摘要
抗生素作为医疗业和农业使用量最大的药物之一,由于其本身的特性,很容易进入沉积物-水环境中。抗生素在沉积物中的吸附过程是影响抗生素的反应活性、可移动性、持久性及生物可利用性的关键过程。本文选择四环素类、喹诺酮类、磺胺类和大环内酯类4类常用抗生素,在总结了这4类抗生素在湖泊沉积物中污染状况的基础上,分析了抗生素在沉积物中的吸附机制,并归纳论述了pH值、盐度、重金属离子、表面活性剂以及水动力条件对其在沉积物上吸附的影响机制。
Antibiotics are used in large amounts in modern husbandry and medical industry. Due to their properties, they enter the sediment-water environment easily. Sorption process is a key determinant of the reactivity, mobility, persistence and bioavailability of pollutants. In this paper, sorption mechanisms for four types of commonly used antibiotics （ tetracyclines, quinolones, sulfonamides and macrolides） in sediments were discussed, and the effects of pH, salinity, heavy metal ions, surfactant and hydrodynamic conditions on sorption of four typical antibiotics on sediments were also summarized.
出处
《四川环境》
2013年第2期87-95,94-95+93,共9页
Sichuan Environment
基金
国家重大基础"973"研究项目(2010CB429006)
"十二五"水专项2012ZX07101-008
江苏省杰出青年基金项目(BK2012037)
关键词
抗生素
沉积物
吸附机制
影响因素
Antibiotics
sediments
sorption mechanisms
effect factors
