基于分形理论的有机高分子絮凝

在改性天然高分子絮凝剂（CSAX）处理同时含Cu^2＋和高岭土的悬浊液的废水絮凝实验中,显微镜照片研究显示絮凝体的表面和内部具有高度不规则性,絮凝体的形成过程具有分形特征.通过实验研究絮凝体的特性和分形维数之间的关系,分析了絮凝体的分形特征,在原水浊度为100 NTU,pH值为5.0,Cu^2＋的浓度为25 mg/L,CSAX的投加量为30 mg/L的条件下,CSAX的絮凝效果最好,形成絮凝体的分形维数为2.0.证明可以通过监测絮凝体的分形维数来控制絮凝过程.

Study on Organic Macromolecule Flocculation Based on Fractals Theory

The microscopic studies of flocs indicate that flocs＇ surface and interior presented highly irregularity. The results also indicated that flocs＇ structure and establishment possessed fractal characteristics when the waste water containing both Cu^2＋ and Kaolin was treated with modified natural polymer （CSAX） in flocculation experiment. The relationships between flocs＇ characteristics and fractal dimension were studied. It also analyzes factors about flocs＇ fractal characteristics in condition of keeping the turbidity to 100 NTU, the pH value to 5.0, the concentration of Cu^2＋ to 25mg/L and added quantity of CSAX to 30mg/L. The fractional dimension of the floc was calculated to be 2.0 in the best flocculation. The results were certain that the flocculation process can be controled by meteraging of the flocs＇ fractal dimension.