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

Abstract

Through beaker test, it was analyzed the effect on the removal of turbidity, chroma and UV254 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 UV254, not exceed 50%,with the increase of PFS dosage, the turbidity and chroma removal trend is similar to that of UV254. For turbidity removal, the optimal dosage of PFS was 70 mg / L, and for UV254 removal, the optimal pH value range is not neutral, and it is speculated that PFS mainly neutralizes pollutants during coagulation in PI River water.