Title:
DEWATERING METHOD OF SLUDGE USING WATER-IN-OIL TYPE EMULSION COAGULATION TREATMENT AGENT
Document Type and Number:
Japanese Patent JP2016163850
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a dewatering method of sludge using a coagulation treatment agent whose performance is more excellent than a conventional polyvinylamine-based water-soluble polymer, polyamidine-based water-soluble polymer and acrylic water-soluble polymer.SOLUTION: Highly efficient dehydration treatment in comparison with a conventional polyvinylamine-based water-soluble polymer, polyamidine-based water-soluble polymer and acrylic water-soluble polymer can be performed by adding a coagulation treatment agent containing the water-in-oil type emulsion of polyvinylamine having an intrinsic viscosity in an NaCl aqueous solution of 1 mol/L concentration at 25°C of 4.0 to 10.0 dL/g, a viscosity in 0.2 mass% aqueous solution of 10 to 200 mPa s and an amination degree of 30 to 80 mol%, and the water-in-oil type emulsion of a cationic or amphoteric water-soluble polymer having a specific structure and composition having a cationic monomer of 30 to 100 mol% to organic sludge.SELECTED DRAWING: None
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Inventors:
YONEKURA ATSUSHI
MITSUI SHOHEI
MITSUI SHOHEI
Application Number:
JP2015044133A
Publication Date:
September 08, 2016
Filing Date:
March 06, 2015
Export Citation:
Assignee:
HYMO CORP
International Classes:
B01D21/01; C02F11/14; C08F8/12; C08F26/02
Domestic Patent References:
| JP2012206024A | 2012-10-25 | |||
| JP2013252476A | 2013-12-19 | |||
| JP2004059747A | 2004-02-26 | |||
| JP2004025097A | 2004-01-29 |