Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju 500-712, Republic of Korea.
J Hazard Mater. 2012 Aug 15;227-228:237-42. doi: 10.1016/j.jhazmat.2012.05.038. Epub 2012 May 28.
Recently, the occurrence of antibiotics in sewage treatment plant effluent, as well as drinking water, has raised concern about their potential impacts on the environment and public health. Antibiotics are found in surface and ground waters, which indicate their ineffective removal by conventional wastewater treatment processes. Therefore, advanced oxidation processes (AOPs) have received considerable attention for the removal of antibiotics. This study was conducted to evaluate the degradation and mineralization of antibiotics (sulfamethoxazole and chlortetracycline) using an electron beam, ozone and UV, and the change of toxicity. Also, the electrical energy consumption based on the EE/O parameter (the electrical energy required per order of pollutants removal in 1 m(3) wastewater) was used to quantify the energy cost associated with the different AOPs (electron beam, ozone and UV) for the degradation of antibiotics. The results showed that an electron beam effective for the removals of both sulfamethoxazole and chlortetracycline in aqueous solutions. However, degradation of the target compounds by ozone and UV showed different trends. The oxidation efficiency of each organic compound was very dependent upon the AOP used. Algal toxicity was significantly reduced after each treatment. However, based on the electrical energy, the electron beam was more efficient than ozone and UV. Electron beam treatment could be an effective and safe method for the removal of antibiotic compounds.
最近，污水处理厂出水中以及饮用水中抗生素的出现引起了人们对其对环境和公众健康的潜在影响的关注。抗生素存在于地表水和地下水中，这表明它们不能被传统的废水处理工艺有效去除。因此，高级氧化工艺（AOPs）已受到广泛关注，用于去除抗生素。本研究旨在评估电子束、臭氧和 UV 对抗生素（磺胺甲恶唑和金霉素）的降解和矿化作用，以及毒性的变化。此外，还基于 EE/O 参数（每去除 1 m(3)废水中污染物所需的单位电量）来量化不同 AOPs（电子束、臭氧和 UV）用于降解抗生素的能源成本。结果表明，电子束对磺胺甲恶唑和金霉素在水溶液中的去除均有效。然而，臭氧和 UV 对目标化合物的降解表现出不同的趋势。每种有机化合物的氧化效率都非常依赖于所使用的 AOP。每种处理方法后藻类毒性均显著降低。然而，根据电能消耗，电子束比臭氧和 UV 更有效。电子束处理可能是去除抗生素化合物的一种有效且安全的方法。
