摘要
强化絮凝工艺已在去除有机污染物的水处理工艺中得到较好应用,但其作用机理一直未能得到明晰的结论,而且阳离子聚电解质强化絮凝具有“高效性”和“专属性”的问题也无法回答。近年来由于分子环境科学及先进化学分析手段的应用,基于不同絮凝化学成因的强化絮凝技术研究已成为环境水化学和水污染控制技术领域的研究热点。本文综述了国际上近年提出的专属吸附絮凝、聚电解质络合絮凝和胶束吸附絮凝等强化絮凝技术化学成因的研究现状,并对今后的研究提出了展望。
Enhanced flocculation has been applied for removal of organic pollutants in water treatment. However, the flocculation mechanism and the reason that cationic polyelectrolytes have the good efficiency and the specialization in enhanced flocculation haven＇t been clearly illustrated. In recent years, using molecular environmental science and advanced analysis techniques, study on enhanced flocculation that is based on different chemical characteristics of flocculation has been become to a research hotspot in environmental water chemistry and water treatment technology. In this paper, studies on the chemical characteristics of enhanced flocculation are generally reviewed. Future trends of development in this field are also proposed.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2007年第2期205-211,共7页
Progress in Chemistry
基金
国家高技术发展计划(863)项目(No.2002AA601011-02-03)
国家重点基础研究发展规划(973)项目(No.2002CB412308)资助
关键词
有机污染物
强化絮凝
阳离子聚电解质
化学成因
organic pollutants
enhanced flocculation
cationic polyel.ectrolytes
chemical characteristics
