Theodorakopoulos George V, Arfanis Michalis K, Sánchez Pérez José Antonio, Agüera Ana, Cadena Aponte Flor Ximena, Markellou Emilia, Romanos George Em, Falaras Polycarpos
Institute of Nanoscience and Nanotechnology, National Center of Scientific Research "Demokritos", Agia Paraskevi, 15310 Athens, Greece.
Inorganic and Analytical Chemistry Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechneiou Str., Zografou, 15772 Athens, Greece.
Membranes (Basel). 2023 Feb 6;13(2):202. doi: 10.3390/membranes13020202.
Nowadays, the increased agro-industrial activities and the inability of traditional wastewater treatment plants (WWTPs) to eliminate recalcitrant organic contaminants are raising a potential worldwide risk for the environment. Among the various advanced water treatment technologies that are lately proposed for addressing this challenge, the development and optimization of an innovative hybrid photocatalytic nanofiltration reactor (PNFR) prototype emerges as a prominent solution that achieves synergistic beneficial effects between the photocatalytic degradation activity and size exclusion capacity for micropollutant molecules. Both these features can be contemporarily endued to a multitude of membrane monoliths. The physicochemical and the photoinduced decontamination properties of the titania materials were firstly determined in the powder form, and subsequently, the structural and morphological characterization of the obtained titania-modified membrane monoliths were accomplished. The PNFR unit can operate at high water recovery and low pressures, exhibiting promising removal efficiencies against Acetamiprid (ACT) and Thiabendazole (TBZ) pesticides and achieving the recycling of 15 m/day of real agro-wastewater. The obtained results are very encouraging, demonstrating the integration of titania photocatalysts in a photocatalytic membrane reactor as a feasible technological solution for the purification of agricultural wastewater.
如今，农业工业活动的增加以及传统污水处理厂（WWTPs）无法去除难降解有机污染物，正在给全球环境带来潜在风险。在最近提出的应对这一挑战的各种先进水处理技术中，创新型混合光催化纳滤反应器（PNFR）原型的开发与优化成为一个突出的解决方案，该方案在光催化降解活性和对微污染物分子的尺寸排阻能力之间实现了协同有益效果。这两个特性可以同时赋予多种膜整体材料。首先以粉末形式测定了二氧化钛材料的物理化学和光诱导去污性能，随后完成了所得二氧化钛改性膜整体材料的结构和形态表征。PNFR装置可以在高水回收率和低压下运行，对啶虫脒（ACT）和噻菌灵（TBZ）农药表现出可观的去除效率，并实现了每天15立方米实际农业废水的循环利用。所得结果非常令人鼓舞，证明了将二氧化钛光催化剂集成到光催化膜反应器中是净化农业废水的一种可行技术方案。
