School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China.
J Hazard Mater. 2018 Feb 15;344:1198-1208. doi: 10.1016/j.jhazmat.2017.11.024. Epub 2017 Nov 14.
A heterogeneous catalytic ozonation/membrane filtration (HCOMF) system was fabricated by integrating a flat-plate polyvinylidene fluoride (PVDF) membrane module along with a slurry catalytic ozonation reactor. The performance and catalytic activity of HCOMF was evaluated for degradation of model wastewater containing bisphenol A (BPA) and humid acid (HA) under different permeation flux in long-term continuous experiments. The membrane fouling was investigated by trans-membranous pressure (TMP), membrane filtration resistance, scanning electronic microscopy (SEM), and fluorescence spectra. The results showed that HCOMF system exhibited an excellent and stable catalytic activity in long-term continuous experiments owning to integration of 3D MnO hollow microsphere ozone-catalysis with flat-plate membrane filtration. The TMP of HCOMF system didn't increase significantly, and the membrane resistance R and R declined from 4% and 16% to 1% and 4%, respectively, thus, the membrane fouling of HCOMF system was mitigated compared to MF system. The mitigation of membrane fouling in HCOMF system was attributed to the increase of hydrophilicity of membrane surface and change of HA fractions.
采用平板聚偏氟乙烯（PVDF）膜组件与浆态催化臭氧氧化反应器集成的方式，构建了多相催化臭氧/膜过滤（HCOMF）系统。在长期连续实验中，在不同渗透通量下，评价了 HCOMF 对含有双酚 A（BPA）和湿酸（HA）的模型废水的降解性能和催化活性。通过跨膜压力（TMP）、膜过滤阻力、扫描电子显微镜（SEM）和荧光光谱研究了膜污染。结果表明，由于 3D MnO 中空微球臭氧催化与平板膜过滤的集成，HCOMF 系统在长期连续实验中表现出优异且稳定的催化活性。HCOMF 系统的 TMP 没有显著增加，膜阻力 R 和 R 分别从 4%和 16%下降到 1%和 4%，因此，与 MF 系统相比，HCOMF 系统的膜污染得到了缓解。HCOMF 系统中膜污染的缓解归因于膜表面亲水性的增加和 HA 分数的变化。
