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Through beaker test, it was analyzed the effect on the removal of turbidity, chroma and UV 254  in PI River water with low turbidity by poly-ferric sulfate(PFS).The results showed that it has good effect on removing turbidity and chroma by adding PFS, but it was normal to UV 254 , not exceed 50%,with the increase of PFS dosage, the turbidity and chroma removal trend is similar to that of UV 254 . For turbidity removal, the optimal dosage of PFS was 70 mg / L, and for UV 254  removal, the optimal pH value range is not neutral, and it is speculated that PFS mainly neutralizes pollutants during coagulation in PI River water.

Experimental Research on Removal of UV254 by PFS in Pi River water with low turbidity