provided in the circulation pipe 50, the circulation pipe 50 has the downcomer 59 through which the water 43 to be treated flows downward, the downcomer 59 is provided outside of the reactor 42, the lower end of the downcomer 59 is connected to the returning port 49, an ejector 66 for sucking air and introducing into the downcomer 59 is provided in the circulation pipe 50 and an expansion joint 64c for preventing the vibration is provided in the lower end part of the downcomer 59 outside of the reactor 42.


Inventors:
ABE TAKESHI
TACHIBANA MINEO
Application Number:
JP2008264722A
Publication Date:
April 30, 2010
Filing Date:
October 14, 2008
Export Citation:
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Assignee:
KUBOTA KANKYO SERVICE KK
International Classes:
C02F3/22
Domestic Patent References:
JPH0515894A1993-01-26
JPS124578B1
JPS5730598A1982-02-18
JPS5955393A1984-03-30
JPS6354496U1988-04-12
JPH0448920A1992-02-18
JPH07108295A1995-04-25
JPH0515893A1993-01-26
JPH028586A1990-01-12
JPH0463972A1992-02-28
JPH11101301A1999-04-13
JP2000345989A2000-12-12
JP2003120887A2003-04-23
JPH11166A1999-01-06
JP2001087781A2001-04-03
JP2008188574A2008-08-21
JPS5595899U1980-07-03
JPS586259A1983-01-13
JPS59105825A1984-06-19
JPH0448920A1992-02-18
JPH0515894A1993-01-26
JPS124578B1
JPS5730598A1982-02-18
JPS5955393A1984-03-30
JPS6354496U1988-04-12
JPH07108295A1995-04-25
Attorney, Agent or Firm:
Yohei Harada
Yoshihiro Morimoto
Toshiji Sasahara



 
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