What is a high molecular weight polyacrylamide (PAM)?

Low molecular weight PAM can be used as a paper strengthening agent. Medium molecular weight polyacrylamide PAM is used as a retention and drainage aid. And high molecular weight polyacrylamide is used as a flocculant in the treatment of papermaking wastewater. At present, anionic PAM is most used in the paper industry.

Which polyacrylamide has a good flocculation efficiency?

Flocculation performance of four kinds of polyacrylamide (PAM) with different chain end group, namely, PAM, star-PAM, PGS-PAM and Al (OH) 3 –PAM hybrids, in Kaolin suspensions have been investigated by Spectrophotometer. It was found that their flocculation efficiency deceases in the order: PGS-PAM –PAM PAM.

Why is polyacrylamide used as a flocculant?

Polyacrylamide (PAM) is a commonly used polymeric flocculant because it is possible to synthesize polyacrylamides (PAMs) with various functionalities (positive, neutral, or negative charge) which can be used to produce a good settling performance at relatively low cost.

What are the applications of polyacrylamide (PAM)?

It is widely used in many fileds like Water Treatment, Oil Exploration, Sludge Dewatering, Paper Making, Textile, Sugar Making, Coal washing and Incense Making, etc. Keywords: PAM, Polyacrylamide, Anionic PAM, Cationic PAM, Nonionic PAM, Flocculant, Acrylamide resin, Acrylamide gel solution, Coagulant, APAM, CPAM, NPAM.

What are the different types of polyacrylamide flocculants?

1. Introduction It is well known that polyacrylamide (PAM), which is a type of water-soluble polymer, is widely used in industrial wastewater treatment as a flocculant , . In general, these flocculants can be divided into three groups, depending on the nature of their charge, i.e., cationic-PAM, anionic-PAM and non-ionic-PAM.

Which polyacrylamide is used as a pulp dispersant?

Anionic polyacrylamide can be used as a pulp dispersant. Low molecular weight PAM can be used as a paper strengthening agent. Medium molecular weight polyacrylamide PAM is used as a retention and drainage aid. And high molecular weight polyacrylamide is used as a flocculant in the treatment of papermaking wastewater.