What factors affect the flocculation effect of cationic polyacrylamide (CPAM)?

Cationic polyacrylamide (CPAM) is a commonly used flocculant for water treatment. Factors that affect the flocculation effect and can be controlled manually include the type and dosage of CPAM, wastewater pH, stirring time and settling time, and their reasonable setting is critical to the flocculation effect of CPAM.

Can polyacrylamide be used as a coagulant in humic acid-kaolin water treatment?

Drinking water treatment by stepwise flocculation using polysilicate aluminum magnesium and cationic polyacrylamide J. Environ. Chem. Eng., 7 ( 2019), Article 103049 Polyacrylamide as coagulant aid with polytitanium sulfate in humic acid-kaolin water treatment: effect of dosage and dose method

Are cationic polyacrylamides better than anionic polyamides?

They suggested that cationic polyacrylamides (PAM) produced floc aggregates with larger size, greater shear-resistant ability and higher regrowth capacity than anionic one, arising from the contribution of charge neutralization and bridging effects , , .

Does cationic-polyacrylamide increase zeta potential of inorganic coagulants?

The use of Cationic-Polyacrylamide as a flocculant significantly increased the zeta potential of inorganic coagulants ( Fig. 2). Thus, the addition of CPAM in three coagulants was observed more effective in fluorescence quenching of HA-like organics, which indicated that CPAM promoted the effective removal of HA.

Why is polyacrylamide used in water treatment and sludge dewatering?

Polyacrylamide and its copolymers are extensively employed in water treatment and sludge dewatering. The efficiency of flocculation is influenced by factors such as the type of flocculant used, its molecular weight, and its concentration in the water suspension. Flocculation occurs through mechanisms of charge neutralization and bridging.

Does cationic polyacrylamide enhance algal harvest?

[Google Scholar] [CrossRef] Park, J.B.K.; Meerman, C.; Craggs, R. Continuous low dosing of cationic polyacrylamide (PAM) to enhance algal harvest from a hectare-scale wastewater treatment high rate algal pond. N. Z. J. Bot. 2019, 57, 112–124.