The present study aimed at determining the presence and removal rate achieved through the main treatment stages of a full-scale wastewater reclamation plant for some classes of Organic Micropollutants. Furthermore, the human health risk due to the reuse of the final effluent containing residual concentrations of these pollutants for non-potable applications was assessed.

The 8-months monitoring campaign on the influent and effluent of the treatment stages of the plant highlighted that the main removal took place in the bioreactor, reaching median removal of 99 %, 97 %, 60 % 76 %, 71 %, 96 % and 100 %, for benzoylecgonine, cocaine, methamphetamine, trimetoprim, sulfadiazine, ketoprofene and caffeine, respectively. This result was also confirmed by the application of the principal component analysis. A further abatement, although slight, occurred in the tertiary compartment (made up by filtration, UV disinfection and chlorination) for sulfamethoxazole, trimethoprim and ketoprofen, determining a final median removal of 50 %, 94 % and 98 %, respectively. A significant correlation between the removal processes of the investigated organic micropollutants and the traditional water quality parameters was also found out. The human health risk for incidental ingestion and dermal contact resulted to be always below 1 under average and worst scenarios, which indicates that the risk can be considered acceptable.

本研究旨在确定通过大型废水回收厂的主要处理阶段对某些类别的有机微污染物的存在和去除率。此外，还评估了由于将含有残留浓度的这些污染物的最终流出物重新用于非饮用水应用而造成的人类健康风险。

对工厂处理阶段的进水和出水进行的为期 8 个月的监测活动强调，主要去除发生在生物反应器中，中值去除率分别为 99%、97%、60%、76%、71%、96% 和100%，分别用于苯甲酰爱康宁、可卡因、甲基苯丙胺、甲氧苄啶、磺胺嘧啶、酮洛芬和咖啡因。应用主成分分析也证实了这一结果。磺胺甲恶唑、甲氧苄氨嘧啶和酮洛芬在三级隔室（由过滤、紫外线消毒和氯化组成）中进一步减少，尽管幅度很小，最终中值去除率分别为 50%、94% 和 98%。还发现所研究的有机微污染物的去除过程与传统水质参数之间存在显着相关性。