the selling price of modeling nonionic polyacrylamide flocculation using

the selling price of modeling nonionic polyacrylamide flocculation using
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  • Does anionic polyacrylamide polymer improve the flocculation of negatively charged kaolinite?
  • Somasundaran et al. (1988) asserts that this feature greatly improves the flocculation of negatively charged kaolinite dispersions [ 114 ]. The dispersion behavior of the coal and suspended clay particles such as kaolinite with the effect of anionic polyacrylamide polymer (APAM) is of great significance in selecting the flocculants [ 115 ].
  • What is a polymer flocculant?
  • Among the synthetic polymer flocculants, the most important is water-soluble polyacrylamide (PAM)—a non-ionic, amorphous polymer which can be modified to ionic form in the copolymerization process [ 8, 9, 10 ]. The acrylamide monomer can be used for grafting or crosslinking of other type of polymers.
  • What are cationic polymer flocculants?
  • Representative cationic polymer flocculants include (1) copolymers of acrylamide and acryloyloxyethyl trimethylammonium chloride, (2) poly (methacryloxyethyl trimethylammonium chloride), and (3) polyamidine. Their molecular weight ranges from several million to less than 20 million.
  • Do anionic polymer flocculants promote aggregation?
  • Owing to their high molecular weight of 10–20 million, anionic polymer flocculants can promote aggregation effectively at the amounts of several ppm for wastewater. The aggregation properties depend on pH, because the dissociation degree of anionic groups in the anionic polymer changes according to pH.