Title:
FLOCCULANT, FLOCCULATION METHOD, AND WATER TREATMENT APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/128711
Kind Code:
A1
Abstract:
In order to rapidly remove an organic acid dissolved in wastewater, a flocculant according to the present invention for forming an aggregate between organic acids included in wastewater is configured to include iron oxide having an inorganic salt on a surface thereof, and an aqueous solution of a polymer having an acidic group. When this flocculant is used to aggregate and remove organic acids in wastewater, the iron oxide having an inorganic salt on the surface thereof is added to the wastewater, the aqueous solution of a polymer having an acidic group is added, and precipitated aggregates are magnetically separated. The water treatment apparatus of the present invention for removing organic substances from wastewater is provided with a mechanism for stirring wastewater, a mechanism for adding iron oxide having an inorganic salt on the surface thereof to the wastewater, a mechanism for adding an aqueous solution of a polymer having an acidic group, and a mechanism for magnetically separating aggregates that occur.
Inventors:
SASAKI HIROSHI (JP)
MOCHIZUKI AKIRA (JP)
ISOGAMI HISASHI (JP)
MOCHIZUKI AKIRA (JP)
ISOGAMI HISASHI (JP)
Application Number:
PCT/JP2012/077904
Publication Date:
September 06, 2013
Filing Date:
October 29, 2012
Export Citation:
Assignee:
HITACHI PLANT TECHNOLOGIES LTD (JP)
International Classes:
B01D21/01; B03C1/00; C02F1/52; C02F1/56
Domestic Patent References:
| WO2008105521A1 | 2008-09-04 |
Foreign References:
| JP2011036746A | 2011-02-24 | |||
| JP2010022888A | 2010-02-04 | |||
| JP2006327962A | 2006-12-07 |
Attorney, Agent or Firm:
POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)
Polaire Intellectual Property Corporation (JP)
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Claims: