Fluid disposal equipment - 株式会社日立製作所

Title:

Fluid disposal equipment

Document Type and Number:

Japanese Patent JP5982239

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a liquid treatment facility capable of improving the biological treatment performance of a sewage or effluent treatment predicated on an activated sludge process or membrane-separated activated sludge process by preventing the stagnation of suspended solid matters such as activated sludge, etc.SOLUTION: The provided liquid treatment facility 101a comprises a primary treatment means 1 of executing, following a biological treatment of an inflow member of at least either of a sewage and an effluent each including organic matters, the solid-liquid separation thereof, a secondary treatment means 4 of filtering, via an ultrafiltration membrane, the primarily treated water W13 generated as a result of the treatment by the primary treatment means, a backwashing means 11 of backwashing the secondary treatment means with the secondarily treated water generated as a result of the treatment by the secondary treatment means, a backwashing effluent flow channel 19 for guiding, into the primary treatment means, the backwashing effluent generated as a result of the backwashing of the secondary treatment means, and a sludge extracting flow channel 14 for discarding the sludge extracted from the primary treatment means. The secondary treatment means includes a circulation means 9 of circulating the to-be-treated water of the secondary treatment means.

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Inventors:

Masataka Hidaka
Takahiro Tate
Takemoto Tsuyoshi

Application Number:

JP2012209565A

Publication Date:

August 31, 2016

Filing Date:

September 24, 2012

Export Citation:

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Assignee:

株式会社日立製作所

International Classes:

C02F1/44; B01D61/02; B01D61/14; B01D61/58; B01D65/02; B01D65/06; B01F1/00; B01F3/04; B01F5/02; C02F1/24; C02F1/78; C02F3/12; C02F9/04; C02F9/08; C02F9/14; C02F11/06

Domestic Patent References:

JP2008086863A
JP2002306930A
JP63118996U
JP2002035554A
JP4074584A
JP2002895A

Attorney, Agent or Firm:

Polaire Patent Business Corporation

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