pfs / polymer ferric sulphate/pfs / polymer ferric at germany

pfs / polymer ferric sulphate/pfs / polymer ferric at germany
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  • What is poly ferric sulfate (PFS)?
  • Poly ferric sulfate (PFS) with the general formula of [Fe2 (OH) n (SO4)3-n/2] m (n < 2, m > 10) is a relatively new kind of inorganic coagulant. It has been reported by several researchers that it e...
  • Why are PFS coagulants better than ferric sulphate?
  • Therefore, as the PFS coagulants consist mainly of polymeric species, they exhibit better coagulation behaviour. It is worth noting that for a 90% removal efficiency, only 20 mg/l of PFS are required, whereas the respective dosage of ferric sulphate in this case is much higher, i.e. 30 mg/l.
  • Is PFS a polymeric salt?
  • In polymeric form, PFS is one of the pre-hydrolysing metallic salts with the chemical formula [Fe2 (OH) n (SO4)3−n/2] m (where, n < 2, m > 10) and has a dark brownish red colour as well as is more viscous and less corrosive. PFS has an amorphous structure with small traces of crystallinity, containing both hydroxyl and sulphate functional groups.
  • Does polyferric sulphate remove algae?
  • Preparation and uses of polyferric sulphate, US Pat., 5,785,862, 1998. Search in Google Scholar Jiang, J. Q., N. J. D. Graham, and C. Harward. Comparison of polyferric sulphate with other coagulants for the removal of algae and algae-derived organic matter.