In this work, an experimental study on the influence of hydrodynamic conditions on the total degradation process of ibuprofen dissolved in water has been carried out. A comparative analysis of the use of TiO₂ in suspension under different operating conditions has been performed using a static mixer to increase the agitation regime of the fluid inside a tubular reactor. The ibuprofen degradation level and carbon concentration were measured by means UV spectroscopy and TOC, respectively. On the other hand, the particle image velocimetry technique has been used to characterize the flow behavior. The presence of the static mixer produced high perturbations on the water flow, increasing the mixing rate of the generated OH• radicals in the solution as well as the contact of the suspended TiO₂ particles with the contaminated water. A combination of the static mixer at the lowest flow rate increased the residence time in the radiated region resulting in the highest degradation rates. Additionally, the turbulent intensity played an important role on the intensification and improvement of the degradation activity, then it should be considered as key performance parameter of tubular reactors.

在这项工作中，对水动力条件对溶于水中的布洛芬总降解过程的影响进行了实验研究。使用静态混合器对管状反应器内部流体的搅拌方式进行了比较，分析了在不同操作条件下悬浮液中TiO ₂的使用情况。布洛芬的降解水平和碳浓度分别通过紫外光谱法和TOC法测定。另一方面，粒子图像测速技术已用于表征流动行为。静态混合器的存在对水流产生高扰动，从而增加了溶液中生成的OH•自由基的混合速率以及悬浮的TiO ₂的接触颗粒与被污染的水。静态混合器在最低流速下的组合会增加在辐射区域的停留时间，从而导致最高降解率。此外，湍流强度对强化和提高降解活性起着重要作用，因此应将其视为管式反应器的关键性能参数。