Polymeric ferric sulfate and ferrous sulfate are actually such a relationship
Many people do not understand the polyferric sulfate and ferrous sulfate mixed, they are not a product, but are all iron salt coagulants, performance and effect on a lot of the same place. Ferrous sulfate hydrolysis attack 2 valence iron ions, polymeric ferric sulfate hydrolysis attack 3 valence iron ions, ferrous sulfate has oxidation recovery properties, and polymeric ferric sulfate does not have. In terms of use, polyferric sulfate has relatively strong stability, is easier to store than ferrous sulfate, forms larger alum flowers, more compact flocs, and has less dosage than ferrous sulfate. However, polyferric sulfate is produced with ferrous sulfate as raw material, or iron ore as raw material, that is to say, ferrous sulfate is the raw material for PFS production.
Polymeric ferric sulfate is a small yellowish brown particle, its aqua is a reddish brown or dark brown or light yellow amorphous powdery solid, easily soluble in water, the aqueous solution is a reddish brown transparent solution, hygroscopic. Polymeric ferric sulfate is widely used in drinking water, industrial water, all kinds of industrial wastewater, urban sewage, sludge dewatering and other pollution disposal, especially to resist high temperature, low turbidity of water has obvious results.
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