POLYMER FLOCCULANT

PROBLEM TO BE SOLVED: To provide a polymer flocculant capable of significantly reducing the generation amount of sludge cake and ash after incineration by forming dense floc having a low moisture content without using an inorganic coagulant in the dehydration treatment of organic sludge and the like...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	HASEGAWA SHIMPEI, IWATA TOSHIYA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a polymer flocculant capable of significantly reducing the generation amount of sludge cake and ash after incineration by forming dense floc having a low moisture content without using an inorganic coagulant in the dehydration treatment of organic sludge and the like difficult to dehydrate.SOLUTION: A polymer flocculant (P) contains a water-soluble polymer (A) which contains a water-soluble hydroxyl group-containing monomer (a) having one unsaturated group and a cationic monomer (b) having one unsaturated group as a constituent unit, which has a cation colloid equivalent value of 2.0-6.0 meq/g and which satisfies a relational formula [1]: -0.10≤ln[ ]/lnV≤0.30 [1] (where, [ ] is an intrinsic viscosity of (A) in 1 N-NaNOaqueous solution at 30°C; and Vs is a viscosity of (A) of 0.5 wt.% salt aqueous solution in 4 wt.% NaCl aqueous solution at 25°C.