Title:
An aversion disposal method and an anaerobic treatment apparatus
Document Type and Number:
Japanese Patent JP5969400
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To propose, by targeting an anaerobic treatment method of an organic effluent including C1 compounds, a novel anaerobic treatment method of an organic effluent capable of sustaining a prescribed volume of sludge within a methane fermentation tank.SOLUTION: The proposed anaerobic treatment method of an organic effluent comprises: a methane fermentation step of executing the methane fermentation of an organic effluent and dissociating the generated biogas; a sludge separation step of adding, to the methane-fermented treated water discharged from the methane fermentation step, metal cations bearing a divalent or higher valence and then separating and recovering the sludge and treated water by separating the methane-fermented treated water to which the metal cations have been added; and a sludge return step of returning, to the methane fermentation step, some or all of the sludge separated and recovered at the sludge separation step.
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Inventors:
Kazuko Kamachi
Yasuhiro Homma
Yuji Tsukamoto
Yasuhiro Homma
Yuji Tsukamoto
Application Number:
JP2013002822A
Publication Date:
August 17, 2016
Filing Date:
January 10, 2013
Export Citation:
Assignee:
Watering Co., Ltd.
International Classes:
C02F3/28; B01D21/00; B01D21/01; B01D21/02; C02F3/00
Domestic Patent References:
| JP2009148705A | ||||
| JP4341398A | ||||
| JP2008279385A | ||||
| JP8155486A | ||||
| JP2003164892A | ||||
| JP2003164893A | ||||
| JP2006026536A | ||||
| JP2005125203A | ||||
| JP2009214043A | ||||
| JP2011011171A | ||||
| JP10216784A | ||||
| JP2006272138A |
Foreign References:
| WO2004096720A1 |
Attorney, Agent or Firm:
Takeuchi/Ichizawa International Patent Office