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.

Are methyl acrylate-based flocculants effective in sludge dewatering?

Methyl acrylate-based flocculants show competitive performance to PAM. Sludge dewatering was tested with various wastewater samples. In the present research, copolymers of methyl acrylate (MA) with anionic or cationic monomers were synthesized via emulsion polymerization, and used as sludge dewatering aids in wastewater treatment.

Can cnpam flocculate kaolin suspension?

The CNCs content in the CNCs/PAM hybrid (CNPAM), hybrid dosage, and pH value were optimized. We further studied the effects of stirring speed and time as well as sedimentation time on the flocculation behavior. Under optimal conditions, the CNPAM flocculant could effectively flocculate kaolin suspension with a transmittance of >93%.

Can Am-Free flocculants be used in biological sludge dewatering?

To further evaluate the performance of new AM-free flocculants on real biological sludge dewatering, an on-site application of Poly (MA-co-AETAC) in refinery biological sludge was performed at a typical Chinese petroleum refinery plant.

Can new developed flocculants be used in sludge dewatering?

To elucidate the application of new developed flocculants in sludge dewatering, real water tests were carried out. Buchner funnel dewatering testing was used to evaluate the Poly (MA-co-AETAC) flocculants performance on sludge dewatering, which were benchmarked against the commercial polyacrylamide product (PAM-co-AETAC) with 55% charge density.

Does cnpam flocculant have a good universality for high turbid water?

The fractal dimension analysis indicated floc size increased with the enhancement of the CNC content in the CNPAM flocculant. It was testified that the flocculant had good universality for high turbid water in different concentrations and with the presence of various inorganic salts.