膜生物反应器运行条件的优化及膜污染的控制

Optimization of the Operation Parameters on MBR and Membrane Fouling Control

初步讨论了膜生物反应器MBR运行条件的优化和膜污染的控制 ,提出低压操作不仅有利于提高能量利用效率 ,而且有利于膜通量长时间保持较高水平。试验结果表明 :膜的污染是造成膜生物反应器能耗较高的主要原因 ;采用恒通量操作方式 ,在运行初期控制初始膜通量 ,有利于控制膜污染的产生 ;反冲洗是保持恒定膜通量 。

In this paper, optimization of operation parameters on membrane bioreactor (MBR) is investigated and membrane fouling countermeasures are discussed. The results show that the low pressure operation can reduce energy consumption and retain high flux; membrane fouling is crucial factor for energy consumption; constant flux operation can alleviate membrane fouling; back washing is effective countermeasure to retain constant flux.