high molecular-weight polymer flocculation treatment of waste

high molecular-weight polymer flocculation treatment of waste
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  • What are polymer flocculants used for?
  • Polymer flocculants are widely used in water treatment, serving as a primary coagulant of more often used as a means of enhancing the floc strength of dewaterability. There are many kinds of polymers which have various molecular weight, charge type (nonionic, anionic, cationic, or amphoteric), and charge density (Fig. 4).
  • 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.
  • How does polymer-assisted flocculation work?
  • Polymer quickly adsorbed on kaolinite basal planes and subsequently reached steady state, giving a maximum mass uptake of 18 mg m−2. Most of the research on polymer-assisted flocculation investigates the effect of polymer molecular weight and con-centration on flocculation performance. The flocculation performance essentially Figure 24.
  • Does molecular weight affect flocculation performance?
  • Most of the research on polymer-assisted flocculation investigates the effect of polymer molecular weight and concentration on flocculation performance. The flocculation performance essentially reflects interactions between polymer chains and suspended particles.