wastewater treatment anionic polyacrylamide flocculant in spain

wastewater treatment anionic polyacrylamide flocculant in spain
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  • 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.
  • Can anionic polyacrylamide be used in wastewater treatment?
  • Synthetic flocculants represented by anionic polyacrylamide (APAM) have attracted more and more attention in the field of wastewater treatment (Desai and Murthy 2012; Ma et al. 2013 ). The anionic chemical group in APAM can neutralize the positively charged colloidal particles in wastewater and make them destabilized (Zhao et al. 2018 ).
  • 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.
  • Can anionic microblocks improve the flocculation performance of high turbidity water?
  • Flocculation experimental results demonstrated that the anionic microblocks in the template copolymer could enhance the charge neutralization and bridging ability, and therefore an excellent flocculation performance of treating high turbidity water was observed. 1. Introduction