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Cationic Polyacrylamide Product Performance
Sep 22, 2017

Cationic polyacrylamide (CPAM) is a linear polymer compound, because it has a variety of active groups, which can be bonded with many substances and adsorbed to form hydrogen bonds. Mainly flocculation negatively charged colloid, except the turbidity, decoloring, adsorption, adhesion, and other functions, suitable for dyeing, papermaking, food, building, metallurgy, mineral processing, coal, oil field, aquatic products processing and fermentation industries such as waste water treatment of organic colloid content is higher, especially suitable for urban sewage, urban sewage sludge, sludge and other industrial sludge dewatering treatment.

Product form

Cationic polyacrylamide, in accordance with the form of different can be divided into solid and emulsion two forms, the most widely used on the market at present is solid granule, and cationic PAM latex as a kind of new form less product market applications.

Degree of hydrolysis

Degree of hydrolysis polyacrylamide refers to the weak ion polyacrylamide solution combined with water, the formation of weak alkaline or the ability of weak acid, or is formed in the PAM aqueous solution of the strength of weak acid and weak base ability strong or weak. For strong acids and strong bases, the greater the ionization degree, the stronger the acidity, and the weaker the degree of hydrolysis. For some soluble polyacrylamide, the greater the ionization degree, the less the degree of hydrolysis. In general, the degree of dissociation is greater, and the degree of hydrolysis is much smaller.

Product performance

1. PAM has unique decolorizing ability, which is mainly used in the decolorization of high chromaticity wastewater in the dye plant. The suitable dye varieties are active, acidic and disperse dyes.

2. It can also be used in the treatment of industrial waste water such as textiles, printing and dyeing and printing ink.

3. The decolorization rate of the product can reach over 95%, and the removal rate of COD is between 40 and 70 %.

Use guide

1) polyacrylamide is organic polymer compound, can be divided into anionic polyacrylamide, cationic polyacrylamide and nonionic polyacrylamide, as the white powder or granule, soluble in water, but slower to dissolve;

2) anionic polyacrylamide is generally used in wastewater treatment flocculant, and cationic type is commonly used in sludge dewatering.

3) as a flocculant, the dosage is usually 1-2ppm, that is, the amount of water used for each treatment of 1 ton of wastewater is about 1-2g.

4) when used, the anionic type is normally prepared with a water solution of about 0.1 percent, and the cationic type can be made up to 0.1-0.5 percent.

5) solutions should be in the dissolving tank water first, then open the blender, then PAM along the spiral slowly add, PAM cannot one-time input quickly, otherwise the PAM will agglomerate to form "fish eye" and cannot be dissolved;

6) after adding PAM, it should continue to stir for more than 30min to ensure its full dissolution;

7) the dissolved PAM should be used as soon as possible, the anionic type is generally not more than 36h, and the cationic type dissolves easily and should be used within 24h.