环糊精在水处理中应用及研究进展  

Application and Research Progress of Cyclodextrin in Water Treatment

作　　者：齐一凡 Qi Yifan(Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学,上海200092

出　　处：《广东化工》2022年第7期101-103,共3页Guangdong Chemical Industry

摘　　要：随着经济社会与文化的快速发展,各类化工产品被广泛应用到人们的生活中,为生活带来了许多便利,然而许多产品身在生产的过程中会引起一系列的环境问题。生产过程中产生的废水中含有许多药物及新型微污染物,比如:内分泌干扰物、抗生素等。目前常用的污水处理技术,比如:沉淀、过滤、消毒等,很难保证这些低含量的新型污染物的有效去除。由于环糊精外亲内疏的特殊性质,经过多年的研究,环糊精已经广泛用于多个领域,如医学、环境、食品及化妆品等。其中环境领域主要利用环糊精的疏水空腔,通过包合作用对污染物进行附剂,并且环糊精腔口处的羟基也使得环糊精已于改性,达到各种需要的吸附功能。常用的改性手段是在碱性条件下与环氧氯丙烷进行聚合,形成环糊精聚合物(CDP)。而后,研究者们发现,将环糊精与刚性有机物进行聚合,所形成的环糊精聚合物能够达到极高的比表面积,再吸附过程中基本符合拟二级动力学方程,并且能够达到极高的吸附速率常数。本篇文章通过对环糊精及环糊精聚合物对污染物吸附相关的文献学习,介绍通过吸附的方法进行有机微污染物的去除。With the rapid development of economy, society and culture, all kinds of chemical products are widely used in people’s life, which has brought a lot of convenience to life. However, many products will cause a series of environmental problems in the process of production. The wastewater produced in the production process contains many drugs and new micro-pollutants, such as endocrine disruptors, antibiotics and so on. At present, the commonly used sewage treatment technologies, such as sedimentation, filtration and disinfection, are difficult to ensure the effective removal of these low-content new pollutants. CDs is green, non-toxic, degradable and environment-friendly, and can be recycled by some means. Due to the special properties of cyclodextrin, cyclodextrin has been widely used in many fields, such as medicine, environment, food and cosmetics. In the environmental field, the hydrophobic cavity of cyclodextrin is mainly used to adsorb pollutants through inclusion, and the hydroxyl at the mouth of cyclodextrin cavity also makes cyclodextrin modified to achieve various required adsorption functions. The common modification method is to polymerize with epichlorohydrin under alkaline conditions to form cyclodextrin polymer(CDP). Then, the researchers found that the cyclodextrin polymer formed by the polymerization of cyclodextrin and rigid organic matter can reach a very high specific surface area,basically conforms to the pseudo second-order kinetic equation in the process of re adsorption, and can reach a very high adsorption rate constant. This paper introduces the removal of organic micro pollutants by adsorption through studying the literature related to the adsorption of pollutants by cyclodextrin and cyclodextrin polymers.

关 键 词：环糊精 吸附 微污染物 外亲内疏 疏水吸附 

分 类 号：X22[环境科学与工程—环境科学]