This study used UV/O₃-aMBR system for treating polluted surface water with COD_Mn around 10 mg/L, to improve the removal of non-biodegradable components. UV/O₃ was used in the recirculation stream, partially treating the recalcitrant in aMBR permeate to improve its biodegradability, and then send back to aMBR for biodegradation. Removal performance of UV/O₃-aMBR system with recirculation ratio 20, 40, 60 and 80% was tested and compared. The removal of COD_Mn, UV₂₅₄ and NH₃-N increased with the increment of recirculation ratio. UV/O₃-aMBR system has higher recalcitrant removal performance and less membrane fouling. The fluorescent dissolved organic matter (FDOM) was largely reduced in UV/O₃-aMBR system, and the system hydrophilicity was higher than aMBR system. The Modified Stover Kincanoon model was able to describe UV/O₃-aMBR system; and has higher Umax than aMBR system. UV/O₃-aMBR can be develop as an effective technology in improving recalcitrant removal in polluted surface water treatment.

这项研究使用UV / O ₃ -aMBR系统处理大约10 mg / L的COD _Mn污染的地表水，以提高非生物降解成分的去除率。在循环流中使用UV / O ₃，对aMBR渗透液中的顽固剂进行部分处理以提高其生物降解性，然后送回aMBR进行生物降解。测试并比较了再循环比为20％，40％，60％和80％的UV / O ₃ -aMBR系统的去除性能。COD _Mn，UV ₂₅₄和NH ₃ -N的去除随着再循环比的增加而增加。紫外线/氧气₃-aMBR系统具有更高的顽固除水性能和更少的膜污染。在UV / O ₃ -aMBR体系中荧光溶解的有机物（FDOM）大大降低，并且系统亲水性高于aMBR体系。改进的Stover Kincanoon模型能够描述UV / O ₃ -aMBR系统。并且具有比aMBR系统更高的Umax。可以将UV / O ₃ -aMBR开发为一种有效的技术，以改善受污染地表水处理中顽固性污染物的去除。