选择性絮凝的方法及其机理(II)  

The Method and Mechanism of Selective Flocculation(II)

作　　者：张建伟[1] 王中原[1] 

机构地区：[1]沈阳化工学院,辽宁沈阳110142

出　　处：《过滤与分离》2005年第2期1-3,41,共4页Journal of Filtration & Separation

基　　金：辽宁省教育厅科学研究计划资助项目(20040293).

摘　　要：对选择性絮凝的现有方法按照其特点进行了系统的分类,从吸附角度和动力角度两个大方面考虑选择性絮凝的方法。吸附角度又包括增减颗粒上的活性质点数、絮凝剂分子量、絮凝剂用量、分子识别和絮凝剂形态五个方面。文中的分类方式基本涵盖了所有的选择性絮凝方法,并对选择性絮凝方法的机理和分类规律进行了阐述。这里着重介绍除增减颗粒活性质点数外的其他方法,同时,根据选择性絮凝分类方法的规律,首次提出了几种新方法并进行了探索性论述,如用合适的剪切力提高絮凝的选择性等。In the view of adsorption and force,the selective flocculation method has been classified according to their characters.There are five aspects about adsorption. They are increasing and decreasing active sites of particle,molecular weight of flocculant,amount of flocculant, molecular recognition and conformation of flocculant.In this paper,almost all of the method and principle about selective flocculation were included.The method of increasing and decreasing active sites of particle has been described in our previous paper,and in this paper the others were introduced.Furthermore,some new methods were discussed for the first time,such as that suitable shear force promoting the selection of flocculation.

关 键 词：选择性絮凝 吸附 活性质点 剪切力 

分 类 号：TQ028.5[化学工程]