微囊藻毒素的环境吸附行为研究进展

Advance in Research of Microcystin Sorption in the Environment

微囊藻毒素(Microcystins,MCs)是从蓝藻水华中分离出的天然单环多肽毒素。由于能损害肝脏诱发肝癌,MCs进入水体后对公众健康构成了严重威胁。文章介绍了MCs的结构性质特点,综述了MCs在沉积物/水体系中的吸附行为,比较了沉积物中各组分对MCs的吸附能力和作用机理,讨论了各种人工吸附剂吸附去除水体中MCs的主要机制,实际效果和影响因素,以及不同类型的人工材料在饮用水处理工艺中的优点和不足,以上讨论将为环境水体中MCs的有效去除提供思路。

Microcystins （MCs）, a family of natural heptapeptides released from cyanobacteria blooms, may cause liver damage and induce liver cancer. Therefore, the natural water contaminated by MCs poses a serious threat to public health. This study presents the structures and the properties of MCs, summarizes in details the sorptive behavior of MCs in sediment/ water systems, compares the capacities and mechanisms of MCs binding onto different sediment ingredients, further discusses the dominant mechanism, practical removal effects and influence factors of MCs sorption onto various artificial adsorbents from water, describes different types of materials applied in treatment of drinking water from advantages to shortages. The discussions would be helpful for effective removal of MCs from environmental water bodies.