Kaolin suspension compound processed by biological flocculant and ferric salt

By using kaolin suspension as the research object and the coagulation test as the basis, the optimum dosage and the fractal floc characteristics of high turbidity and low turbidity water processed by the biological flocculant (BFs) and FeCl3 were investigated. The results demonstrated that the optimum dosage of the biological flocculants and FeCl3 was 10.5mL/L and 5.25mL/L, re- spectively. The flock fractal dimension with optimal treatment effect and stability was between 1.4- 1.6.