The development history of polyferric sulfate (PFS)

Polyferric sulfate (PFS) until now has been used for many years, but we do know this product? Many times we just put it as a tool in our water, we should try to understand deeper, I believe there will be an unexpected surprise, we have to look at our products, but what better capabilities.

PFS was successfully developed in Japan in 1976, a new type of inorganic coagulants in the 1980s put into industrial production, industrial water and industrial wastewater and drinking water treatment, with good coagulation performance, less dosage, treatment water quality, treatment cost is low.

As China's water industry's rapid development, we have begun to study the production of PFS, and achieved good results. Zhengzhou Vidar Water filter in an efficient, inexpensive, non-toxic and as a starting point, the successful development of an efficient ferric sulfate coagulant, the product of the indicators have reached the superior products, long-proven by many users: Vidar Water polyferric sulfate with coagulation performance, low dosage, the treated water quality, handling charges low.

Vidar Water PFS is widely used in steel papermaking wastewater, wastewater, sewage, mining waste, chemical waste and thermal power to the water treatment. PFS has a faster coagulation resistance, to remove the water COD and BOD, suspended solids SS, heavy metals, color, odor, and oil and other impurities. PFS is a dilute sulfuric acid and ferrous sulfate as raw materials by the nitrite adjusted polymerization system, the solid product was a pale yellow powder. Polyferric sulfate after hydrolysis in water and produce a variety of high polynuclear ions, suspended particles in water for charge neutralization, reducing micelles ζ potential, the colloidal particles agglomerate with each other, while producing adsorption, bridging cross-linking. PFS advantage is faster flocculation, excellent ease of dehydration cake compression, the disadvantage is corrosive production facilities, and waste water treatment bleaching not thorough enough. PFS is brownish yellow liquid viscous liquid, odorless or slight chlorine odor. The relative density of D20 / 4 1.450, acidity, soluble in water. 

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