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  • How is an anionic polyacrylamide flocculant synthesized?
  • In this study, an anionic polyacrylamide flocculant was synthesized by ultrasonic initiated template copolymerization (USTP), using sodium allylsulfonate (SAS) and acrylamide (AM) as monomers, poly diallyl dimethyl ammonium chloride (polyDADMAC) as template, and 2,2′-azobis [2- (2-imidazolin-2-yl) propane] dihydrochloride (VA-044) as initiator.
  • What are cationic polymer flocculants?
  • Anionic polymer flocculants are usually used in neutral and basic conditions. Representative cationic polymer flocculants include (1) copolymers of acrylamide and acryloyloxyethyl trimethylammonium chloride, (2) poly (methacryloxyethyl trimethylammonium chloride), and (3) polyamidine.
  • What are polymer flocculants used for?
  • Polymer flocculants are widely used in water treatment, serving as a primary coagulant of more often used as a means of enhancing the floc strength of dewaterability. There are many kinds of polymers which have various molecular weight, charge type (nonionic, anionic, cationic, or amphoteric), and charge density (Fig. 4 ).
  • What are some examples of anionic polymer flocculants?
  • Representative anionic polymer flocculants are as follows: (1) partially hydrolyzed polyacrylamides, (2) copolymers of acrylamide and acryl acid soda, (3) copolymers of acrylamide and acrylamide-2-methyl-propan sulfonic soda (AMPS), and (4) poly (sodium acrylate).