紫外/氯胺高级氧化法降解水中四环素的研究

Degradation of Tetracycline in Water by UV/Activated Monochloramine Process

环境中四环素类抗生素污染日益严重,为妥善解决该环境问题,研究了紫外光和氯胺(UV/NH_(2)Cl)组合工艺去除水中的四环素(TC)。结果表明,UV/NH_(2)Cl组合氧化工艺对TC的降解要优于UV光解和氯胺氧化。随着体系中氯胺物质的量浓度的增加,TC的降解也呈现出上升的趋势。而且,在UV/NH_(2)Cl组合工艺中TC的降解表现出一定的pH依赖性。本研究将为UV/NH_(2)Cl的工艺参数设置提供参考,同时为深入研究UV/NH_(2)Cl体系的内在机制提供科学的研究基础。

Tetracycline antibiotics are increasingly polluting the environment.In order to properly solve the environmental problems,this paper studies the combined process of ultraviolet light and chloramine(UV/NH_(2)Cl)to remove tetracycline from water.The results showed that the combined UV/NH_(2)Cl oxidation process had better degradation effect on TC than UV photolysis and chloramine oxidation.With the increase of chloramine concentration in the system,the degradation of TC also showed an upward trend.In addition,the degradation of TC in the combined UV/NH_(2)Cl process showed a certain pH dependence.The research in this paper will provide a reference for the setting of UV/NH_(2)Cl process parameters,and at the same time provide a scientific basis for in-depth study of the inherent mechanism of the UV/NH_(2)Cl system.