三维DLA模型与絮凝工艺影响因素分析  

Analysis of the Contributing Factors of Flocculation Process by Three-dimensional DLA Model

作　　者：南军[1] 郭航[1] 任鹏飞[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090

出　　处：《工业安全与环保》2013年第7期4-6,20,共4页Industrial Safety and Environmental Protection

基　　金：城市水资源与水环境国家重点实验室(哈尔滨工业大学)自主课题(课题编号:2012DX07)

摘　　要：利用Matlab软件建立的三维扩散有限凝聚(DLA)模型,将三维DLA模型中的几个控制参数与实际絮凝工艺中的影响因素联系起来,通过改变释放粒子数目、初始释放半径、碰撞并粘附的概率,解释实际絮凝工艺中絮体成长过程变化规律,低浊水难以处理的原因,以及不同絮凝剂时不同碰撞并粘附的概率对絮体成长的影响。Matlab software is used to set up three-dimensional DLA model and several parameters in three-dimensional DLA model are connected with the contributing factors of flocculation process,in which the growth rules of the floc in the flocculation process and the causes that low turbidity water is hard to be treated are described,as well as the influences of the adhesion rate under different flocculants and collisions on floc growth,by ways of changing the number of released particles,initial release radius and adhesion rate by collision.

关 键 词：三维DLA 分形维数 絮体成长 低浊水 碰撞几率 

分 类 号：X703[环境科学与工程—环境工程]