water treatment flocculant polymer flocculation anionic in canada

water treatment flocculant polymer flocculation anionic in canada
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  • Which flocculants are used in wastewater treatment?
  • Summary of chitosan, cellulose, and alginate-based flocculants used in the treatment of wastewater TOC, total organic carbon; CNC, cellulose nanocrystal. Stimuli-responsive polymers are a class of macromolecules that undergo conformational changes and switch their solubility when the right stimulus is applied.
  • Are cationic polymers used in direct flocculation?
  • On the other hand, polymeric flocculants, especially cationic polymers, can be used in direct flocculation processes, which possess dual functions of coagulation and flocculation: neutralizing the negative charges and bridging the aggregated destabilized particles (Chong, 2012, Lee et al., 2014).
  • How effective are flocculants in industrial applications?
  • The effectiveness of flocculants in industrial applications is often assessed based on a certain set of parameters that reflect how well the polymer can flocculate a given solids suspension. For example, a polymer may produce a clear supernatant, but it may take an unreasonably long time to reach this outcome.
  • What are new flocculants based on?
  • Development of new flocculants based on carbon and non-carbon nanomaterials (e.g., dendrimers, zeolites, hyperbranched polymers, or graphite oxide) have also been discussed in works on desalination of sea water and treatment of surface and groundwater [ 225, 226, 227 ].