For poly aluminium chloride , the maximum mean diameter is 0 . 45mm , and the fractal dimension is about 1 . 65 . for aluminium sulfate , the maximum mean diameter is 0 . 30mm , and the fractal dimension is about 1 . 78 在pac条件下形成的絮凝体最大粒径达到0 . 45mm ,分形维数在1 . 65左右;而在硫酸铝条件下絮凝体最大粒径为0 . 3mm ,分形维数在1 . 78左右。
The result shows that the optimum coagulation ph of isp is about 7 - 8 . for aluminium sulfate ( al2 ( 804 ) 3 ) , the optimum dose is 1 . 875mgal / l , while for poly aluminium chloride ( pac ) , the optimum dose is 1 . 5mgal / l . both coagulants can achieve 90 % turbidity removal 实验结果表明:无机悬浮颗粒体系的最佳混凝ph值在7 8之间,在硫酸铝和pac混凝剂条件下的最佳投药量分别为1 . 875mgal l和1 . 5mgal l ,两者对浊度都能达到90左右的去除。