Korea Institute of Energy Research, New and Renewable Energy Research Division, Hydrogen Laboratory, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, South Korea; Chungnam National University, Graduate School of Energy Science and Technology, 99 Daehak-ro, Yuseong-gu, Daejeon 306-764, South Korea.
Korea Institute of Energy Research, New and Renewable Energy Research Division, Hydrogen Laboratory, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, South Korea; HanyangUniversity, Department of Civil and Environmental Engineering, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, South Korea.
J Hazard Mater. 2017 Aug 15;336:21-32. doi: 10.1016/j.jhazmat.2017.04.047. Epub 2017 Apr 23.
In this study, the performances of photocatalytic reactors of the small and scale-up rotating and flat types were evaluated to investigate the treatment of new emerging contaminants such as bisphenol A (BPA), 17α-ethynyl estradiol (EE2), and 17β-estradiol (E2) that are known as endocrine disrupting compounds (EDCs). In the laboratory tests with the small-scale rotating and flat reactors, the degradation efficiencies of the mixed EDCs were significantly influenced by the change of the hydraulic retention time (HRT). In particular, considering the effective two-dimensional reaction area with light and nanotubular TiO (NTT) on a Ti substrate, the rotating reactors showed the more effective performance than the flat reactor because the degradation efficiencies are similar in the small effective area. In addition, the major parameters affecting the photocatalytic activities of the NTT were evaluated for the rotating reactors according to the effects of single and mixed EDCs, the initial concentrations of the EDCs, the UV intensity, and dissolved oxygen. In the extended outdoor tests with the scale-up photocatalytic reactors and NTT, it was confirmed from the four representative demonstrations that an excellent rotating-reactor performance is consistently shown in terms of the degradation of the target pollutants under solar irradiation.
在这项研究中，评估了小型和放大旋转和平板型光催化反应器的性能，以研究处理新型新兴污染物，如双酚 A（BPA）、17α-乙炔雌二醇（EE2）和 17β-雌二醇（E2），这些物质被称为内分泌干扰化合物（EDCs）。在小型旋转和平板反应器的实验室测试中，混合 EDCs 的降解效率受到水力停留时间（HRT）变化的显著影响。特别是，考虑到 Ti 基底上的光和纳米管状 TiO（NTT）的有效二维反应面积，旋转反应器的性能比平板反应器更有效，因为在小有效面积下，降解效率相似。此外，根据单一组分和混合 EDCs、EDCs 的初始浓度、UV 强度和溶解氧的影响，评估了影响 NTT 光催化活性的主要参数。在放大的光催化反应器和 NTT 的室外扩展测试中，从四个代表性演示中证实，在太阳照射下，目标污染物的降解中，旋转式反应器始终表现出优异的性能。
