nonionic polyacrylamide flocculant in india new making process

nonionic polyacrylamide flocculant in india new making process
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  • 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.
  • How effective are natural polymeric flocculants?
  • The effectiveness of natural polymeric flocculants such as starch, amylose, amylopectin, gelatine, and alginate is well known. The latest developments in polymeric flocculants are artificial polymers. The most widely used artificial polymer flocculants are non-ionic polyacrylamides and their derivatives [ 9 ].
  • Are nanocomposite flocculants based on synthetic polymers?
  • Most of the literature presents, however, nanocomposite flocculants based on synthetic polymers [ 230, 231 ]. An example of nanocomposite with using both synthetic and natural polymer is mentioned earlier graft copolymer of polyacrylamide/xanthan gum with silica nanoparticles [ 113, 114]
  • Why are polymer flocculants used in water purification?
  • Therefore, in modern water purification technologies, polymer flocculants are increasingly used. Polymer flocculants cause the formation of large, coherent aggregates (so-called flocs) that settle in the solution. Synthetic polymers are highly effective flocculants at low dosages but have poor shear stability.