Experimental Research on Removal of UV ₂₅₄ by PFS in Pi River water with low turbidity

摘要

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.