PFSS and PSFS with high concentration were prepared respectively by composite techniques, and some influencing factors, flocs properties and residual Fe content were analysed.

• 采用复合共聚工艺分别制备了高浓度的聚合硫酸铁硅(PFSS)和聚合硅酸铁(PSFS),通过实验对影响絮凝效果的因素、絮体沉降特性以及处理后水中残留铁量进行了分析。