The difference between polymeric ferric sulfate and ferrous sulfate
Release time: 2024-09-21
Polymeric ferric sulfate and ferrous sulfate look at the name almost, in fact, they are not the same kind of products.
Polymeric ferric sulfate and ferrous sulfate look at the name almost, in fact, they are not the same kind of products. 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. Both belong to the iron coagulant, can resist the pollutants in wastewater after the suspension of coagulation and sedimentation removal. Ferrous sulfate and polymeric ferric sulfate removal of wastewater in the SS reason is the same, and ferrous sulfate to resist the decolorization results better.
Polymeric ferric sulfate: the status of polymeric ferric sulfate is light yellow amorphous powder solid, easily soluble in water, aqueous solution is red brown transparent solution, hygroscopic. Polyferric sulfate is usually 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. Polyferric sulfate coagulation and decolorization: abnormal resistance to the decolorization of sulfide and disperse dye wastewater, polymeric ferric sulfate anomaly has very good disposal results. Its decolorization principle and ferrous sulfate does not fit, it is important that the polymerization of ferric sulfate is not a recovery agent, nor is it an oxidant, the suspension is not the restoration of oxidative decolorization disposal. But the use of its in the water naturally generated ferric hydroxide, polynuclear complexes with selected adsorption of infected materials of dye wastewater in acidic groups suspended adsorption precipitation disposal. The decolorization results can reach 94 ~ 98%. Generally, the presence of wastewater chromaticity is often accompanied by the presence of COD.
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