厌氧膜生物反应器膜污染影响因素及控制技术研究进展

Research Progress in Influence Factors and Control Technologies of Membrane Fouling in Anaerobic Membrane Bioreactor

目前厌氧膜生物处理技术被看作是处理废水的研究热点之一,它结合了厌氧生物处理与膜过滤系统,从而具有有机负荷高、出水水质稳定、去除率高、剩余污泥少、可回收能量、高效生物截留、占地少等优点。但是膜污染却成了厌氧膜反应器的一大缺点,使得膜通量大大降低,过滤阻力增加,阻碍了系统的稳定进行,且膜组件寿命也缩短,从而导致其在实际工程中的应用受到局限。因此,研究膜污染控制具有重要意义。综述了膜结构性质、料液特性、操作条件3大类膜污染影响因素及其控制手段,并在此基础上展望了膜污染控制方法的研究方向。

Currently, Anaerobic Membrane biological treatment technology, which was combined with anaerobic biological treatment and membrane filtration system, is becoming one of the research hotpots in the field of wastewater treatment. It has the advantages of high organic load, high removal efficiency, low sludge production and energy efficient, and small space occupation. However, membrane fouling is the major drawback, which can induce the reduction of flux, increase of filtration resistance, instability of system and loss of membrane life, which limits the widespread practical application of An MBR greatly.Therefore, it is of great significant to study the membrane fouling control. This paper proposed influence factors of membrane fouling such as membrane structure, properties of mix liquid and operation conditions. What’s more, membrane fouling control methods and the suggestions for further studies were also provided.