Department of Environmental Technologies, Faculty of Marine and Environmental Sciences, University of Cadiz, Puerto Real, 11510 Cadiz, Spain.
Molecules. 2022 Jul 14;27(14):4507. doi: 10.3390/molecules27144507.
Different advanced oxidation processes (AOPs) (ultraviolet radiation, hydrogen peroxide photolysis and photo-Fenton) were applied to test the degradation of terbuthylazine in three types of water: (a) ultrapure water, (b) surface water from the Gaditana area (Los Hurones reservoir, Cádiz, Spain) and (c) groundwater from the Tempul spring in Jerez de la Frontera (Cádiz, Spain). The experiments were carried out on a laboratory scale, using two different types of reactors, batch and semi-continuous. In batch reactors, the most efficient process for the experiments carried out with both ultrapure water and underground groundwater was ultraviolet radiation, whereas for surface water from the Gaditana area, the process that obtained the best results was the photolysis of hydrogen peroxide with 2.5 mg L of HO. In semi-continuous reactors, the most efficient process was the photolysis of hydrogen peroxide with 2.5 mg L of HO for all the matrices studied. In both types of reactors, terbuthylazine degradation percentages higher than 90% were achieved; the main difference was in the reaction time, which varied from minutes in the batch reactor to seconds in the semi-continuous reactor. In all the applied AOPs, N-terbutyl-6-hydroxy-N'ethyl-1,3,5-triazine-2,4-diamine (TBA-212) was generated as a reaction intermediate.
不同的高级氧化工艺（AOPs）（紫外线辐射、过氧化氢光解和光芬顿）被应用于测试特丁津在三种水中的降解：（a）超纯水，（b）来自加迪塔纳地区（西班牙加的斯的洛斯赫罗内斯水库）的地表水，以及（c）来自赫雷斯德拉弗朗特拉的坦普尔泉的地下水。实验在实验室规模下进行，使用两种不同类型的反应器，间歇式和半连续式。在间歇式反应器中，对于使用超纯水和地下地下水进行的实验，最有效的工艺是紫外线辐射，而对于来自加迪塔纳地区的地表水，效果最好的工艺是在 2.5mg L 的 HO 下进行的过氧化氢光解。在半连续式反应器中，对于所有研究的基质，最有效的工艺是在 2.5mg L 的 HO 下进行的过氧化氢光解。在这两种类型的反应器中，特丁津的降解率都超过了 90%；主要区别在于反应时间，在间歇式反应器中需要几分钟，而在半连续式反应器中只需几秒钟。在所有应用的 AOPs 中，都生成了 N-叔丁基-6-羟基-N'-乙基-1,3,5-三嗪-2,4-二胺（TBA-212）作为反应中间体。
