水生植物对水体中磺胺甲恶唑的去除机理研究
摘 要
近些年来，人类和动物使用的各种药物作为一类新型微污染物,以其对水环境造成的危害在世界范围内引起国内外学者的广泛关注。水体中药物的环境水平、环境行为和生态毒理学都是当前国际研究的热点。其中抗生素类药物以其使用范围广、数量大、在水体中检出频率高成为研究重点。抗生素类药物在水环境中的半衰期虽然较持久性有机物短，但由于其不断进入水体，表现为持续存在的状态，为假持久性环境污染物。这类污染物以各种途径进入水环境，长期存在于水体中，会对水生生态系统产生一系列的危害作用。 然而常规的污水处理技术无法有效去除这类物质，一些高级氧化处理技术虽然可以有效去除这类物质，但成本高，且容易造成二次污染。植物修复技术具有造价低、处理简单、生态效应好等优点，在有机药物污染治理方面具有很大潜力。目前将水生植物应用于有机药物污染治理，尤其是水体中抗生素类污染药物处理方面的研究报道都还很鲜见。
关键词：水生植物；抗生素；磺胺甲恶唑；去除
Removal mechanism of sulfamethoxazole in water by aquatic plants
ABSTRACT
In recent years, a variety of drugs used by human and animals as a new type of micro pollutants, with its harm to the water environment in the world caused widespread concern of scholars at home and abroad. The environmental level, environmental behavior and ecotoxicology of drugs in water are the focus of current international research. Among them, antibiotics become the focus of research because of their wide range of use, large quantity and high detection frequency in water. Although the half-life of antibiotics in the water environment is shorter than that of persistent organic matter, they are pseudo persistent environmental pollutants because they continue to enter the water. These pollutants enter the water environment in various ways and exist in the water for a long time, which will produce a series of harmful effects on the aquatic ecosystem. However, the conventional wastewater treatment technology can not effectively remove this kind of material, some advanced oxidation treatment technology can effectively remove this kind of material, but the cost is high, and it is easy to cause secondary pollution. Phytoremediation technology has the advantages of low cost, simple treatment and good ecological effect, which has great potential in the treatment of organic drug pollution. At present, there are few reports on the application of aquatic plants in the treatment of organic medicine pollution, especially the treatment of antibiotics in water.
Key words: Aquatic plants; Antibiotics; Sulfamethoxazole; Removal
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