nonionic polyacrylamide wastewater treatment at chile

nonionic polyacrylamide wastewater treatment at chile
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  • What is nonionic polyacrylamide used for?
  • Nonionic polyacrylamides are available from very low to very high molecular weights and are used in industrial wastewater treatment, mineral process, papermaking, and other industries. High-molecular-weight nonionic polyacrylamides are routinely used in the mineral processing industries as thickeners and flocculants , , . 34.2.5.
  • What is polyacrylamide used for?
  • Polyacrylamide and its co-polymers are used as flocculants or coagulants in industrial wastewater treatment .Homo-polymer is used in this application and can be either nonionic, cationic or anionic depending on the types of wastewater needs to be treated. Also polyacrylamide can be prepared either as linear or as cross-linked.
  • Can polyacrylamide based flocculants be used in wastewater treatment?
  • The existing polyacrylamide-based flocculants are widely used in the treatment of wastewaters with various compositions (Al-Karawi et al., 2011; Lin et al., 2017). The Saratov Chemical Plant of Acrylic Polymers Akripol currently develops and introduces new polyacrylamide-based modifications of flocculants into industry.
  • Which comonomer is used for the production of anionic polyacrylamides?
  • The workhorse comonomer for the production of anionic polyacrylamides is acrylate salts of acrylic acid. These anionic polymers can be prepared as various mono- and divalent metal salts and other positively charged inorganic and organic counterions of the polymerization of acrylic acid with acrylamide (see Fig. 34.4 ).