开发了膜生物反应器和反渗透（MBR-RO）系统来评估 城市污水的潜在再利用应用。这项研究的目的是 检查整个系统的水质，重点是水性病原体， 消毒副产物（DBPs）和硝酸盐。这项研究表明 采用MBR-RO系统处理城市污水，然后进行消毒 生产高质量再生水的潜力。MBRO产生的回用水 该系统符合加利福尼亚州第22篇非饮用水应用的水再利用规定 以及美国环境保护局（USEPA）对三卤甲烷（80微克/升）、卤乙酸（60微克/升）的饮用水限值 u g/L）、亚氯酸盐（1.0 mg/L）、总大肠菌群（未检测到）、病毒（未检测到）和 硝酸盐/亚硝酸盐（10毫克N/L）。然而，由于 膜生物反应器中的氯膜清洗和后续反渗透的不完全去除 处理后的回用水THM水平足够高（53.6摄氏度+/-23.1微克/升），足以 这是饮用水应用中的一个潜在问题。再利用中的硝酸盐水平 高达3.6 mg N/L的水，这也是由于反渗透不完全去除造成的 膜，也可能是一个潜在的问题。MBR中的反硝化步骤应为 如果考虑饮用水应用，则应予以考虑。包括8个参考文献、图表。

A membrane bioreactor and reverse osmosis (MBR-RO) system was developed to assess potential reuse applications of municipal wastewater. The objective of the study was to examine the water quality throughout the system with a focus on waterborne pathogens, disinfection byproducts (DBPs) and nitrate. This study has demonstrated that the treatment of municipal wastewater by an MBR-RO system followed by disinfection has the potential to produce high quality reuse water. The reuse water produced by the MBRRO system meets California Title 22 water reuse regulations for non-potable applications and U.S. Environmental Protection Agency (USEPA) drinking water limits for trihalomethanes (80 u g/L), haloacetic acids (60 u g/L), chlorite (1.0 mg/L), total coliform (not detectable), viruses (not detectable), and nitrate/nitrite (10 mg N/L). However, THM formation (182 to 689 u g/L) due to membrane cleaning with chlorine in the MBR and incomplete removal by subsequent RO treatment resulted in reuse water THM levels that were high enough (53.6 degrees+/- 23.1 u g/L) to present a potential concern in drinking water applications. Nitrate levels in the reuse water of up to 3.6 mg N/L, which also resulted from incomplete removal by the RO membrane, may also be a potential concern. A denitrification step in the MBR should be considered if potable water applications are considered. Includes 8 references, figures.