膜生物反应器（MBR）技术结合了生物反应器的功能 膜分离反应器。MBR取代了传统工艺的两个阶段 活性污泥法（生物处理和澄清）采用单一的综合工艺。 MBR的主要优点包括减少占地面积、减少污泥产量 生物反应器中的高生物量浓度和更高质量的产品水。 膜生物反应器最大的缺点是膜污染。污垢导致渗透 通量下降，增加了膜清洗和更换的频率。 大约98%的MBR系统是好氧MBR。他们大多 用于处理需要占地面积小的生活和工业废水， 需要水的再利用，或者存在严格的排放标准。近年来，有 由于厌氧膜生物反应器（ANMBR）的使用 与好氧系统相比的优势，如污泥产量低、能耗低 要求。 尽管有这些优势，厌氧MBR是一种发展缓慢的技术， 主要是因为污垢问题。在这方面的研究已经取得了很大进展 好氧膜生物反应器的污染机理，但厌氧膜生物反应器的污染机理并非如此。 厌氧系统中的污垢仍然知之甚少。虽然已经 已经确定鸟粪石、细菌细胞和胶体物质是主要的膜污染物，关于胞外聚合物的作用的信息仍然有限 （EPS）和可溶性微生物产物（SMP）对厌氧MBR污染的影响 膜。 此外，厌氧MBR的一种新方法是 水下配置。目前关于这方面的信息很少 配置，具体而言，只有两项研究（Fawehinmi等人，2005年和Hu和 Stukey（2006）已在有关淹没厌氧菌的文献中确定 MBR。 当前研究的主要目的是调查 在浸没式ANMBR中生产EPS和SMP的操作条件，以及 确定这些代谢副产物对膜污染的作用。包括6个参考文献，图。

Membrane bioreactor (MBR) technology combines the functions of a biological reactor with membrane separation. The MBR replaces two stages of the conventional activated sludge process (biotreatment and clarification) with a single, integrated process. The main advantages of MBRs include reduced footprint, reduced sludge production due to a high biomass concentration in the bioreactor, and higher quality product water. The most substantial drawback of MBRs is membrane fouling. Fouling causes permeate flux decline and increases the frequency of membrane cleaning and replacement. Approximately 98% of MBR systems are aerobic MBRs. They have mostly been used to treat domestic and industrial wastewater, where a small footprint is required, water reuse is desired, or stringent discharge standards exist. In recent years there has been growing attention towards the use of anaerobic MBRs (AnMBRs), due to their advantages over aerobic systems, such as lower sludge production and reduced energy requirements. Despite these advantages, anaerobic MBRs are a slow-developing technology, mainly because of fouling problems. Much progress has been made in the study of fouling mechanisms in aerobic MBRs, but the same cannot be said for anaerobic MBRs. Fouling in anaerobic systems is still poorly understood. Although it has been established that struvite, bacterial cells, and colloidal matter are major membrane foulants, there is still limited information on the role of extracellular polymeric substances (EPS) and soluble microbial products (SMP) on the fouling of anaerobic MBR membranes. Furthermore, a novel approach in anaerobic MBRs is represented by the submerged configuration. At present time there is very little information about this configuration, and specifically, only two studies (Fawehinmi et al. 2005 and Hu and Stukey 2006) have been identified in the literature concerning submerged anaerobic MBRs. The main objectives of the current study are to investigate the influence of operating conditions on the production of EPS and SMP in submerged AnMBRs and to determine the role of these metabolic byproducts on membrane fouling. Includes 6 references, figure.