铝系混凝剂优势形态分析及其混凝特性  

The analysis of dominant species in aluminous coagulants and their coagulation properties

作　　者：刘丽冰 王希 杨承刚 安广宇[1] 王东升[1,2] LIU Libing;WANG Xi;YANG Chenggang;AN Guangyu;WANG Dongsheng(Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Science,Chinese Academy of Sciences,Beijing 100085;University of Chinese Academy Sciences,Beijing 100049;Nuclear and Radiation Safety Centre MEE,Beijing 102400)

机构地区：[1]中国科学院生态环境研究中心,中国科学院饮用水科学与技术重点实验室,北京100085 [2]中国科学院大学,北京100049 [3]生态环境部核与辐射安全中心,北京102400

出　　处：《环境科学学报》2020年第12期4249-4262,共14页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金重点项目(No.52030003);国家科技重大专项(No.2017ZX07108-002,2017ZX07501-002)。

摘　　要：聚合氯化铝(PACl)是常用的水处理混凝剂,在应用过程中通常表现出比传统铝盐更为优异的效果.研究表明,这种优异性能主要得益于其特殊的组成,特别是高分子聚合物Al13和Al30独特的物化特性.Al13和Al30是铝离子水解过程中的中间产物,在地球科学和环境化学等领域有着重要的研究价值.于水处理而言,二者的结构和分子特性是研究者关注的重点,大量研究基于此展开,很多重要的发现为实际应用奠定了基础.基于对PACl及其组成性质的研究,本文对PACl的混凝特性及其优势形态分子的分析进行了综合阐述.Polyaluminum chloride(PACl) is a common water treatment coagulant, which usually exhibits better effects than traditional aluminum salts in the practical application process. Lots of investigations have shown that the excellent performance is mainly due to the special composition, especially the unique physical and chemical properties of polymer Al13 and Al30. Al13 and Al30 are intermediate products during the hydrolysis process of aluminum ions, which possess important research value in the fields of earth science and environmental chemistry. With regard to water treatment, the structure and molecular characteristics of the two polymers are the studied focus to the researchers. A large number of investigations have been carried out and many important results have been discovered and provided important instructions for practical applications. Based on the studies of PACl and its properties, the coagulation characteristics of PACl and the analysis of its dominant species were comprehensively reviewed in this article.

关 键 词：水解 优势形态 AL13 Al30 混凝 反应机理 

分 类 号：X703[环境科学与工程—环境工程]