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Polyaluminium ferric chloride

PAC polyaluminium ferric chloride from Weifang JS is a very efficient coagulant used to treat potable water. Its wide pH and temperature application ranges enable it to be used in a variety of treatment processes, which results in higher plant capacity, lower operating costs, and a decreased need for pH adjustment chemicals.

The present study compares the effectiveness of alum, ferric chloride, and polyaluminium chloride (PAC), aided by anionic polyacrylamide, to remove iron from automotive wastewater. PAC had the highest iron removal of 98% under an optimum dose of 2 mg/L, while alum removed 99% and ferric chloride removed only 24% under an optimum dose of 4 mg/L.


Weifang JS pac (poly aluminium chloride) was synthesized by the reaction of synthetic cryolite mother liquor with bauxite, calcium aluminate, and HCl. The PAC produced under the optimized preparative conditions would dissolve out a higher amount of aluminum while producing a small amount of water-insoluble CaF2 and CaSiF6.

Coagulation tests revealed that the specially synthesized PAC had better coagulation performance than commercial PAC and PAFC. It also performed well in TSS and COD removal.

Besides, the synthesized PAC was highly soluble in water, and the dosage required for optimum turbidity removal was lower than that of other coagulants. This allowed for a more economical treatment of industrial wastewater. The PAC could be used as an alternative to the alum-salt-based coagulant. It was also practical and environmentally friendly.

Why choose Weifang JS Polyaluminium ferric chloride?

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