研究利用煤矸石及硫铁矿烧渣作原料制备PSAAF并用于印染废水的处理结果表明,PSAAF有良好的除浊、脱色和除COD性能;尤其对亲水性染料,具有独特的去除效果对pH为6～9的实际废水,PSAAF的脱色率和COD去除率比常规絮凝剂均提高30%～40%PSAAF的脱色机理是水合铝、铁离子的凝聚作用和聚硅酸的絮凝而产生的共沉淀图8,表1,参12 The results of the study on PSAAF prepared by using coal gangue and pyrite slag as raw materials for printing and dyeing wastewater show that PSAAF has excellent turbidity removal, decolorization and COD removal performance. Especially for hydrophilic dyes, it has unique removal effect on pH For the actual wastewater from 6 to 9, the decolorization rate and COD removal rate of PSAAF are increased by 30% ~ 40% compared with conventional flocculants. The bleaching mechanism of PSAAF is the result of the aggregation of aluminum hydrate and iron ions and the flocculation of polysilicic acid Precipitation Figure 8, Table 1, reference 12