Title:
WASTEWATER TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/099306
Kind Code:
A1
Abstract:
Provided is a wastewater treatment device that can stably treat wastewater even if water quality fluctuations are large. The wastewater treatment device includes: a first biological treatment device (10) that treats wastewater by means of a membrane-separated activated sludge method; a second biological treatment device (20) that treats wastewater by means of a biofilm method; measurement units (31, 32) that measure the flow rate and load concentration in the wastewater flowing upstream of the first biological treatment device (10) and the second biological treatment device (20); and a control unit (30) that calculates the load quantity from the flow rate and the load concentration, determines in accordance with the load quantity a distribution ratio between the flow rate of the wastewater supplied to the first biological treatment device (10) and the flow rate of the wastewater supplied to the second biological treatment device (20), and on the basis of the distribution ratio, adjusts the flow rate of the wastewater supplied to the first biological treatment device (10) and the flow rate of the wastewater supplied to the second biological treatment device (20).
Inventors:
KAMIMURA KAZUHIDE (JP)
MAEDA TAKUHIRO (JP)
NISHIDA MORIKATA (JP)
SHIGIISHI KOSUKE (JP)
TERAKURA SEIICHI (JP)
SUZUKI HIDEO (JP)
KONDO GAKU (JP)
MAEDA TAKUHIRO (JP)
NISHIDA MORIKATA (JP)
SHIGIISHI KOSUKE (JP)
TERAKURA SEIICHI (JP)
SUZUKI HIDEO (JP)
KONDO GAKU (JP)
Application Number:
PCT/JP2012/059742
Publication Date:
July 04, 2013
Filing Date:
April 10, 2012
Export Citation:
Assignee:
MITSUBISHI HEAVY IND MECHATRONICS SYSTEMS LTD (JP)
KAMIMURA KAZUHIDE (JP)
MAEDA TAKUHIRO (JP)
NISHIDA MORIKATA (JP)
SHIGIISHI KOSUKE (JP)
TERAKURA SEIICHI (JP)
SUZUKI HIDEO (JP)
KONDO GAKU (JP)
KAMIMURA KAZUHIDE (JP)
MAEDA TAKUHIRO (JP)
NISHIDA MORIKATA (JP)
SHIGIISHI KOSUKE (JP)
TERAKURA SEIICHI (JP)
SUZUKI HIDEO (JP)
KONDO GAKU (JP)
International Classes:
C02F3/12; C02F3/06
Domestic Patent References:
| WO2007029509A1 | 2007-03-15 |
Foreign References:
| JPH09206793A | 1997-08-12 | |||
| JP2004148145A | 2004-05-27 | |||
| JP2001334282A | 2001-12-04 | |||
| JP2001276867A | 2001-10-09 | |||
| JP2002219481A | 2002-08-06 | |||
| JPS62204897A | 1987-09-09 | |||
| JPH07116639A | 1995-05-09 | |||
| JP2005211788A | 2005-08-11 |
Attorney, Agent or Firm:
FUJITA, Takaharu et al. (JP)
Takaharu Fujita (JP)
Takaharu Fujita (JP)
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Claims: