首页 馆藏资源 舆情信息 标准服务 科研活动 关于我们
现行 AWWA ACE95051
到馆提醒
收藏跟踪
购买正版
Effect of Impeller Geometry and Various Mixing Patterns on Flocculation Kinetics of Kaolin Clay Using Ferric Salt 叶轮几何形状和不同混合方式对铁盐絮凝高岭土动力学的影响
发布日期: 1995-01-01
很少有研究涉及混凝过程中混合的流体力学方面。一些环境工程研究人员在单独的研究中表明,快速和慢速混合阶段对水处理中的混凝过程都很重要。混凝过程中的混合可以有两种不同的方式;第一,通过改变搅拌设备,第二,通过改变搅拌方式的时间和强度。因此,本研究的主要目的是调查和确定不同的混合装置和模式对在温水和冷水温度下使用硝酸铁混凝剂絮凝高岭土-粘土悬浮液动力学的影响- 化学条件。作者描述了一系列实验,并详细讨论了使用不同物理化学变量组合测试的不同混合变量的程序和结果,如快速混合强度、快速混合模式、混凝剂注入模式、投加溶液浓度和缓慢混合强度和模式。
Very little research has been performed involving the hydrodynamic aspects of mixing in the coagulation-flocculation process. Some researchers in environmental engineering have shown in isolated studies that both rapid and slow mixing stages are important to the coagulation-flocculation process in water treatment. Mixing in the coagulation-flocculation process can be varied in two different ways; first, by changing the mixing equipment and second, by changing the mixing pattern in time and intensity. Thus the prime objective of this study was to investigate and determine the effect of different mixing devices and patterns on the kinetics of flocculating kaolin clay suspension at both warm and cold water temperatures using ferric nitrate coagulant under a number of physico-chemical conditions. The authors describe a series of experiments and provide a detailed discussion of the procedures and results of different mixing variables being tested with different combinations of physico-chemical variables such as rapid mixing intensity, rapid mixing pattern, coagulant injection pattern, dosing solution concentration, and slow mixing intensity and pattern.
分类信息
发布单位或类别: 美国-美国给水工程协会
关联关系
研制信息
相似标准/计划/法规