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.

Does cationic polyacrylamide flocculate Phaeodactylum tricornutum?

However, Nguyen et al., observed high flocculation efficiency of marine microalgae Phaeodactylum tricornutum with a cationic polyacrylamide flocculant (FO3801). The discrepancy in the literature suggested that a future flocculation study using one type of polymer with multiple marine species. 4. Conclusions

What are the synthesis methods of cationic flocculants?

The review summarized the synthesis methods research progress of cationic flocculants. Four groups of synthesis technologies of cationic copolymers were reviewed, including aqueous solution polymerization, dispersion polymerization, inverse emulsion polymerization and photo initiated polymerization.

Can cationic flocculants be synthesised by UV-induced polymerization?

4. Conclusions This study demonstrated facile synthesis of two cationic flocculants via UV-induced polymerization of monomers [2- (acryloyloxy)ethyl]trimethylammonium chloride and (3-acrylamidopropyl)trimethylammonium chloride for harvesting freshwater green microalgae (C. vulgaris) and marine red microalgae (P. purpureum).

What is cationic polyacrylamide (CPAM)?

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.

Which cationic polymers are used to harvest freshwater microalgae?

Two positively charged cationic polymers including poly [2 (acryloyloxy)ethyl]trimethylammonium chloride (PAETAC) and poly (3 acrylamidopropyl)trimethylammonium chloride (PAmPTAC) were synthesized using the UV-induced radical polymerization, for harvesting both freshwater and marine microalgae.