聚合氯化铝、聚合硫酸铁、聚合硫酸铝铁除磷效果对比研究

Comparative Study on the Phosphorus Removal Effect of PAC, PFS and PAFS

以人工配制含磷废水和实际含磷废水为研究对象,重点考察了聚合氯化铝(PAC)、聚合硫酸铁(PFS)和聚合硫酸铝铁(PAFS)的最佳除磷pH值范围、最佳投加量范围以及对不同类型含磷废水的除磷性能。结果表明,3种絮凝剂均在pH=6的条件下除磷效果最佳,其中,PFS表现出良好的除磷性能,是一种高效除磷混凝剂。

The lab-simulated phosphorous wastewater and its real counterpart were investigated with a focus on locating the optimum pH value, the proper dosage and the removal performances of phosphorus from different wastewater of polyaluminum chloride（PAC）, polyferric sulfate（PFS） and polymeric ferric aluminum sulfate（PAFS）. It was shown that pH=6 was an optimized value while PFS showed the best performance among the three flocculants, which proved that PFS was a high performance flocculant.