polyacrylamide flocculant for water treatment in canada

polyacrylamide flocculant for water treatment in canada
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  • Which flocculants are used in water treatment?
  • The flocculants include: low MW anionic PAM (aPAM1, CD < 5%, Veolia Water Technologies), high MW anionic PAM (aPAM2, CD < 5%, Kemira Water Solutions Canada Inc.), low MW cationic PAM (cPAM1, CD ≈ 7%, Kemira Water Solutions Canada Inc.), low MW cationic PAM (cPAM2, CD ≈ 20%, Kemira Water Solutions Canada Inc.).
  • 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.
  • 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.
  • Can polymer materials be used as water soluble flocculants?
  • Our review indicates that there has been a large body of literature in the recent years focusing on introducing new polymer materials as water soluble flocculants for a variety of applications including wastewater treatment, mineral processing, and oil sands tailings treatment.