Log removal values (LRV) for a range of pathogens in membrane bioreactors (MBRs) were aggregated for 180 sampling events across 11 municipal scale installations. Important correlations were established between LRV for biological (LRV_Bio) and physical (LRV_Mem) inactivation with reactor conditions (pH, temperature, solid and hydraulic retention times (SRT, HRT), and mixed liquor suspended solids (MLSS)), membrane properties (pore size and flux), operational variables and filtrate quality. LRV_Bio correlated positively and significantly between all microorganism indicators and dissolved organic carbon (DOC), becoming a suitable monitoring technique for biological removal. LRV_Mem correlated positively for protozoa indicators and bacteria consistent with size exclusion as a predominant removal mechanism. Strong correlations between LRV for protozoa, virus and bacteria indicators were established at lower flux, TMP and MLSS, higher pH and temperature and longer solids and hydraulic retention time. The implications of this study provide important guidance for the validation of MBRs producing safe and consistent recycled water.

跨膜生物反应器（MBR）中一系列病原体的对数清除值（LRV）汇总了11个市政规模安装中的180个采样事件。在生物（LRV _Bio）和物理（LRV _Mem）灭活的LRV与反应器条件（pH，温度，固体和水力停留时间（SRT，HRT）以及混合液悬浮固体（MLSS）），膜性能之间建立了重要的关联。（孔径和通量），操作变量和滤液质量。LRV _Bio与所有微生物指标和溶解有机碳（DOC）之间呈显着正相关，成为适合生物清除的监测技术。LRV_记忆原生动物指标和细菌呈正相关，与大小排阻相一致，这是主要的清除机制。在较低通量，TMP和MLSS，较高的pH和温度以及较长的固体和水力停留时间下，LRV与原生动物，病毒和细菌指标之间建立了很强的相关性。这项研究的意义为生产安全，一致的循环水的MBR的验证提供了重要的指导。