| 1. | Spectrum analysis of flocs diameter in the changjiang estuary 长江河口细颗粒泥沙絮凝体粒径的谱分析 |
| 2. | And using the function relation between the projected area of floes and the maximum length to calculate fractal dimensions of floes formed in some different flocculation condition 而投药量不足或投药量过多时所形成的絮凝体的分形维数值均偏低,分别为1 . 34一1 . 65和1 . 31一1 . 58 。 |
| 3. | In this way thick and big floes are formed . this process decides that floes have self - similarity and dilation symmetry in a certain extent , and they are two important characteristics of the fractal 这一过程决定了絮凝体在一定范围内具有自相似性和标度不变性,这正是分形的两个重要特征。 |
| 4. | With the fractal theory and some sorts of kinetic growing model of fractal floes put forward by written , menkin and so on , this paper designs many static flocculation experiments to research the modal characteristic of the floc 实验结果表明,当采用硫酸铝作为混凝剂时,在不同混凝条件下形成的絮凝体的分形维数值为1 . 31 ~ 2 |
| 5. | 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。 |
| 6. | The flocculation morphology is an advanced subject that researchs flocculation processes from the reality sha pe and size of the colloid and the flocculating agent in the water , according to the reality structure of flocks 混凝形态学就是从水中胶体颗粒和所加混凝剂在水中的真实形状和大小,以及由它们形成的絮凝体真实结构出发来研究整个混凝过程的一门较高层次的学科。 |
| 7. | While fractal dimensions of floes are 1 . 34 - 2 . 31 during different flocculating condition when the flocculating agents is polyaluminum chloride ( pac ) . moreover , under the best added quantity condition ( when the raw water is 170mg / l , the best added quantity of aluminum sulfate is 3 . 0mg / l and the best added quantity of pac is 2 . 0mg / l ) , no matter 若先投加cac12再投加pac ,混凝效果最好的水样的絮凝体的分形维数为1 . 48 , cod去除率为93 % ,此时caci :的投加量为1 |
| 8. | In this paper , to investigate the coagulation process of inorganic suspended particles ( isp ) , online monitoring of the coagulation process was conducted by using pda2000 . the process of floe formation and the morphological characteristics of floes were investigated in detail through tv - microscope . the mechanism of partical collision and coagulation kinetics were preliminary discussed 为了考察无机悬浮颗粒体系的混凝过程,研究絮凝体的构造特征,本文通过pda2000对无机悬浮体系的混凝进行光学在线监测,运用电视显微摄像仪对絮凝体的形成过程及其形态学特性进行了系统的研究,对胶体颗粒碰撞机制及混凝动力学作了初步探讨。 |
| 9. | By designing some static flocculation experiments during different flocculating agent and different flocculating condition , the modal characteristic of floes are observed in experimented process and microscope photo of floes are shot . afterwards fractal dimensions of floes are calculated according to microscope photo of floes . the experimental result suggested that fractal dimensions of flocs are 1 . 31 - 2 . 38 during different flocculating condition when the flocculating agent is aluminum sulfate 当pac投加量为5 . omg / l并采用caci :为助凝剂时,若先投加pac再投加cacb ,混凝效果最好的水样的絮凝体的分形维数为2 . 43 ,化学需氧量去除率94 . 7 % ,此时的cacb投加量为1 . 5m留飞。 |
| 10. | The pullulation of floes is a random process and it has nonlinear character . if the fragmentation of floes is not considered , the routine flocculation process is to form the small group from initial particle and the big group from small groups . finally the biggest group is formed from those big groups 由于絮凝体的成长是一个随机过程,具有非线性的特征,如果不考虑絮凝体破碎的话,常规的絮凝过程是由初始粒子结成小的集团,小的集团又结成大的集团,然后结成更大的集团,这样一步一步成长为粗大絮凝体。 |