manufacturers of modeling nonionic polyacrylamide flocculation using

manufacturers of modeling nonionic polyacrylamide flocculation using
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  • Can ionic polymers be used as flocculants?
  • Anionic polymers used as flocculants can also carry cutting in exploration drilling. These polymers are expected to encapsulate particles, making flocculation unlikely. Centrifuging cuttings-laden fluids struggles to remove fines prior to fluid return. Anionic flocculants are ineffective, but nonionics are shown to induce aggregation.
  • Is magnafloc a polyacrylamide homopolymer?
  • Magnafloc® 800HP (BASF) is nominally a polyacrylamide homopolymer, although may contain up to 1 % of anionic functionalities. Fig. 3 b shows that in contrast to anionic flocculants, applying the nonionic 800HP at a dosage of only 56 g t −1 was able to induce significant aggregation of solids within the drilling fluid.
  • Does anionic polyacrylamide improve coagulation-flocculation process?
  • Aguilar, M. I. et al. Improvement of coagulation-flocculation process using anionic polyacrylamide as coagulant aid. Chemosphere 58, 47–56 (2005). Muller, G., Fenyo, J. C. & Selegny, E. High molecular weight hydrolyzed polyacrylamides.
  • Do nonionic flocculants reduce aggregation of fine particles?
  • However, nonionic flocculants were found to be far more effective in inducing aggregation of fine particles, which in field trials (involving dosing in advance of a decanter centrifuge) typically led to a reduction in suspended centrate solids of ∼ 50 %.