【摘要】 从水体中原始颗粒、絮凝剂和絮体 3个方面综述了絮凝形态学的研究进展 ,尤其是分形理论在絮凝理论与工程中的应用。絮体是具有自相似或自仿射和标度不变的分形结构 ,其分形维数是描述絮凝过程的重要因素。絮体分形结构导致了絮体碰撞的作用半径、有效密度等变化 ,从而对颗粒物分离过程有重要的影响。更多还原

【Abstract】 A critical review on the progress of flocculation morphology was put forward within the scope of raw particulate, flocculant and floc. The principle and application of fractral theory were especially introduced. Flocs are recognized as fractral objects with self_similar structure, which leads to the variation of their collision radius and effective density. This has very significant effects on separation processes (sedimentation, flotation and filtration). Fractral dimension is a key factor on describing the flocculation dynamics.更多还原