Reverse osmosis (RO) technique has been widely used in the advanced treatment of industrial water and wastewater. However, this process generates a large amount of reverse osmosis concentrate (ROC) which contain high salinity and organic contaminants, and therefore pose serious environmental problems. This study explored the potential of advanced oxidation processes-ultrafiltration (AOPs-UF) pretreatment system and nanofiltration (NF90, Dow Chemicals) membrane system for ROC desalination. Under the optimal conditions, 78% of COD and 81% of UV₂₅₄ pollutants were removed by using advanced oxidation processes with ultrafiltration pretreatment technology. Box-Behnken design (BBD) results showed that the maximum total soluble salts rejection of 97.75% was obtained under the optimized conditions of nanofiltration membrane (the 1.18 MPa operating pressure, 6.79 °C feed temperature, 64.33 min filtration time). A combined membrane cleaning method was finally determined via surface morphology characterization by the comparison of scanning electron microscope (SEM), X-ray energy dispersive analysis (EDS) and Fourier transform infrared (FTIR) technique analysis. The results confirmed the possibility of advanced oxidation coupled membrane treatment process to treat ROC and realize its reuse. Moreover, by evaluating the benefit calculation, it provides insights for the treatment of industrial wastewater.

反渗透（RO）技术已广泛应用于工业水和废水的深度处理。然而，该过程会产生大量含有高盐度和有机污染物的反渗透浓缩物（ROC），因此造成严重的环境问题。本研究探讨了高级氧化工艺——超滤 (AOPs-UF) 预处理系统和纳滤 (NF90，陶氏化学) 膜系统在 ROC 脱盐方面的潜力。在最佳条件下，78%的COD和81%的UV ₂₅₄采用高级氧化工艺和超滤预处理技术去除污染物。Box-Behnken 设计 (BBD) 结果表明，在纳滤膜优化条件下（1.18 MPa 操作压力、6.79 °C 进料温度、64.33 min 过滤时间），获得了 97.75% 的最大总可溶性盐截留率。通过扫描电子显微镜 (SEM)、X 射线能量色散分析 (EDS) 和傅里叶变换红外 (FTIR) 技术分析的比较，通过表面形貌表征最终确定了组合膜清洗方法。结果证实了高级氧化耦合膜处理工艺处理ROC并实现其再利用的可能性。此外，通过评估收益计算，