Title:
TREATMENT METHOD OF WATER TO BE TREATED CONTAINING INORGANIC SLUDGE
Document Type and Number:
Japanese Patent JP2010201309
Kind Code:
A
Abstract:
To provide a treatment method of water to be treated containing inorganic sludge which can reduce the amount of wastewater.
A solution obtained by dissolving an amphoteric polymer coagulant consisting of a polymer having a constitutional unit derived from a monomer having a carboxyl group and a constitutional unit derived from a monomer represented by formula (1) or a monomer represented by formula (2) in filtered water obtained by dehydrating treated water containing flocculating agent is used as a dehydrating agent. In formula (1) or (2), R1 is a hydrogen atom or methyl; R2 and R3 are a hydrogen atom or 1-4C alkyl; R4 is 1-4C alkyl or benzyl; and Z- is Cl- or 1/2SO42-.
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Inventors:
AKIMOTO MASAHIRO
Application Number:
JP2009047969A
Publication Date:
September 16, 2010
Filing Date:
March 02, 2009
Export Citation:
Assignee:
DAIYANITORIKKUSU KK
International Classes:
C02F11/14; B01D21/01
Domestic Patent References:
| JPH0214799A | 1990-01-18 | |||
| JP2000153299A | 2000-06-06 | |||
| JPH11159281A | 1999-06-15 | |||
| JP2008229497A | 2008-10-02 | |||
| JPH07265900A | 1995-10-17 | |||
| JP2002256032A | 2002-09-11 | |||
| JPH0824871A | 1996-01-30 | |||
| JPH10211615A | 1998-08-11 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tadashi Takahashi
Takashi Watanabe
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
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