cited by: 19anionic polymer coagulant polyacrylamide flocculant

cited by: 19anionic polymer coagulant polyacrylamide flocculant
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  • Does anionic polyacrylamide improve the coagulation–flocculation process?
  • The use of anionic polyacrylamide had little effect on this cost but improved the coagulation–flocculation process, leading to a significant increase in the settling speed and reduction in the volume of sludge produced. Table 7.
  • 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 type of polymer is a flocculant?
  • Most flocculants are acrylamide-based polymers and may be available in anionic, cationic, nonionic, or amphoteric forms 18. The copolymer adsorption on the surface of montmorillonite particles generally depends on the functional group of monomers and charge distribution 19, 20, 21.
  • Why is anionic polyacrylamide chosen?
  • Anionic polyacrylamide is chosen because the intramolecular electrostatic repulsion between polymer segments forces the polymer chains to adopt a more extended conformation, increasing the efficiency of bridging flocculation.