Can cationic polyacrylamide be used in water treatment and sludge dewatering?

To read the full-text of this research, you can request a copy directly from the authors. Cationic polyacrylamide (CPAM) were used extensively in water treatment, enhanced oil recovery and sludge dewatering. The review summarized the synthesis methods research progress of cationic flocculants.

What is cationic polyacrylamide (CPAM)?

Cationic polyacrylamides (CPAMs) are widely utilized due to their excellent performance in flocculation and sludge dewatering . Numerous studies have been conducted on CPAM synthesis technologies, including grafting, free radical polymerization, and polymer modification .

Are cationic copolymers used in sludge dewatering?

Four groups of synthesis technologies of cationic copolymers were reviewed, including aqueous solution polymerization, dispersion polymerization, inverse emulsion polymerization and photo initiated polymerization. Furthermore, the paper reviewed that the application of cationic flocculants in sludge dewatering treatment.

Can cationic flocculants be used in sludge dewatering treatment?

Furthermore, the paper reviewed that the application of cationic flocculants in sludge dewatering treatment. Based on these reviews, the future research perspectives of synthesis and application on cationic flocculants in sludge dewatering treatment were proposed.

Does tpamd improve sludge dewatering and flocculation effect?

Compared with CPAMD and the commercial flocculants, the sludge dewatering effect (FCMC and SRF) of TPAMD has been evidently improved by 1.4% for FCMC and 1.01 × 10 12 m/kg for SRF at least based on the sludge dewatering and flocculation test. TPAMD had good flocculation effect on water plant sludge.

Can cationic microblock structure improve sludge neutralization and electrical patching?

It was speculated that this phenomenon was caused by the cationic microblock structure in TPAMD. It could greatly improve the ability of electric neutralization and electrical patching. The surface charge and electrostatic repulsive force of sludge colloid particles would be rapidly reduced at a relatively small dosage.