Title:
含油廃水の処理方法
Document Type and Number:
Japanese Patent JP7450882
Kind Code:
B2
Abstract:
To provide a new treatment method which enables flotation separation using a coagulant even in a tank which does not have or cannot be equipped with special equipment such as agitation means, while using existing wastewater treatment equipment.SOLUTION: A treatment method for oil-containing wastewater is performed at treatment equipment where no agitation equipment other than the means for introducing fine bubbles is installed, and includes introducing fine bubbles into the wastewater so that floc is formed in the wastewater by agitating and mixing the wastewater to which a coagulant has been added, and the floc encompasses bubbles to form scum, and removing the scum.SELECTED DRAWING: None
Inventors:
Kawabe Sea
Yasuyuki Hirano
Daishin Hashiguchi
Tadanobu Saito
Yasuyuki Hirano
Daishin Hashiguchi
Tadanobu Saito
Application Number:
JP2020128529A
Publication Date:
March 18, 2024
Filing Date:
July 29, 2020
Export Citation:
Assignee:
Katayama Chemical Research Institute Co., Ltd.
Nalco Japan LLC
IDEMITSU KOSAN CO.,LTD.
Nalco Japan LLC
IDEMITSU KOSAN CO.,LTD.
International Classes:
C02F1/52; B01D21/01; C02F1/24
Domestic Patent References:
| JP2011000583A | ||||
| JP2001198569A | ||||
| JP51073752A | ||||
| JP2017192931A | ||||
| JP55018286A | ||||
| JP57014734B2 |
Attorney, Agent or Firm:
Ikeuchi & Partners Patent Attorney Corporation