Abstract A novel electro-coagulation/oxidation membrane reactor (ECOMR), in which electrocoagulation (EC) and electrooxidation (EO) were integrated into one reactor with the membrane module placed in the electric field zone between the electrodes, was designed to create synergistic coagulation and oxidation effects for mitigation of ultrafiltration membrane fouling. The results showed that EO modulated the morphology of the cake layer by breaking up humic acid (HA) molecules (i.e., carboxylic functional groups and aromatic structures), giving a more porous cake layer, while EC increased the hydrophilicity of the formed cake layer, leading to the alleviation of membrane fouling. The cake layer formed in the ECOMR by combination of EC and EO under electric fields was more hydrophilic and more porous, resulting in a normalized water flux about 9.57% and 13.2% higher than the EC membrane reactor (ECMR) and EO membrane reactor (EOMR), respectively. Moreover, the cake layers formed in the ECOMR exhibited lower affinity for the membrane surface, which meant they were easier to clean off. These findings demonstrate that the ECOMR is a promising water treatment technology to alleviate membrane fouling as well as improve water quality.

中文翻译：

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通过调节电凝/氧化膜反应器 (ECOMR) 中的滤饼层孔隙率和亲水性增强膜污染缓解

摘要 设计了一种新型电凝/氧化膜反应器 (ECOMR)，将电凝 (EC) 和电氧化 (EO) 集成到一个反应器中，并将膜组件置于电极之间的电场区，以实现协同混凝。和氧化作用以减轻超滤膜污染。结果表明，EO通过破坏腐殖酸（HA）分子（即羧基官能团和芳香结构）来调节滤饼层的形态，提供更多孔的滤饼层，而EC增加了形成的滤饼层的亲水性，从而减轻膜污染。EC 和 EO 在电场作用下在 ECOMR 中形成的滤饼层更亲水且多孔，导致归一化水通量约为 9。分别比 EC 膜反应器 (ECMR) 和 EO 膜反应器 (EOMR) 高 57% 和 13.2%。此外，在 ECOMR 中形成的滤饼层对膜表面的亲和力较低，这意味着它们更容易清除。这些发现表明 ECOMR 是一种很有前途的水处理技术，可以减轻膜污染并改善水质。