Electro-Fenton enhanced porous carbon (PC) - carbon nanotubes (CNT) hollow fiber membranes loaded with Fe²⁺ were firstly used to alleviate the membrane fouling caused by microalgal cells and extracellular organic matter (EOM) in microalgae harvesting. Electrical repulsion effect could reduce the deposition of oppositely charged algal cells and EOM on the membrane surface. The generation of •OH in-situ in electro-Fenton process could degrade EOM on the membrane surface and even inside the pores. Continuous mode results illustrated that the electro-Fenton enhanced microalgae harvesting process could significantly retard transmembrane pressure increasing and strengthen microalgae concentration capacity by 2.5 times at the optimally applied voltage (−1.0 V). The pure water permeance after operation was 16 times higher compared to the control (without electro-Fenton), and recovered to 98% of the initial value after the hydraulic cleaning, while the control group only recovered to 88%. In intermittent mode, the membrane permeance could recover to 100% after operation by electro-Fenton regeneration for 30 min with microalgae concentrating from 1.05 g/L to 7.45 g/L. The electro-Fenton-enhanced membrane could not only mitigate the reversible fouling, but also effectively inhibit the irreversible fouling, and presented prominent separation abilities without obvious damage to membranes and microalgae cells.

负载Fe ^2+的电子芬顿增强多孔碳（PC）-碳纳米管（CNT）中空纤维膜首先用于减轻微藻收获过程中微藻细胞和细胞外有机质（EOM）引起的膜污染。电排斥作用可以减少带相反电荷的藻类细胞和EOM在膜表面的沉积。在电子芬顿过程中原位生成•OH可能会降解膜表面甚至孔内的EOM。连续模式结果表明，在最佳施加电压（-1.0 V）下，电芬顿增强型微藻的收获过程可以显着抑制跨膜压力的升高，并使微藻的浓缩能力提高2.5倍。操作后的纯净水渗透率比对照（不使用电子芬顿）高出16倍，并且在水力清洁后恢复到初始值的98％，而对照组仅恢复到88％。在间歇模式下，通过电子芬顿再生操作30分钟后，微藻浓度从1.05 g / L增至7.45 g / L，膜渗透率可恢复到100％。电子芬顿增强膜不仅可以减轻可逆结垢，而且可以有效抑制不可逆结垢，并具有显着的分离能力，而不会对膜和微藻细胞造成明显损害。