Abstract Triple antifouling strategies with fouling release, fouling resistance and contact killing attributes have been utilized for the control of reverse osmosis membrane biofouling. The membrane surface modification procedure is simple and time-efficient. After the interfacial polymerization process, the membrane was rinsed by n-hexane with addition of 2,2,3,4,4,4-hexauorobutyl methacrylate (HFBM), then exposed to UV irradiation for 20 s, and finally immersed into a tobramycin (TOB) aqueous solution for 30 s. The resultant membrane maintains the high permselectivity of the virgin membrane. Because of the synergistic effects of low-surface-energy brushes (fouling release) and hydrophilic TOB segments (fouling resistance) on the modified membrane surface, the membrane demonstrates superior antifouling property. Further, owing to the bactericidal attribute of TOB, the membrane exhibits strong antimicrobial activity. The membrane shows high antibiofouling property due to the triple antifouling strategies. The fouling results of combined foulants also highlight the membrane antifouling and antibiofouling properties. Moreover, the membrane shows excellent performance stability during the long-term cross-flow test and chemical cleaning process.

中文翻译：

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反渗透膜生物污染控制的三重防污策略

摘要 具有污垢释放、污垢阻力和接触杀伤属性的三重防污策略已被用于控制反渗透膜生物污垢。膜表面改性程序简单且省时。界面聚合过程后，膜用正己烷冲洗，加入甲基丙烯酸 2,2,3,4,4,4-六氟丁酯（HFBM），然后暴露于紫外线照射 20 秒，最后浸入妥布霉素中(TOB) 水溶液 30 秒。所得膜保持原始膜的高渗透选择性。由于低表面能刷（污垢释放）和亲水性 TOB 链段（耐污垢）在改性膜表面的协同作用，膜表现出优异的防污性能。更多，由于TOB的杀菌特性，该膜表现出很强的抗菌活性。由于三重防污策略，该膜显示出高抗生物污损性能。复合污染物的污染结果也突出了膜的防污和抗生物污损性能。此外，该膜在长期错流测试和化学清洗过程中表现出优异的性能稳定性。